Loggings > North American Shortwave Pirate
AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
Charlie_Dont_Surf:
0142 - ID and transmission schedule by YL with slight German accent.
0143 - Suddenly off mid-song. Nice audio, while it lasted.
Dick Weed:
Sounded excellent from the little bit I could scoop up. Big s9 peaks but lots of deep fading here and then poof. Nothing.
Pigmeat:
Was the broadcast itself in AM Stereo or were they just id'ing as such? There used to be a legit AM stereo station in Eastern North America that used 1620.
Shortwave_Listener:
--- Quote from: Pigmeat on June 09, 2023, 0442 UTC ---Was the broadcast itself in AM Stereo or were they just id'ing as such? There used to be a legit AM stereo station in Eastern North America that used 1620.
--- End quote ---
It sounded like a relay from a station called Music Radio on 1620 AM Stereo. I googled that and found nothing, maybe a part 15? I didn’t try using AM Stereo, but I did notice the signal was 18 kHz wide and I don’t remember hearing that transmitter before.
Recording: https://youtu.be/IoKx-TBuYKQ
nitroengine:
On the KiwiSDRs, press the SAM button until it cycles to QAM. QAM is the C-QUAM AM-stereo mode on the Kiwi. Also, if you zoom all the way in on the waterfall, you'll be able to see the ±25Hz pilot tone if a station is broadcasting in C-QUAM AM-stereo. However, unlike FM stereo, the pilot tone is technically not required for AM-stereo to work, except standalone radios without a "forced stereo" decoder won't decode without it.
For example, here's 540 WXYG who currently broadcasts in C-QUAM AM-stereo.
In the chance any of you folks ever hear a pirate claiming to be using "Kahn" or "Kahn-Hazeltine" AM-stereo, switch the Kiwi to SAS mode. I have yet to hear a pirate doing Kahn.
For those using your own SDR, there is one SDR application that will decode C-QUAM AM-stereo: http://www.sodirasdr.de/
It can also be used as a separate decoder application if you input an IQ signal from your normal SDR software or recording via virtual audio cable.
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