Ammo Can Project

Discussion in 'General Technical Questions and Answers' started by KB8KLK, Feb 13, 2019.

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  1. WA7F

    WA7F Premium Subscriber QRZ Page

    Thanks. Your points are valid and the waterproof thing is one thing is on my mind. The Gator cases are only water resistant and intended for music bands, etc. Maybe there are some military surplus rack mount solutions. Fleabay has some but nothing with the shorter depth, just big two to three marine luggable sizes and I’m too old for that stuff. I use ammo cans a lot on the white water raft and they work well for many applications but rack mounting makes things a lot easier. Perhaps some rack mount rails can be fabricated into a can.

    The LiPo or LiFePo batteries are for semi-portable fields operations. For mobile it’s an AGM lead acid battery with short leadsto the amps. There is a good simple RV solution for charging remote batteries, just can’t think of the name right now. A little Honda generator is on the list for field ops. The older 500W generators should be big enough and they can be found for a couple of Ben Franklin’s but, I’m holding out for a good deal on the plastic 1 kW model.

    By the way Lithium Iron Polymer batteries are a great technology. They are about half the weight of lead acid and the discharge curve is very flat. They are also safer than LiPo but most LiPo issues are user induced and they aren’t nearly as unstable as the media wants you to believe. I run an electric fishing kayak on a 60A/Hr LiFe Po and it runs circles around the AGM lead acid that I keep on hand for a back up. This particular LiFePo will also pull a 100 amps without issues other than a faster discharge rate. LiFePo is a seriously great technology and it will will be interesting to see what’s coming up next. That doesn’t mean that I’ll be buying a Prius or Tesla anytime soon. I’ve love my V8s and we aren’t talking GMO tomato juice here.
     
  2. KK4NSF

    KK4NSF Ham Member QRZ Page

    ;) It was a lot of fun!
     
  3. KC8VWM

    KC8VWM Moderator Volunteer Moderator QRZ Page

    You might like this DIY ammo can project...

     
    KK4NSF likes this.
  4. KK4NSF

    KK4NSF Ham Member QRZ Page

    nice!
     
    KC8VWM likes this.
  5. K6CPO

    K6CPO Ham Member QRZ Page

    I built my ammo can radio project in three cans. Two were the standard 5.56mm cans, one for the radio and one for the battery and charger. the third can is one of the smaller ones and hold accessories such as a roll-up "J" pole antenna, cord for hanging the antenna, coax, a power cable to connect the battery to the radio and a power monitor. The kit is now in it's third iteration. It was originally built with an FT-7900R. That was replaced with an FT-8900R and now the kit contains an FTM-350AR. The two 7Ah SLA batteries in the original have been replaced with a 15Ah SLA. The following pictures have not been updated to reflect the changes, but the installations were similar.

    https://johnwright.smugmug.com/Amateur-Ham-Radio/Ammo-Can-Go-Kit-Build/
     
  6. WA7F

    WA7F Premium Subscriber QRZ Page

    Nice and neat.
     
    K6CPO likes this.
  7. K6CPO

    K6CPO Ham Member QRZ Page

    Thank you.
     
  8. K9ZMD

    K9ZMD Subscriber QRZ Page

    Ooooh, now ya done it! We ain't supposed to talk about that stuff hereabouts.
     
  9. KB0MNM

    KB0MNM Ham Member QRZ Page

    I have used two different 'ammo can' sized plastic containers for two different radios: 1. Plano 'Ammo Box' was just wide enough for Kenwood TM-G707 (VHF/UHF single-band at a time and cheaper than TM-D700a ), used two thin chunks of wood and a hinge to build an "A" frame to angle the face out of the box or insulate the 7Ah gel cell from the radio when stowed. Faston(tm) terminals on the radio harness. Microphone unplugged to clear front panel for storage. Magnetic-mount MFJ-17xx series antenna carried separately. 2. Plastic upright file box for 8 & 1/2" by 11" sized file folders used to support inside mount for Motorola CDM-1450 VHF radio. Same 7Ah gel cell and room for more, yet weight gets to be a factor. Added Brute-Force Filter ( big series choke with capacitive output and protection diode ) plus Cigar lighter plug for use with vehicular power. Plastic boxes have better rust-resistance and can avoid battery short circuits- yet so can careful use of heat shrink tubing and other insulation and/or plastic eg. saran wrap. Suggestion for magnetic-mount antennas- bring your own ground-plane metal plate ie. cookie baking pan or steel (galvanized) garbage can lid for better signals where metal buildings or stadium bleachers are aluminum. This also allows SWR pre-check and tuning before escort events such as parades, road rallies, marathon walks, etc. 73
     
  10. K7KBN

    K7KBN Ham Member QRZ Page

    Of course "ammo can project". That's why it makes PROJECTiles.

    Wait ... what?
     
    KK4NSF likes this.

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