Sent first SSTV image

Using SSTV for iOS on my phone and a BTECH APRS-K1 Audio Interface Cable (albeit connected to a Kenwood TH-D74A), I just sent my first SSTV image on 145.510 MHz FM simplex. I don’t think anyone heard, but it was a proof of concept exercise. I recorded the transmission on a separate handheld, using a small voice recorder. Despite this lossy recording method, I was able to reconstruct the image pretty well using the same SSTV app. Here is the recording, give it a try with your decoder: Encoded with Scottie 1, try decoding this SSTV transmission with your own SSTV app. (here’s a media file download link) The implications of this mode are fascinating.… Read More

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Choosing the Next Rig

In my quest to find the next portable rig (I already decided), I made a comparison sheet with stats about the various rigs I was considering. Here is my portable rig matrix (including handhelds). Hopefully this list could be of help to others.  Bear in mind, I had specific goals in this rig evaluation: Portability of station setup Ease of use in multiple modes CW practice wherever I was Expansion of my amateur radio capabilities into other modes, e.g. APRS, packet, digital HF, base and mobile antenna improvement Versatility and integration with my existing setup While I was dead set on getting the Elecraft KX3 fully loaded, I decided… Read More

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Tuning SWR with an Antenna Analyzer

If you’re at all into antennas aside from your handheld rubber duck antenna, you should try to get an antenna analyzer. Here I am using a RigExpert AA-600: Before using this device, I would just go by the radio’s SWR reading (a poor display of SWR “bars”) to determine if I was close to resonance. The quad-band vertical antenna I have supposedly works with 10m, 6m, 2m, and 40cm. I never had much success with adjusting the end tip of the antenna for 10m until I started evaluating readings using the AA-600. My target frequency was 28.400 MHz for the LARC weekly 10m net, and 28.457 MHz for the SDARC… Read More

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Found a Beacon on 2m

I briefly heard someone on 10m single-sideband (SSB) saying goodbye to his QSO friend, and that he was going to tune around on 2m SSB. Although I knew 2m SSB existed, never occurred to me that now that I have an all-mode rig, I could also tune around there instead of being bound only to FM by a handheld radio. I started sweeping from 144.100 MHz and started hearing morse code at right around 144.282 MHz. I switched to CW mode and tuned further to 144.282.23: I recorded it, and was fascinated. Note, this was received while connected to my 10m dipole antenna that is pretty poorly mounted against a fence… Read More

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