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(21 pages) Index; GRC-109/RS-1; What, Why, When, Where Part I, An Interveiw With Bob Olsen, by Pete McCollum GRC-109/RS-1; What, Why, When, Where Part II, Descriptions, & Observations of the RS-1, GRC-109, & GRA-71 By Pete McCollum with Further Comments by Dennis Starks GRC-109/RS-1; What, Why, When, Where Part III, History ? by Pete McCollum Dispelling The Myths, Part I, by Dennis Starks GRC-109/RS-1; What, Why, When, Where Part IV; Dispelling The Myths, Part II, by Dennis Starks GRC-109/RS-1; What, Why, When, Where Part V; Dispelling The Myths, Part III, by Dennis Starks RS-1/RS-6/GRC-109; Serial Number Info

   GRC-109/RS-1; What, Why, When, Where Part I, An Interveiw With Bob Olsen, by Pete McCollum Foreword, We will begin this series with an interview conducted by Pete about a year ago. The second part will contain a detailed description of the radios, along with some observations & peculiarities of the set Pete has documented. Pete has spend a considerable amount of time & effort in the last couple of years tracking down all the possible information he could on the RS-1,6, & GRC-109, PRC-64 & various other Special Forces & CIA type equipment. Though I usually start a series or article with the historical background, this time I will finish with it. Part III will be an attempt by myself & Pete to date & document the history of these sets. As we have differing opinions, this may turn out to be interesting. The next series will be on the RS-6 which may in fact become heated, as the theories, rumors, facts, & fiction are separated. The RS-6 will follow the RS-1/GRC-109 because there are some interesting similarities. Dennis Starks; MILITARY RADIO COLLECTOR/HISTORIAN military-radio-guy@juno.com ----------------------------------------------------------------------------------------------------------------
    Part I, An Interveiw With Bob Olsen, by Pete McCollum Following is an interview with Bob Olsen, from a phone conversation in August,1996. Bob is a retired CIA veteran and Signal Corps radio operator. I met Bob last year at a reunion of folks who used to live on Saipan (in the Mariana Islands, near Guam). In the 50's and 60's, Saipan was a CIA training base. Trainees would be flown in from various Asian countries, trained, then sent back to spy on the Communists and other groups that CIA was interested in keeping track of. I was born there the year after Bob left. Among other things, Bob trained recruits in how to use the RS-1 radio set. --------------------------------------------------
    P: What do you recall about 'when & where' the RS-1 equipment was used? B: Well, we used it in the old days, you know, we didn't have satellites in the sky and all that. So when we needed to get information out of a country, we had to find somebody that was willing to go back in and send it out or bring it out, either for nationalistic reasons or for money. I worked with some people from Tibet. These guys couldn't read or write their own language, they had no skills at all, but they were really sharp. I taught them all about 12 WPM of code, and we had to teach them a cryptographic system. Someone else taught them the paramilitary stuff - jumping out of airplanes and all that. So, my job was teaching them communications. In this group [of guys from Tibet], four of them were Buddhist monks, and two traders that used to ride in and out of Nepal on yaks. We've got to train them, then drop them in with the RS-1 gear. We had GN-58 hand-crank generators, and also power supplies to go with the equipment. The hardest thing to teach them was security - how to take care of their cryptographic gear, not get caught, how to not do any operating in a building where they'd be dimming the lights. Basically we taught them to use the GN-58 more [often than the AC power supply]. But security was a hard thing to get across to them, they really just didn't understand that. [Anyway,] these guys all went in and every one of them came up on the air. I was down on Saipan and Taipei waiting for them to come back - they were dropped in from 15,000 feet out of a B-17. But basically, what we used that equipment for was clandestine work - send'em in with a signal plan and a whole gunnysack full of crystals - they didn't work the same frequency too often. P: Do you recall about what year that would have been? B: They were dropped in in '57 - the last year I worked with [the RS-1] was '58. People would say they can't learn code, but you have to live with them, day and night. And we did - we actually slept with them in their quarters, and we had an interpreter. But, you don't know if they would get in there and then someone would pay them more money, or they would get killed, or something, and you would never hear from them again. So it got kind of nerve- wracking, you work with somebody for 5 or 6 months, you get attached to them. P: What years were you on Saipan? B: [From about] 1953 and '54, and we left in '58. P: You had mentioned to me last year that you had to modify crystals and such? B: Yeah, we had the little [FT-243 crystals], and we'd take them apart and etch them. You could also grind them on a plate of glass with jeweler's rouge, and if you get them too high, you could bring them down a little bit with a little India ink. I did a lot of that - had to get a lot of crystals ready for a run. P: So somebody else would decide what frequencies would be used? B: Well, we had an operations man in the Commo group, and he'd come up with a signal plan: when he [the agent] would come up [on the air], and how often, and what frequency. We didn't want him to sit on one frequency. P: Do you remember any maintenance problems with the RS-1, or things that were unreliable? B: No, I don't. You know, the fact that we dropped those things out of airplanes, and everything else, and still had 'em work, it speaks pretty good for 'em. I used the RS-1 on several training missions - they were the old staple. P: Did you use the key that's on top of the transmitter [RT-3], or did you send a separate key with it? B: No, we used the key on top of it. We had no frills on it - we taught 'em to tune it up and use the GN-58 or the power supply. P: Did you ever work with any aircraft radio gear? B: I was a CW operator all through WWII for the Air Force in India. The first good radio that came out was called an ART-13 Collins 10-channel. After WWII, in Korea, we still had them laying in a motor pool. I was a Commo sergeant in a signal company. This stuff was all laying in a motor pool - the [SCR-]399 with a BC-610. I'd go down to the motor pool with a fifth of whiskey and I could get a whole truck load of stuff. I was trained in aircraft [radio equipment] maintenance at Scott Field, Illinois, but I leaned toward the operating side - I was a high-speed operator. A lot of my friends at CIA where old-timers from OSS; although I wasn't with them until the latter part of the Korean war. The ol' CIA was a good outfit. There are bums in everything, but most everybody was trying to do a good job. I think as a whole we did. We pulled off some pretty cagey deals, but that's the only way we could do it in those days. So, I take it with a grain of salt when I hear these reporters bad-mouth the thing, you know? When I was on Saipan, I was basically involved in training, although I did install a big monitoring setup there, with two 10 KW Collins 10-channel transmitters, and three hundred-foot towers. I got hooked into that - I'm basically not an engineer, but the engineer they had his time was up, so sure enough, the Chief of Station says "you're it". I *worked*, trying to dig footings for 100-foot towers through the coral. Old Ely Popovich was an old WWII man that they dropped into Yugoslavia - he was a demolitions expert. I finally ended up with him coming out there with black powder, and blowing footings for all my towers and guys. P: What kind of receiving equipment was on Saipan as part of that station? B: We had SP-600's, and Collins 51-J's. And we had some of those old 342's that come out of the 399 units. I was in Tokyo when the Korean war broke out, and I got the first SP-600 that was built. The old Chief Signal Officer, he was a Major-General, he got 'em for me. Every time MacArthur flew, I maintained solid communications with him. Everywhere he went, I worked him - when he went down to Wake and got fired, worked him when he was going home, and the guy that come over to settle the peace treaty, and they passed each other in mid-air. They couldn't work each other, so I sat there and relayed between the two airplanes for about two hours. CIA picked me up the last year I was in Tokyo, and I worked out of Yokosuka with them. I met an old guy there, Admiral Ueda [or Wada?], he was a communications officer for the Japanese Navy. He was in Washington when MacArthur was a 2nd Lieutenant - that's how old he was. I used to do a lot of procurement for the outfit. We'd go on these trips to different electronic firms, trying to buy stuff. One of them was a clandestine radio [Don't know which model Bob was referring to here - he told me that there were reliability problems with it], and batteries - we were trying to get batteries that weren't ages old. In the Signal Corps, the batteries had been sitting on a shelf for 6 or 7 years, and you'd have to take a wheelbarrow-full of batteries to operate an SCR-300. So, we got to talking [Bob and Admiral Ueda], and he had a son that was the same age as me who was killed in a Japanese submarine. But, he was retired when the war broke out, and they called him back in. He was an interesting old guy - I learned a lot from him - I learned to respect the Japanese. ****************************************************
    GRC-109/RS-1; What, Why, When, Where Part II, Descriptions, & Observations of the RS-1, GRC-109, & GRA-71 By Pete McCollum with Further Comments by Dennis Starks Descriptions, ------------
    The RS-1 consists of: - Receiver RR-2. Tunes 3-24 mhz in 3 bands: 3-6, 6-12, and 12-24 mhz. Tube complement: 1T4 RF amp, 1L6 converter, 1T4 455 khz IF (two), 1U5 detector/audio, and 1T4 BFO/audio. The 1L6 tube seems to be somewhat hard to find, and is in demand because it was used in certain models of the Zenith Trans-Oceanic radio. It is believed that a 1U6 would work in place of the 1L6, but 1U6's are rare, too. Size: 8.625 X 5.5 X 5.438 inches. - Transmitter RT-3. Tunes 3-22 mhz, xtal control, accepts crystals with 3/4" pin-spacing (i.e. FT-243), or 1" pin-spacing. 15W maximum output. Tube complement: 6AC7 oscillator and 2E26 final. Size: 8.625 X 5.5 X 5.438 inches. - Power supply RP-2 or RP-3. Input is 75-260 VAC, 40-1000 Hz; with switch- selectable input voltage and a meter to indicate the current line voltage. The RP-3 is bigger, and allows operation from 6 VDC using a vibrator circuit. Uses a 0B2 as a regulator for the receiver's B+. The GRC-109 is the Army adoption of the RS-1, and consists of receiver R-1004, transmitter T-784, and power supply PP-2685 or PP-2684. The RS-1 and GRC-109 are identical except for labeling, although all known T-784's have a connector for a Burst Coder (GRA-71) on the front panel. This difference is an "MWO" (Modification Work Order) on the T-784. The T-784 characteristics are described in NSN 5820-00-892-0880. Cost:$532. The R-1004 characteristics are described in NSN 5820-00-892-0882. Cost:$1122. The units are waterproofed and tested for 7.5 PSI. There is also a GRC-109A set, which is a later model which has a different case with hasp-type lid fasteners, instead of thumbscrews; and there is a carrying handle built into one side. It also has some cost-saving design changes: for example, the window for the tuning dial is a part of the front-panel casting, instead of being a separate screw-on piece. The non-A model is more 'attractive'. The GRA-71 is a device that allows the user to record a message composed of dits and dahs onto a small tape cartridge, then the message is 'played back' at a rate of about 300 WPM, and electrically keys the T-784. The purpose is to 'burst transmit' a message, so that the bad guys don't have enough time to RDF your location. Also, the burst message is not copy-able unless you are able to record it, then play it back at a reduced speed. A few other radios (such as the PRC-64 and PRC-104) support the GRA-71 also. Apparently some GRA-71's were made with non-Roman letters on the coder wheels, for use in S.E. Asia. Some general notes and observations: ------------------------------------
    The PP-268x/RP-x power supply, in combination with the 'lampholder adaptor', allow the GRC-109/RS-1 to be operated from AC mains practically anywhere in the world. Physically, you can plug into either US-style AC outlets, or into round-pin (European-style) outlets. The round pins can be unscrewed and inverted to change the diameter of the pins, plus the rubber plug is somewhat flexible to allow changing the spacing of the pins. One part of the lampholder adaptor can be used to get power from a standard light bulb socket, or from a bayonet-style bulb socket. Radio Shack sells a Euro-to-US AC plug adaptor that can be used if you don't have the 'lampholder adaptor'. Electrically, the PP-268x/RP-x units accept a wide range of voltages and frequencies. The R-1004/RR-2 and T-784/RT-3 are also designed with flexibility in mind. Note that with the exception of the burst-keyer connector and the power supply connectors, everything uses simple binding posts for electrical connections. I believe that this was to facilitate emergency hookups for antennas, headphones, etc. (also, these types of connectors allow the front panel to be water-tight more easily) For example: I can imagine an operative in some low-budget east-Asian hotel room, with his RS-1 set plugged into the bare bulb socket hanging from the ceiling, the antenna wire draped across the curtain rods, and the ground wire clamped onto the cast-iron radiator (the wire and clamp is included with the GRC-109 set). Discovering that his headphones are missing, he uses the TL-29 knife (also included with the GRC-109 set) to cut the handset off of the telephone, strip the wires, and connect it to his RR-2's 'Phones' binding posts. This would be a messier task if the radio had something like a 1/4" phone jack to deal with. In case the code key on the T-784/RT-3 is damaged, there are binding posts for you to connect a substitute. It seems that Admiral made most/all of the GRC-109 and RS-1 stuff, and that Oklahoma Aerotronics made the GRC-109A's. The "A" models seem to all have an A-suffix on the serial number, and they have snap-type lid fasteners instead of thumbscrews. All (?) T-784's have been modified as per "MWO 11-5820-474-35/1", which is described in the GRA-71 manual as: "Modification of Radio Set AN/GRC-109 to make it compatible with Coder - Burst Transmission Group AN/GRA-71". Presumably, this MWO was to install the connector on the T-784 that mates with the GRA-71. -------------------------------------------------------------------------------
    Notes on the GRA-71 (from the manual): - TM 11-5835-224-12: "Coder - Burst Transmission Group AN/GRA-71", dated 27 May 1964. Bill Howard has a copy of the manual that Stenographic Machines sent to the government - it is spiral bound, and dated 1-Jan-1964. - Manual mentions that info is copyrighted by Stenographic Machines, Inc. They are the original maker, but Arvin made the low bid on the second lot. - Alternate nomenclature (used by Stenographic Machines) for the pieces are as follows: MX-4496 CO/B-8 MX-4495 CO-3B KY-468 KE-8B MA-9 CA-3B MX-4498 KA-3 - The manual specifically mentions the T-784/GRC-109 transmitter - it does not say that the GRA-71 can be used with any other radio. - The "IDY" button sends out a continuous stream of "dots" at 300 WPM. It apparently is the same on all units, *not* a unique identifier signal. - The 'handle extension' on the MX-4496 is supposed to be opened while in use, to allow you to more easily and smoothly operate it. - The tape in the MA-9 is designed to be replaceable. It contains 12.5 feet of 3M Type 428 "Instrument Grade" recording tape. - The tape moves at 4.5" per second, dots are 3.3 ms, and dashes are 10 ms. - Transistors in the KY-468 are 2N207, 2N492, 2N884, 2N799, 2N887 (SCR), and 2N1377; a total of 13 transistors and 1 SCR. - The MX-4498 contains a converter for changing 6.3 VAC into 12 VDC. Notes on the GRA-71 (from Bill Howard): As to the AN/GRA 71 Code Burst Transmitter. I first came in contact with these sets when the 100th MTC in Louisville, Ky put on a training exercise for the Ranger Infantry Company in Pontiac Michigan in the late 1970's. Each patrol was equipped with an AN/GRA 71 and was at a separate table. The controller put out various models such as tanks, railroad tracks with a train, etc. The patrol had to observe, click out a message and at specified times, transmit the message (probably used PRC-104's). This was received at the company on a special receiver, decoded, and the information transmitted to the Corps G2 (that was me). We then posted the information to the situation map and at pre-determined times, we conducted a "briefing for the Corps Commander" and allowed the patrols to observe the briefing. They all learned how critical their information was to the intelligence effort. I wes interested in the AN/GRA 71 and wrote to the manufacturer, Stenographic Machines. They wrote back that they were the original maker and when the contract was put out for bid for a second batch, Stenographic Machines was not the low bidder. They were kind enough to send me a copy of their instruction manual with the caveat that it was protected property and could not be copied or reproduced. They also said that from time to time, people found parts of the set in flea markets and wrote to them asking for information or repair parts, etc. of which they had none. Compiled by: Pete McCollum 3810 Whisper Hollow Dr. Colo. Springs, CO 80920 719-548-3525 MCCOLLUM@SSDEVO.ENET.DEC.COM ----------------------------------------------------------------------------------------------
    Further Comments; The price & NSN number information Pete includes above, is quoted from Ref.#1, which also includes a price of $1007 for the completed set, & notes sales to both the Department of the Army, & Navy. This is also the source for the water pressure test figures. The GRC-109(A) defers from the standard model mainly in the case as Pete describes. This (A) is usually referred to as "Armored Plated" because the difference does not stop with it's hasp fasteners, nor the carry handle. The case thickness of the (A) models is much thicker than that of the early variant, with a corresponding added weight. It is this added weight that makes the set less desirable. At least on some variants of the (A) model, the lids are not made of cast aluminum, but a high impact plastic or bakelite type material. Additionally, the (A) models set's have the code burst capability without the need of the MWO. While Pete's comments on the clandestine purpose & use of the GRA-71 are indeed true. This was not the primary mission of the set as it applies to use by the military. Here, the goal was frequency congestion, & conservation. To better understand this problem an understanding of the general SOP of isolated base camps in Vietnam. In Ref.#2 the writer describes his duties as a Special Forces radioman, & tells us something of their communications plans & operations. It was required to make twice daily reports of the camps activities, the morning began with a transmitted weather report, & reception of any incoming traffic, in the afternoon Situation Report(sitrep), in these most the activities of the day were reported, including any enemy contact(which took place every day). It might also include a after action report(AAR), which would be the results of any offensive actions undertaken. All this message traffic was encrypted using "one-time pads". In the case of the sitrep, & AAR, this process could take hours. And in the event an unexperienced, fresh out of school CW operator(as most were), could take a couple more hours to complete the transmission. All this same time numerous other detachments are waiting to send their traffic, also contending with erratic propagation. So we can immediately see the advantage to being able to transmit an hour long message in a few minutes, regardless of the expertise of the sender. Even after the advent of SSB/voice and it's widespread destitution and use in the field, the code burst transmissions were continued into the late 70's because of the extreme difficulty in encrypting voice transmissions, the time required to submit reports, and with the impracticality of TTY systems in small front line combat units. It must also be remembered that code burst or high speed code transmissions are not a late innovation of the 50's or 60's. In fact it predates TTY, and saw widespread use in WW-II by high power stations before the advent of TTY. Today, front line units use notebook computers & packet to effect these same ends. Starting only a couple years ago, the fazing out of all TTY systems began, with their replacement mode being Packet. Ref.#1 also list a cost to the Army for the GRA-71 as $759.14. A second model is also shown as the M2000 also built by the Stenograph Corp, at the same price. Lastly, it was most likely the PRC-74, & not the PRC-104 that Bill remembers the training exercise with, past conversations with him on that subject support this conclusion. Dennis Starks; MILITARY RADIO COLLECTOR/HISTORIAN military-radio-guy@juno.com Referances; #1) Federal Logistics Data on Compact Disk(Fedlog) 1995. #2) Tan Phu, Special Forces Team A-23 In Combat, By Leigh Wade ***************************************************
    GRC-109/RS-1; What, Why, When, Where Part III, History ? by Pete McCollum Dispelling The Myths, Part I, by Dennis Starks Foreward, The below account, though very interesting, is full of inaccuracies that are commonly believed by most persons with an interest in the GRC-109/RS-1. Though they are for the most part minor ones, they do tend to minimize the greater, true story, I/E Truth is greater than Fiction. Pete's material is presented because it is the most widely believed. At the end of his account, I will attempt to show the true origins of the set, & more accurately date it's service in our history. Please keep in mind that much of the information Pete presents here is accurate, & that only those topics address in the closing segments "Dispelling Some Myths" need clarification. I have included at the end of this story, all the reference material that this data has been compiled from so that the reader might determine for himself what is true & what isn't. While I had intended to conclude this series with this segment. It became evident about half way through that if all the references were listed, & all the evidence was presented, the material was too long for a single post. Future chapters will attempt to exactly date the entrance of the RS-1 into military use, then the GRC-109. And maybe a closing with some of the heart wrenching stories that can be attributed to the GRC-109 & it's life saving contributions to history. Or at least re-writing it's history the way it should be, you deside. Save this issue, and keep it handy as there will be constant reflections back to it. Dennis Starks ------------------------------------------------------------------------------------------------------------
    Part III, History ? The RS-1 was developed for CIA use around 1950 or so, and was used extensively in S.E. Asia. The U.S. Army's Special Military Intelligence Activity issued the RS-1 to agent handlers in Vietnam, starting in about 1961. Agents used letter drops to communicate with their handlers, and the handlers used the RS-1 to communicate with bases in Saigon, Hue, and Ban Me Thuot. Some agents used small commercial receivers to monitor broadcasts from their handlers. In late 1961, the CIA organized a number of 12-man Special Forces teams to work with Montagnard tribesmen, and used the RS-1 for communications. The Army's chief signal officer arranged for the RS-1 to be adopted for military use and renamed the GRC-109. The GRC-109 was never adopted for Regular Army use, probably because the transmitter was CW only. By late 1962, this Special Forces net had 24 stations. The '109 set in each "A detachment" SF camp was kept in a sandbagged bunker, with several antennas installed. The antennas were a target of Viet Cong raids, but for emergencies, they found that a longwire buried 18" underground in bamboo pipes could be used. Even though Special Forces had access to the latest high-tech radios, by the mid-1970's many units had adopted the GRC-109 as their primary long-range radio. It was rugged, reliable, and maintainable in the field. Estimated dates are as follows: RS-1 1950-1962 GRC-109 1962-1969 GRC-109A 1969-1973 Compiled by: Pete McCollum 3810 Whisper Hollow Dr. Colo. Springs, CO 80920 719-548-3525 MCCOLLUM@SSDEVO.ENET.DEC.COM Some of the above info was gleaned from "Military Communications: A Test For Technology". ----------------------------------------------------------------------------------------------------------

   DISPELLING THE MYTHS; Part I In the above account, Pete's material has been obtained from two basic sources, references #3, & #8(see below). Both these references contain inaccuracies, or in the case of ref.#3 quotes taken out of context becoming inaccurate. To get a compete, accurate picture of the lineage, & history of the GRC-109/RS-1 MANY sources must be combined. And in the case of ref.#8, unfounded material can be presented without do research that will cloud history for ever. After such inaccuracies are published it takes a near act of God to let the real truth be known. Ref.#3 can be described as our bible of communication equipment, procedures, & general history for the time period it covers, and I most highly recommended it. But as with the Bible, you cannot confine yourself to this passage or that, rather the entire thing must be absorbed before a thorough understanding can be had. Also it must be remembered that ref.#3 is an official U.S. Government document, & as such many things were omitted or slightly modified at the time of it's compiling do to the classified nature of some of the subject matter. Ref.#8, if you like pictures, this & other publications by that author are OK. But the author of this material has related to me several times,"I know nothing about radios or technology" and this is obvious in his descriptions, comments, & dates. In ref.#7, I expressed the great difficulty sometimes encountered in trying to date equipment, I named the GRC-109 specifically. Also I have made the past statement " I don't get all my information from one book, but hundreds of books. I don't get my historical references from one person or his war story, but hundreds of people & their stories. These are all combined to get a greater more accurate account." You will all now see why. IN THE BEGINNING: The Myth, The RS-1 was not developed around 1950 for CIA use. It's development began before the end of WW-II, originally for the OSS, and with a specific application in mind. Pete's material in this case is taken directly from ref.#8. In the following I will attemp to disproove this myth, and I think you will all agree, and have a greater respect for this set after you've seen the evidence, and know the real truth. The Clues, #1) First and most obvious to any person that has ever opened up a RS-1,or GRC-109. The technology used in these sets is of mid/late WW-II vintage. #2) In ref.#3(remember that one! it's our bible!) the statement is made, "The first U.S. Special Forces teams deployed to South Vietnam had to use models of an agent radio used by the Central Intelligence Agency [since World War II]". Pete used this same reference material, but must have neglected to read the entire book, being content instead to just look up RS-1 & GRC-109 in the index. #3) In ref.#2, the author describes the GRC-109, "This radio had originally been designed during the later part of WW-II especially for guerrilla warfare applications". Remember that word "guerrilla". #4) In ref.#6, the author describes a receiver that perfectly matches that of the RS-1, & it being the results of devepoments made by their WW-II OSS R & D team, and is not known to exist elsewhere.. The Evidence, During WW-II, special operations (combat) groups were supplied with equipment designed with goals sourly unsuited to their needs & the environment they would be used in. These included such famous suitcase types as the PRC-1, & SSTR-1(much later, if at all) which had been developed with one major objective in mind, effectiveness with maximum conceal-ability. Though they were most effective for their intended purpose, their short comings for the job at hand were immediately apparent.(ref.#5,#6) The most famous of these groups were OSS Detachment 101, and Merril's Marauders, which later became Galahad. The operational theater of these particular "guerrilla" units was the jungles & mountains of Burma, described by Winston Churchill as "the most formidable fighting country imaginable" . The advantages, of concealment in a suitcase or loaf of bread under these conditions can be readily observed. However other equipment available to them was equally unsuited for use by these relatively small commando units. This would include the TRC-2, TRC-10, & SCR-284, etc, all of which when provided with all the components of a system, where too large, heavy, and still only marginally capable of surviving such a harsh environment. Actually, the PRC-1 could be described as a stripped down, repackaged TRC-10.(ref.#4,#9,#10) There is a lot of dogma, no, bill shit running around about the radios the above units used, as perpetuated by one noted author/expert. But it is not within the purview of this article to dispell those, one myth at a time please! Suffice to say, what they had was either too fragile or too big & heavy. They needed something better, smaller, lighter, & tougher than what they had available. Inter the RS-1, surely not designed to be concealed in a loaf of bread, or suitcase, not much need to be water tight at 7.5psi. It fits none of those design requirements so arduously arrived at by those early pioneers. No, it had a different intended role in life, one born from the hard won experiences of their commando/guerrilla units in combat. The Proof, While alone, the below evidence would not be conclusive of anything, but when combined with the above, what we've learned in the last week, & common sence. I think you'll all agree. "A note on RDR: Some RS-1 sets have a small "RDR" stamped in the middle of the larger knobs. Should I assume it's the same outfit?" The above was received from Pete shortly after posting the SSTR-1 series. Remember RDR? They are the company involved in the development & at least small scale manufacturing of the SSTR-1, among other sets, for the wartime OSS. Remember this from ref.#5? "RDR and Irving Weiss continued to serve as one of our contractors, and [helped develop late equipments]" Or this from ref.#6? "design which kept the tuning capacitor and coils all on one sub-assembly for greater stability. Also, the range was increased, tuning 2 through 24 mhz or thereabouts." Nothing in war time or even postwar inventory, either of the OSS or any military group matches the above description, other than the RS-1! While I do not believe it was used during WW-II, the possibility does exist. I do believe it was born out of lessons learned, & later used after the war exactly as the PRC-6, GRC-9 and many others were. Some of you might think I'm splitting hairs here, what's the difference "developed 1950" or during WW-II? If you can't see the difference already, I can't explain it. Dennis Starks; MILITARY RADIO COLLECTOR/HISTORIAN military-radio-guy@juno.com Referances; #1) Federal Logistics Data on Compact Disk(Fedlog) 1995. #2) Tan Phu, Special Forces Team A-23 In Combat, By Leigh Wade #3) Military Communications: A Test For Technology, The U.S Army in Vietnam, by John D. Bergen, CMH Pub 91-12 #4) Military Radio Data, Vol. I, PRC Designated Radio Equipment, by Dennis Starks #5) Military Collector Group Post, Nov.25/97: The SSTR-1; From the Horses Mouth Part II, Reflections Concerning The SSTR-1, By Dean Cortright #6) Military Collector Group Post, Nov.26/97: The SSTR-1; From the Horses Mouth Part III, Further Reflections Concerning The SSTR-1, By Dean Cortright with editorial comments by Dennis Starks #7) Military Collector Group Post, Backmail #29: AN Type Numbers Versas RT Type Numbers, & Some URC Questions, by Dennis Starks #8) CIA Special Weapons & Equipment, by H. Keith Melton. #9) Time Runs Out in CBI, by Romanus & Sunderland, CMH Pub 9-3 #10) The War Report of the OSS, by Kermit Roosevelt #11) Vietnam, A History, The First Complete Account, by Stanely Karnow *******************************************************
    GRC-109/RS-1; What, Why, When, Where Part IV; Dispelling The Myths, Part II, by Dennis Starks Part III of this series left off with a more accurately date of the inception of the RS-1, thus pushing back it's actual use in the field by at least four years. The next significant date in it's time line is as follows from Pete's account, "The U.S. Army's Special Military Intelligence Activity issued the RS-1 to agent handlers in Vietnam, starting in about 1961", and is followed by, "In late 1961, the CIA organized a number of 12-man Special Forces teams to work with Montagnard tribesmen, and used the RS-1 for communications". All originally from ref.#3, & included in ref.#12. Before we look into these dates, let's first take a look at the time line of U.S. involvement in Vietnam. 1945, *Early in the year, operation "Deer" began with an OSS team para-shooting into North Vietnam to provided assistance to Ho Chi Minh's guerilla activities. Had the personal sentiments & reports of these men been heeded in the United States, the next 30 years could have been avoided.(ref.#3,11,13) 1947, *The "Marshal Plan" is born. *France ask's for & receives permission to use both WW-II, & NATO U.S. lend lease equipment in Vietnam.(ref.#11) 1949, *$15 million U.S. dollars are earmarked for use by French forces in Vietnam. By 1953, $2 billion had been spent. *A $75 million dollar Presidential "slush fund" is created to support clandestine activities in Indo China.(ref.#11) 1950, *Eight U.S. C-47 transport planes are despatched to Vietnam.(ref.#11).*The U.S. establishes the "U.S. Military Assistance Advisory Group, Indo-China" to monitor the distribution & use of U.S. materials to the French. *3500 radio sets, along with advisers are sent. *Saigon ACAN station is installed. (ref.#3) 1951, *France receives more American transport planes & equipment.(ref.#11) 1953, *The French accept $500 million in U.S. funds to continue the struggle.(ref.#11) 1954, *By this date U.S. had spent over $2.5 billion to finance the French effort. *American aid to France now amounts to 80% of their expenditures. *Captain James McGoon "Earthquake McGoon", is one of two Americans killed at Dienbienphu, while flying supplies in an unmarked U.S. transport plane to French forces. *Millions of Vietnamese refugees, mostly Catholic, are evacuated from North Vietnam, handled by the U.S. Navy.(ref.#11) *$300 million in U.S. funds are provided to the Diem government. *American Advisory Group Begins to train & advise Vietnamese forces.(ref.#3) 1955, *The French begin to withdraw from South Vietnam do to dissatisfaction with what they consider insufficient U.S. financial aid. *U.S. Military Assistance Advisory Group, Cambodia is formed. *Direct aid to the Saigon government is well underway.(ref.#3,#11) 1956, *In April, the French withdraw from Indo-China is completed along with all the best American Assistance equipment. *U.S. Military Assistance Advisory Group, Vietnam is formed, replacing the old "Indo-China" Group. (ref.#3) *350-man Temporary Equipment Recovery Mission(sent to salvage radio equipment left behind by the French) act covertly as advisers to the South Vietnamese Army.(ref.#3) *Michigan State University is contracted to train, advise, & equip the Civil Guard.(ref.#3) 1958,*The U.S. supports the new Anti-Communist government of Laos. (ref.#11) 1959, *Major Dale Buis, & Master Sergeant Chester Ovnand are killed by communist guerrillas at Bien Hoa, thus beginning the "Vietnam Era". (ref.#3,#11) *As a result, over 230 commercial SSB transceivers are ordered to provide voice communications linking these far flung adviser detachments, useable by themselves being unskilled in CW.(ref.#3) 1960, *The Village & Hamlet Radio System is began, augmenting systems set up by Michigan State. *The commercial SSB radios ordered as a result of Bien Hoa are installed, until this time communications were maintained with nine CW base stations.(ref.#3) 1961, *Combat troops are deployed to South Vietnam disguised as advisers.(ref.#11) *Civilian Irregular Defense Group Program is begun.(ref.#3) 1962, *American Military Assistance Command is formed, advisers now number 12,000. Strategic Hamlet program begins picking up were Michigan State University left off, further implementing the Village & Hamlet Radio System . *The "Hay Day" of the GRC-109 begins. (ref.#2,#3) 1963, *Control of Special Forces & their base camps is transferred from the CIA back to the Army.(ref.#2) *$500 million dollars is spent this year, American advisers now number over 15,000.(ref.#3) The above is presented to illustrate the long time evolvement of the U.S. in Indo-Chinese affairs. By way of financial, clandestine, & "Military" aid. In the following, the reader must remember several things. CIA operational control of U.S. Army Special Forces did not begin in 1961 with the Strategic Hamlet Defense program. In fact the entire concept of Special Forces was conceived by the OSS MANY years before. As such it is ludicrous to believe that use of the RS-1 began with these Special Forces "A" teams in Vietnam. Beginning in 1949, both CIA, & "Military" Intelligence networks had been set up and in operation in Indo-China, this includes Vietnam, Cambodia, Laos, Thailand etc. And at various times, & places, these were not just clandestine Intelligence networks, but actually engaged in training, advising, & combat(though the later not officially). What do you think they were using for communications? Reading the above time line, with a little common sense should answer that question. The RS-1! Heres just a small bit of evidence that can push back the date of Army use of the RS-1. While I was on my hamfest tours, putting on displays last year, a long time acquaintance, Wayne(N0TE) noticed the GRC-109 I had on display. Wayne had been a long time Civilian Employee of the Army, though getting much info out of him about his job capacity has been fruitless, I have been able to pry from him the fact that he's been stationed all over the world in close proximity to various Special Forces activities. Upon seeing the GRC-109 he became quite talkative telling me of his using the set one time. This was while on maneuvers with a unit of the Kansas State National Guard in 1960. This particular unit was a reserve detachment of Special Forces. He had been forced into the job of the units signalman. He could not tell me if the radio he used was an RS-1, or a GRC-109 but that s doesn't really make any difference. The important point is, it was in the hands of a "reserve unit in 1960". One that was still being issued M1 Garands, 1903 Springfields, & BAR's. It should be noted that reserve unit's, especially Nation Guard units, are only issued equipment WELL after regular Army units have been supplied with them, along with quantities of extras. So then the RS-1 must have been in widespread use long before this time. In contrast, reserve units were still being issued PRC-6's,10's, GRC-9's, & 109's in 1970(& later), five years after their replacement began in regular Army units by the PRC-25, 77, 74 etc. In ref.#3,#12 we find, "The U.S. Army's Special Military Intelligence Activity issued the RS-1 to agent handlers in Vietnam", Pete's date of 1961 is derived from a report submitted on that date that describes MI activities UP TO THAT DATE. These activities were on-going long before then. Then we see in Pete's account (ref.#12) " The Army's chief signal officer arranged for the RS-1 to be adopted for military use and renamed the GRC-109"(this took place in approx 1962), the later quote is both incomplete and inaccurate, it should have included "The Army lacking a lightweight, patrol radio"(ref.#3). Even with this last part added, the statement is inaccurate, the signal officer did not arrange to have the GRC-109 adopted for this purpose, it is obvious the set was and had been in use by the Army for many years. The reason the RS-1 was officially adopted, & given the standard AN type designation of GRC-109 is because this action greatly simplified the already horrendous, yet growing supply and logistic problems associated with it's support, and that of thousands of other items of equipment. And it cleared the way for larger quantities of the set to be acquired & supported. If you'll note, the GRC-109 was adopted BEFORE operational control of Special Forces in Vietnam was transferred back to the Army(1963). "The GRC-109 was never adopted for Regular Army use, probably because the transmitter was CW only." This statement from ref.#12 contains a quote from ref.#3, along with the last added comment by Pete (the author of ref.#12). Included in the last Part II of this series was an explanation of the use of the GRA-71 code burst generator as it applied to the military, there was also a personal account of it's use in the late 70's. All involved the use of CW, thus the inaccuracy of the author's comment can readily be seen. The quote from ref.#3,(The GRC-109 was never adopted for Regular Army use), and included by Pete in his account cannot be explained. But it is wrong! In this part of our series, I have made an attempted to show the long time connection of the RS-1 with the U.S. Army, and the real purpose of it's official adoption as the GRC-109 which merely simplified continued use. The next & final segment will attempt to document the further exploits of the radio in the hands of our military. And provide some more proof for the speculation I've presented here. Dennis Starks; MILITARY RADIO COLLECTOR/HISTORIAN military-radio-guy@juno.com Referances; #1) Federal Logistics Data on Compact Disk(Fedlog) 1995. #2) Tan Phu, Special Forces Team A-23 In Combat, By Leigh Wade #3) Military Communications: A Test For Technology, The U.S Army in Vietnam, by John D. Bergen, CMH Pub 91-12 #4) Military Radio Data, Vol. I, PRC Designated Radio Equipment, by Dennis Starks #5) Military Collector Group Post, Nov.25/97: The SSTR-1; From the Horses Mouth Part II, Reflections Concerning The SSTR-1, By Dean Cortright #6) Military Collector Group Post, Nov.26/97: The SSTR-1; From the Horses Mouth Part III, Further Reflections Concerning The SSTR-1, By Dean Cortright with editorial comments by Dennis Starks #7) Military Collector Group Post, Backmail #29: AN Type Numbers Versas RT Type Numbers, & Some URC Questions, by Dennis Starks #8) CIA Special Weapons & Equipment, by H. Keith Melton. #9) Time Runs Out in CBI, by Romanus & Sunderland, CMH Pub 9-3 #10) The War Report of the OSS, by Kermit Roosevelt #11) Vietnam, A History, The First Complete Account, by Stanely Karnow #12) Military Collector Group Post, Dec.1/97, GRC-109/RS-1; What,Why,When,Where, Part III, History? by Pete McCollum #13) The Secret Story of the OSS, author I forget. **************************************************************
    GRC-109/RS-1; What, Why, When, Where Part V; Dispelling The Myths, Part III, by Dennis Starks Included in last part of this series was a lot speculation into the use of the RS-1 by the military attempting to push back their offically desclosed usage dates. And concluded with a rebut of the statement "The GRC-109 was never adopted for Regular Army use".(ref.#14) I contend that he RS-1 had been in use by the Army for a long time, & that it's adoption as the GRC-109 was just to simplify and expand it's continued use. I will here attempt to present some evidenced to prove this speculation, & disprove that final statement. Also I will show evidence towards the long standing connection of RS-1 with the military both before & after 1961, and it's re-designation as the GRC-109. To conclude the series, there is also contained here some of the documented historic accounts of the GRC-109, I truely wish there were more. ---------------------------------------------------------------------------------------------
    "The GRC-109 was never adopted for Regular Army use". NOT! (ref.#3,#12,#14) Let's look at the manuals, TM11-5820-474-14, May 18, 1962. Radio Set AN/GRC-109. Note the date on this manual! Also that it contains 6 changes already. The official adoption date of the GRC-109 is sometime between mid 1962, & early 1963. It would have taken some months (at least six) to compile the data, check for errors, and publish this material. This would place the adoption date no later than mid 1961, then theres the changes (4-6) that it contains which would push this date back even further. Also note that the Strategic Hamlet program initiated by the CIA, & utilizing units of the Army Special Forces officially began in LATE 1961(and they were using the GRC-109 then). FM24-24, May 20, 1977, List the deployment of the GRC-109 for,"Special Forces, & forward area patrols". Are we to assume that Regular Army units do not have "forward area patrols"? I'm afraid there are a lot of veterans that would fight you over this assumption! This manual supersedes FM24-19, November 1966, I do not have this issue, it would be interesting to see if the GRC-109 is listed there, & if so what it say's. FM24-24, Dec. 1983, Duplicates that material of the 1977 edition. TC24-24, Oct.3 1988 also includes a description of the GRC-109, but omits the deployment information. GRC-109 in print, Ref.#1 shows sales of the GRC-109 to both the Army, & the Navy with a set cost of $1007 dollars. Ref.#3, quote, "Since the Army lacked a lightweight patrol radio that could transmit over long distances, the chief signal officer arranged for the agency's RS-1 to be adopted for military use". Again, are we to assume that only Special Forces has long range patrols? Or a need for a "lightweight patrol radio"? Prior to 1965, sector & subsector adviser groups had been issued old but reliable HF Morse codes sets, but a shortage of qualifiad operators prompted the Electronics Command to order them new portable SSB sets then being tested by Special Forces, the FRC-93. (ref.#3) Resent History, Today we find in our collections, both RS-1's, and GRC-109's that are stenciled "SET-1", "SET-2" etc, usually up to #3, & if your lucky some unit markings. These unit markings are not always that of Special Forces units. You will also find GRC-9's and other HF radio sets stenciled in a similar fashion. 1984 began the large scale disposal of the GRC-109 by the government via DRMO sealed bids. In the Spring of 1988 a fair size lot (over 200) of just the transmitters & power supplies were auctioned, everyone wondered where the receivers were! In the Summer of 1989, we saw complete sets of both the RS-1, & GRC-109 being auctioned off in good sized quantities. It should be noted that in all these cases, the lots were composed of a Duke's mixture of BOTH the RS-1's, & GRC-109's combined in the same lots with similar quantities of each. I watched these sales transpire, powerless to participate do to a lack of sufficient funds. (for proof of this, see ref.#15) What conclusions can we draw from this? We have both RS-1's, & GRC-109's both stenciled with SET ID's, & unit markings, we also have quantities of each being sold together from the same source. We have the eye witness account of it's use by the Nation Gaurd in 1960, we also know that far flung military adviser detachments were stationed all over Indo-China, not just Vietnam, at least since 1955. Thus I would think that our conclusion would go like this: Though the RS-1 had been in use by the U.S. Army for a considerable time, 1961 saw it's official adoption as the GRC-109. This because of the extreme, & growing supply and logistics problems do to the continued military build up in Southeast Asia, combined with an ever expanding need for the set. Adoption of the RS-1, with a standard AN/GRC-109 designation greatly simplified support of the system through normal supply channels, thus insuring it's continued use in greater quantities with minimized difficulty. Existing RS-1's remained in inventory and continued to serve along side it's GRC-109 counterpart, or at least contributed to our nations strategic reserves possibly as late as 1980. I/E, the signal officer did not have the RS-1 adopted because of the need for a "lightweight patrol radio", they already had them, they just didn't have enough, or the support lines set up for more! It should be clarified that the Special Forces were not, & are not a section of the CIA. They are a part of our military structure, simply utilized by the CIA from time to time. Nor is their logistic support the responsibility of the CIA, as such CIA supply channels simply augmented those of the military at times when needed. Some More History of the GRC-109, In ref.#16, The author conducted some rather in depth interviews with radioman, and technicians in Vietnam concerning every facet of electronics being used in the war. He included in his interviews several Special Forces signalman from both "A", and "B" detachments. They reported their admiration for the GRC-109 which at the time was still their mainstay radio. They also had received a couple weeks before PRC-64's, their preliminary test with the radio were favorable in CW, but phone had not been tried, reports from higher echelons were more glowing. Some units had also begun to receive PRC-74's(formerly the Huges HC-162D), complaining about it's weight & the battery it used. Other radios reported on in the hands of these units were the URC-11 for fighter strike control, PRC-25, FRC-93(Collins KWM-2A), HT-1, TR-20, plus the GRC-26 in the "B" detachments. It can be seen that the conditions, and equipment in these "A" camps had improved considerably since 1963 as reported in ref.#2, when only the GRC-109, HT-1, TR-5, & the PRC-10 were available. By early 1966 the prevalence of voice FM and SSB radio is the theater began to adversely affect the CW proficiency of signalman. Determined that such a fate not befall Special Forces signalmen, their radio officer, Maj. Anthony J. Scibilia, required that the net to the "A" detachments be operated during certain hours on Mores code equipment only, the remainder of the day, new SSB voice radios could be used. When in March 1966 a large North Vietnamese force attacked the A Shau Special Forces camp in I Corps, Major Scibilia's concern proved prescient.(ref.#3) Having lost communications and power facilities except for a single GRC-109, and a hand-crank generator when the enemy overran a section of the camp, the camp's radioman had to send out his distress call by Morse code. For two days, as relief forces fought their way to the camp, only the uninterrupted reception of Morse code transmissions monitored by the "C" detachment in Da Nang enabled the relief forces to ascertain that the 200 American, and South Vietnamese soldiers in the beleaguered camp were still holding out.(ref.#3) Is your GRC-109 still just a really neat little black box? Or is it, as I have said many times, a physical part of our history? Is it yet apparent why we must know every little detail about the use of this equipment? The following was included in Pete's account(ref.#12), it is entirely correct, and compiled from the same source, he just left out some of the best parts. To maintain their flexibility, the Special Forces took the radical approach of scrapping high-performance technical equipment for it's less efficient predecessor. Throughout the Vietnam War, the Green Berets were issued a succession of sophisticated long range portable radios to meet the special needs of their far flung teams. But by the mid-1970's many Special Forces units throughout the world had adopted as their primary long-range radio the 1950's-vintage Morse code set they originally took to Vietnam. The radio was sturdy and simple to repair. Most important, it would work with a variety of power sources, including a hand-crank generator. (ref.#3) To understand the plight of these Special Forces teems with regard to this "succession of sophisticated" equipment, the reader must understand the that traditionally Special Forces have been our test bed for new fangled, experimental gadgets, as was first outlined by me in ref.17. These gadgets never had the logistic support needed to keep it operational in the field nor was it repairable by anyone other than the engineers that developed it. Nearly all required the use of special batteries which couldn't be obtained, and no alternate power source could be had. None were repairable under combat conditions even after completion of their experimental stage, and adopted as standard items. All this time, their lives depended on the precarious operation of this equipment. Thus the "old reliables" were kept around long after their gross obsolescence, just in case. I most sincerely hope that this series has presented to you enough information on these most noted radio sets, that you might truly appreciate their contribution to us, our history, and those men that used them, keeping their stories along with our history alive. Dennis Starks; MILITARY RADIO COLLECTOR/HISTORIAN military-radio-guy@juno.com Referances; #1) Federal Logistics Data on Compact Disk(Fedlog) 1995. #2) Tan Phu, Special Forces Team A-23 In Combat, By Leigh Wade #3) Military Communications: A Test For Technology, The U.S Army in Vietnam, by John D. Bergen, CMH Pub 91-12 #4) Military Radio Data, Vol. I, PRC Designated Radio Equipment, by Dennis Starks #5) Military Collector Group Post, Nov.25/97: The SSTR-1; From the Horses Mouth Part II, Reflections Concerning The SSTR-1, By Dean Cortright #6) Military Collector Group Post, Nov.26/97: The SSTR-1; From the Horses Mouth Part III, Further Reflections Concerning The SSTR-1, By Dean Cortright with editorial comments by Dennis Starks #7) Military Collector Group Post, Backmail #29: AN Type Numbers Versas RT Type Numbers, & Some URC Questions, by Dennis Starks #8) CIA Special Weapons & Equipment, by H. Keith Melton. #9) Time Runs Out in CBI, by Romanus & Sunderland, CMH Pub 9-3 #10) The War Report of the OSS, by Kermit Roosevelt #11) Vietnam, A History, The First Complete Account, by Stanely Karnow #12) Military Collector Group Post, Dec.1/97, GRC-109/RS-1; What,Why,When,Where, Part III, History? by Pete McCollum #13) The Secret Story of the OSS, author I forget. #14) Military Collector Group Post, Dec.8/97, GRC-109/RS-1; What, Why, When, Where Part IV; Dispelling The Myths, Part II, by Dennis Starks #15) Fair Radio Sales catalogs, WS-84 catalog supplement, WS-88 Summer catalog supplement, WS-89 Fall catalog supplement. #16) Magazine article, Electronics Magazine, May 16 1966, Vietnam Electronics in the war, by John F. Mason. #17) Military Collectory Group Post, Backmail #29, TRC-77,Good Radio,Wrong Time. by Dennis Starks ***********************************************************
    RS-1/RS-6/GRC-109; Serial Number Info Pete has been collecting serial numbers of RS-1's, RS-6's, GRC-109's for some time, along with some misc other data. This all to further attempt do document the origins, use etc, of these sets. If you have any of the above, it would be nice if you'd jot down all the serial numbers & manufactures data they contain, & send them to him at the address below. He will also send you the data he has thus far compiled on request. Thanks, Dennis Send info to: Pete McCollum 3810 Whisper Hollow Dr. Colo. Springs, CO 80920 719-548-3525 MCCOLLUM@SSDEVO.ENET.DEC.COM

 
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