11 posts tagged with Ham Radio.
a GUI and mapping tool for the Digipex network.
A library providing the complete implementattion of the KISS protocol for controlling digital radio TNC.
An APXP and APRS reference implementattion for receiving and routing digital radio packets.
An APXP and APRS reference implementation for receiving and routing digital radio packets.
A complete AX.25 v2.2 implementation.
FLEAR is an open-source and open-standards incubator for Ham Radio
TL;DR APEX, the new APRS-extended protocol, successfully running on a Raspberry Pi for Ham Radio use. We got APEX running on a Raspverry Pi today. Wonderful new addition to the shack. check_circleKey takeaways - APEX reference implementation runs on Raspberry Pi hardware - Provides a low-cost, portable APRS/APEX station for the shack
TL;DR APEX (APrs EXtended) is a backwards-compatible evolution of the APRS protocol that adds cross-band routing, preemptive routing, and a Python reference implementation, with a roadmap toward smart routing, geographic routing, and delay-tolerant networks. APEX stands for "APrs EXtended"; It will be a new protocol which expands on and fixes most of the issues in the older APRS protocol while still remaining backwards compatible. APEX defines both a new protocol and a new paradigm.
TL;DR A step-by-step guide to configuring the KAM-XL TNC for APRS on HF and VHF, covering radio settings, TNC host-mode configuration, and common pitfalls. After much frustration trying to get my old KAM-XL TNC up and working I finally got it all back up a few weeks ago. For the sake of future hackers I'd like to share the steps it took to get it all configured. 1. Buy the correct cables for your radio and hook it up.
Found this little gem on the bottom of the cradle charger for my Beofang. It reads as follows: PLACE TYPE Li-ion BATTERY CHARGER Note: Prevent cooks meals or is injured, only battery assigns carry on the charge. Input: DC 10V Output: DC 8.4V 400mA Charging The charge completes Bright trickling charge (battery stops using has been long) / the chareto mistake. I'm just going to leave this here, and remember Beofang puts just as much attention to detail into their hardware as they do their English.
TL;DR A detailed walkthrough of installing a Hustler BTV-6 multi-band vertical antenna on a city roof, including grounding, radial placement, feedline routing, and RF interference mitigation. For several years now I wanted to replace my older High Frequency antenna which had partially fallen down; it was a G5RV Jr. However it never really worked right; it used a metal mast which had detuned the antenna and after about a year it started to fall down and became completely inoperative anyway.