The Legality of DMR in Amateur Radio
November 6, 2016There is a lot of confusion on whether DMR is legal to use in the amateur bands. The short answer…DMR Etiquette
September 24, 2016I have recently had a number of conversations with new DMR users wondering how to use the network without being…Subversion: Revert Previous Commit
May 24, 2016To revert to your previous commit in Subversion, you'll need the current revision number and the previous revision number, then:…KI6WJP’s APRS Weather Lookup Tool
January 24, 2016KI6WJP has written a useful APRS-IS service called WxBot. Send a message to it with a single character from your APRS-capable…Kenwood TM-D710/TH-D72 APRS Queries
December 28, 2015One feature of many APRS-capable applications and radios is that they support specially-formatted APRS messages called queries or QRU. When…Make Any Printer AirPrint-compatible on FreeBSD
December 26, 2015AirPrint is a cool technology, but what if you have printers that aren't officially supported? Here's how to make it…OpenTracker USB and Motorola Mobiles
November 8, 2015The Argent Data OpenTracker USB is a fully-featured KISS TNC - and it's one of the least expensive, clocking in…Motorola CDM – No PL/DPL on TX from External Accessory Connector
November 5, 2015If you're trying to interface an external accessory (like a Signalink) to a Motorola CDM via the rear 20-pin connector,…Debian Jessie: Run aprx as a service
November 4, 2015If you'd like to run aprx as a service on Debian Jessie, use this systemd script (in /lib/systemd/system/aprx.service): [Unit]…Raspberry Pi: Enabling Watchdog on Raspbian Jessie
October 30, 2015If you use a Raspberry Pi, one feature you may not be aware of is that it has a hardware…