Step-by-step
From TARPN Wiki
These are the high level steps to build your very own 1-port TARPN node. Some steps link out to a more detailed guide, since this page is your one-stop overview.
- Build or buy a NinoTNC (about ~$40 in parts)
- Buy the PCB on Etsy, and necessary components. Then follow these detailed construction steps.
- Or ask if you can buy an assembled NinoTNC from an existing TARPN member, who often have spares.
- Acquire an appropriate VHF or UHF radio
- Any VHF/UHF radio can be used so long as you can buy or make an audio/PTT connection cable for it (see this homebrew Kenwood cable). Even a basic Baofeng UV-5R can be used with a homemade cable, though it's limited to 5 watts. The radio suggestions below are higher power.
- Most TARPN members buy inexpensive used commercial radios by reprogramming them for ham radio frequencies.
- Here are eBay searches for some popular models known to work well with TARPN (fast PTT switching speed):
- Buy a Raspberry Pi.
- Any full-size model (not Zero or Compute Module) EXCEPT "Pi 1 Model B rev 1".
- You can see the full list of supported models.