From Your Friendly Neighborhood Militia

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Over the transom (edited for PERSEC) this morning:

We got this from an allied unit in [DELETED]. We upgraded and changed to suit our needs. Every Militia unit, NPT, CRT, or Group of Rugged Individualists should be able to build one for the cost of a good rifle.

I have attached a copy of the blueprint for the radio and antenna. It is fairly simple to build.
The PDF plan are for a 2 meter model that works with 2 meter ham and FRS/GMRS radios.
(Baofeng etc). It is versatile and very robust.

Our version is a bit beefed up and I replaced some parts as listed below. Feel free to reply with any questions. Use as you see fit.

Local version: FRS-GMRS/ 2 meter/ 6 meter/ 10 meter.

Swapped the 2 meter radio, for a quad band 10 meter – TYT-TH-9800-Mobile-Radio-Quad-Band

Swapped the 2 meter antenna for a quad band antenna – OPEK-HVU-200-4-Band-Antenna

Swapped the small battery for a solar generator – Yeti 150

Added a solar panel – Goal-Zero-Nomad-13-Watt-Portable-Solar-Panel

Replaced the plastic ammo box with a larger metal ammo can – 40MM-ammo-Can

Antenna Mast kit, cables, connectors and guy lines are the same or similar.

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8 responses to “From Your Friendly Neighborhood Militia

  1. Does the antenna break down to fit in the ammo can?

  2. 1. TH-9800 pulls 8.5 Amps on transmit at full power.
    2. Yeti 150 has a 14Ah battery.
    3. You’ll have about an hour’s worth of transmit time at full power.
    4. Yeti 150 is $230. For about same price and weight you can get an AGM deep cycle battery with 55Ah capacity. You now have about 3 hours transmit time at full power.
    5. Swap the Diamond for a homebrew jungle antenna, and save some money.

  3. For a low transmit power antenna, get a discone antenna (MFJ-1866 (approx $50) or similar). One antenna, and covers a wide band of frequencies.

  4. I’ll have a post up soon regarding the homebrewed Jungle/292 wire antenna.

  5. There are three levels of output from Battery Tender brand solar chargers. This is the 10 watt version, there are 5 and 15 watt models, too. These are regulated to your battery’s charge level, so they won’t overcharge them.

    http://www.amazon.com/Battery-Tender-021-1164-Solar-Charger/dp/B004Q86JJ8/

    Also, you can download a very thorough explanation of batteries and charging them from PowerSonic. Look at their literature menu.
    http://www.power-sonic.com

    I”ve used their Sealed Lead Acid (SLA) batteries for a long time, very good product.

  6. Electronics and connectors are subject to corrosion when AGM battery vents inside a sealed box (and they do when cycling). Remove battery to charge or for storage. If upgrading to bigger battery, get a separate carrying box. Solar trickle charge is good for battery longevity as well as providing somewhat extended run time. Listen lots, transmit little.