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Author Topic: UNID (Brazil) 6960 AM/FM 0030 UTC 28 SEP 2022  (Read 555 times)

Offline Shortwave_Listener

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UNID (Brazil) 6960 AM/FM 0030 UTC 28 SEP 2022
« on: September 28, 2022, 0031 UTC »
S9+10 with the PY2GN KiwiSDR in Brazil. Usual poor modulation for this station. Also heard in Eastern North America.

0030 UTC-Music
0154 UTC-Escultura by Nelson Gonçalves
0158 UTC-Dolores Sierra (Ao Vivo) by Nelson Gonçalves
0204 UTC-Switched to FM!
0208 UTC-Fantoche by Nelson Gonçalves
0211 UTC-Back to very buzzy AM
0232 UTC-OFF

Nice music! Thanks whoever you are, I hope to eventually hear an ID! Recording: https://www.youtube.com/watch?v=6i_QjYl58oo
« Last Edit: September 28, 2022, 0358 UTC by Shortwave_listener »
Lucas Bandura
eQSL appreciated! lucasnerite@gmail.com
Songs are identified with Shazam if needed. I usually use KiwiSDR receivers. Reception from my QTH is using an SDRPlay RSP1A for SWL with a 40 meter band Inverted V at 40 feet. Kenwood TS-570D for ham use.
My website: https://swl7.wordpress.com/
Shortwave Radio Archive: https://www.youtube.com/@SW_Archive
https://archive.org/details/@shortwave_radio_archive

Offline myteaquinn

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UNID 6960 LSB 0030 UTC 28 SEP 2022
« Reply #1 on: September 28, 2022, 0031 UTC »
Continuous low tone signal on frequency.

Seems off at 0032 UTC.
0035 UTC: back.
« Last Edit: September 28, 2022, 0036 UTC by myteaquinn »
Northeast Ohio
Now using Shazam for song identification
myteaquinn@yahoo.com

Offline Molvania Poacher

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Re: UNID 6960 LSB 0030 UTC 28 SEP 2022
« Reply #2 on: September 28, 2022, 0054 UTC »
052- Have it here too. It's almost musical in tone, like ambient music.
All reception from this location, radio and antenna.
QTH New Hampshire (70 miles north of Boston).
Tecsun S-8800 and Kenwood R-2000, with about 135 feet of wire thrown up in the trees.
eQSLs most appreciated to molvaniapoacher@gmail.com.

Offline Pigmeat

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Re: UNID 6960 LSB 0030 UTC 28 SEP 2022
« Reply #3 on: September 28, 2022, 0055 UTC »
Whatever it is, it's undermodulated.

Offline Pigmeat

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Re: UNID 6960 LSB 0030 UTC 28 SEP 2022
« Reply #4 on: September 28, 2022, 0107 UTC »
I heard a little electric guitar when I first tuned in, but nothing since.

Offline Shortwave_Listener

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Re: UNID (Brazil) 6960 AM/FM 0030 UTC 28 SEP 2022
« Reply #5 on: September 28, 2022, 0221 UTC »
The fact that this station is able to instantly switch between AM and FM (no silence between modes) really has me wondering what kind of equipment they are using. Below is something I previously wrote about this station, with some slight modifications

This is the Brazilian station that appeared for the first time Friday night (SEP 17 in UTC). It has poor modulation and has appeared on three frequencies, 6979.8, 6950v, and 6960v kHz. On 6979.8 the carrier is easily seen on the waterfall (and drifts only a little bit) and audio is just slightly distorted. On the other two frequencies distortion is very bad and there are multiple lines on the waterfall near where a carrier should be. One of them is a carrier, but I am not sure which one it is or how the others effect the sound when listening in AM mode. It sounds very different from how I would expect it to based on the waterfall. Tuning in SSB is impossible, it always sounds weird and has a lot of buzz. I think it is likely using a homemade crystal controlled transmitter that is designed poorly. I am not sure why modulation is so much worse on the lower frequencies, maybe damaged crystals? I have added two pictures below of the modulation. I think it is worth keeping an eye out for this station.



I have never heard of a homemade transmitter that can switch modes like this, but I have also never seen ham equipment with such poor AM modulation. This is certainly very unusual. I realize now I have also heard this station in FM before but I thought I was hearing a ute. I have no idea what kind of equipment they are using but it must be different from anything I have heard of.
Lucas Bandura
eQSL appreciated! lucasnerite@gmail.com
Songs are identified with Shazam if needed. I usually use KiwiSDR receivers. Reception from my QTH is using an SDRPlay RSP1A for SWL with a 40 meter band Inverted V at 40 feet. Kenwood TS-570D for ham use.
My website: https://swl7.wordpress.com/
Shortwave Radio Archive: https://www.youtube.com/@SW_Archive
https://archive.org/details/@shortwave_radio_archive

 


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