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  1. sigo

    Humvee Radio

    There isn’t a COMSEC card in a RT-1439, they required a separate COMSEC device such as a KY-57. 1439s are called “non-ICOM” SINCGARS, meaning they don’t have integrated COMSEC. COMSEC cards are controlled. The US military does not release them to the public. There are some in private hands...
  2. sigo

    Humvee Radio

    http://www.murphyjunk.net https://fairradio.com Stock rotates frequently at both places, but I know with Murphy you can contact him and see if he has what you need. He often has stock that isn't listed on the site.
  3. sigo

    Humvee Radio

    That radio shelf will work just fine, as will the LS671.
  4. sigo

    Humvee Radio

    Are you going to kit out your vehicle to represent a specific unit or type of unit? If you intend to be accurate in depicting a HMMWV from a certain unit at a specific time I might be able to look up what system(s) they should have had installed.
  5. sigo

    Humvee Radio

    Assuming you're going for a US Army setup any configuration of SINCGARS would be correct. VRC-88, 89, 90, 91 or 92. RT-1523C was probably the most common RT in 2004, but RT-1523E ASIP may have been out in large numbers by then. Without research of when and where E models were fielded I'm just...
  6. sigo

    Humvee Radio

    Glass, that could be a NTDR or EPLRS antenna base. NTDR is 225-450 MHz and EPLRS is 420-450 MHz. The element for an AS-3900 is almost the same diameter, but none of the three interchange. Hard to tell exactly from a distance, but if it has a part number or NSN we could tell for sure.
  7. sigo

    Humvee Radio

    TheTM 11-5820-890-10- series has at least 10 volumes. They all end in -1,2,3,4… and so on. Just google it. You'll get hits like this. PRC68.com is also good source. Brooke at PRC68 figures out how things work and posts the results so it goes beyond the TM, but it can difficult to sort out what...
  8. sigo

    Humvee Radio

    I had the opposite problem. My HHC commander uncovered piles of old VAAs at a FOB in Iraq and I had to quickly secure them lest some of our Stryker crews start using them in place of their INCs. In theater it wasn't too much of a problem, but in garrison the crews would yank all their comms out...
  9. sigo

    Humvee Radio

    Good point with the VAAs emmado. Usually not an issue with the 1523 series when using SINCGARS for voice only, but it may be an issue with 1439s and newer VAAs or INCs. W2 is the RF cable that goes from RT to amp. W4 is the RT to VAA for audio and data. ;-)
  10. sigo

    Humvee Radio

    You'll also need a vehicle amplifier adaptor (VAA). The radio will function without an amplifier. You don't need the amplifier itself, just the amplifier adaptor as pictured below. You'll need the coax to go to from the VAA to your antenna base. Either the AS3900 or AS3916 antennas and their...
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