APRS iGate

Last night I set up an Automatic Packet Reporting System (APRS) iGate to listen on 144.390 MHz for packets and report them to APRS Internet Service (APRS-IS). This is like a listening station that will improve my area APRS coverage. This can be done relatively inexpensively with a Raspberry Pi (~$35), a RTL-SDR receiver (~$26), and some opensource linux software available online. The latest RTL-SDR v3 is a capable little Software Defined Radio (SDR) receiver that can even receive to HF frequencies. For much cheaper than a standalone HF receiver, you can get the kit that includes a whip dipole, extension SMA cables, and mounting hardware. I lengthened the whips to 2m… Read More

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Being a Ham Means Figuring Things Out

A setback day today, as I finally received a USB audio cable for my attempts to use fldigi with my mac laptop (one of the few SDR programs that works on macOS). I was so looking forward to CQ’ing on my available bands with CW in an automated sense, but no luck. The USB audio cable I ordered (manufactured in Greece, no less), doesn’t seem to work. It is quite frustrating to wait forever for the requisite parts only for me to once again face the world of failure and non-support on Apple Mac computers. The ham software world is very driven by Windows software, something hams really need to… Read More

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Ham Code Guide

Spurred by the previous post, I’m using the Koch method for learning Morse code (CW). I’m attaching here a document I made back when I first became a ham in 1999 that is a quick reference for prosigns and Q-Codes. Morse is also there, but I do not recommend CW by sight, has to be reflexive by sound. A good iOS mobile app for this is Ham Morse by AA9PW. Here is my reference document: Ham Code Guide by KF6UJS.

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