HFU HF Underground

Loggings => North American Shortwave Pirate => Topic started by: DangerKitty on May 10, 2025, 0202 UTC

Title: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: DangerKitty on May 10, 2025, 0202 UTC
0202: very strong signal, with "thumping" noise -> music "Radioactivity" - Kraftwerk
0204: QSY to 6974.6; ID in waterfall

0209: YL in GG
(https://i.postimg.cc/rmdqK6j5/Screenshot-From-2025-05-09-22-08-54b.png) (https://postimages.org/)
0210: "Kerosene" - Big Black

Thank you for the program!
Title: Re: UNID 6970.6 AM 0202 UTC 10 May 2025
Post by: dxwingr on May 10, 2025, 0205 UTC
0204utc
Moved to 6974.7    Stern radio
Kerosene
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Radiouser on May 10, 2025, 0205 UTC
0204 "Radioactivity" by Kraftwerk.
Title: Re: UNID 6970.6 AM 0202 UTC 10 May 2025
Post by: Chuck54 on May 10, 2025, 0205 UTC
S7-8

0202 UTC Radioactivity by Kraftwerk
0204 moved to 6974.5

Thanks!!
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: myteaquinn on May 10, 2025, 0206 UTC
0206: Radioactivity by Kraftwerk.

(https://i.postimg.cc/28GxT3nj/Capture.jpg) (https://postimages.org/)
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: hsmith77 on May 10, 2025, 0207 UTC
0206 "Radioactivity" Kraftwerk
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: MDK2 on May 10, 2025, 0207 UTC
I've got an SIO 222 AM signal at 6974.67 AM as of 0207 UTC, music playing.
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: hflstnr on May 10, 2025, 0207 UTC
0207 - Radio activity- Kraftwerk
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Sarge94 on May 10, 2025, 0208 UTC
0207 - Radioactivity - Kraftwerk                        S9+
0209 - Kerosene - Big Black
0223 - Everything Ends - Slipknot
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: N2MLP on May 10, 2025, 0210 UTC
0208 UTC
S-9 + 10
female voice speaking  into music
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Markokpik on May 10, 2025, 0211 UTC
0207 'Radioactivity (1991 Remix)' - Kraftwerk, YL phrase & ID in D, 'Kerosene' - Big Black.

S8.  Great signal.
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: corq on May 10, 2025, 0212 UTC
Neato! My First waterfall catch! Thanks OP!

(https://i.imgur.com/AboypYv.png)

(https://i.imgur.com/qQ4cix8.png)
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Quasar on May 10, 2025, 0213 UTC
0113 S9 Getting serious QRN on my end.
0265 S9+20 over with no interference at all.
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Molvania Poacher on May 10, 2025, 0219 UTC
SINPO=55444, just wow! Stereo quality sounding audio. Amazing stuff!

219- "Sick Of You" by GWAR.
222- OM synth voice IDs and talking about signal, stereo detected, etc.
222- "Everything Ends" by Slipknot.
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: osiris on May 10, 2025, 0221 UTC
Slamming here tonight.

Sig: -50 dB
SIO: 555
Ant: G5RV
Rec: AirSpy Discovery

0221: Sick of You - Gwar
0222: ID
0225: Everything Ends - Slipknot


Thanks for the broadcast!
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: DXrafaelcolDX on May 10, 2025, 0227 UTC
 in the last weeks the best pirate signal from Northamerica listen here in Bogotá, Colombia. Thanks for the show

You can see a short video in HFU´s Facebook Page

Locator FJ24xr

At 0329 Ican received part of the waterfall
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: sternradio666 on May 10, 2025, 0234 UTC
in the last weeks the best pirate signal from Northamerica listen here in Bogotá, Colombia. Thanks for the show

You can see a short video in HFU´s Facebook Page

Locator FJ24xr
My goodness, thank you!  Hopefully you can RX the stereo signal too? Sternradio - The Wrath of Kahn! Leonard Kahn! :D
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: elburndx on May 10, 2025, 0234 UTC
Peaking at S9+40

0234 Ritual - Ghost
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: sternradio666 on May 10, 2025, 0238 UTC
SINPO=55444, just wow! Stereo quality sounding audio. Amazing stuff!

219- "Sick Of You" by GWAR.
222- OM synth voice IDs and talking about signal, stereo detected, etc.
222- "Everything Ends" by Slipknot.
Thanks for the stereo report!  It's been the most pointless labor of love. Perfecting the AM stereo system! :D
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: sternradio666 on May 10, 2025, 0306 UTC
0202: very strong signal, with "thumping" noise -> music "Radioactivity" - Kraftwerk
0204: QSY to 6974.6; ID in waterfall

0209: YL in GG
(https://i.postimg.cc/rmdqK6j5/Screenshot-From-2025-05-09-22-08-54b.png) (https://postimages.org/)
0210: "Kerosene" - Big Black

Thank you for the program!
Oh that image is pretty.  Watching the USB snap away while the LSB is doing it's own thing.  That's sex in RF.
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Andrew Yoder on May 10, 2025, 0309 UTC
Excellent signal with modern metal, etc. Because of the reminder about stereo broadcasting, I turned down the volume on my R8 & started checking KIWI SDRs. Listening now online in stereo on headphones. Very nice. I haven't listened to much stereo shortwave, just X-FM prior to this, and I'm wondering if some of the cross-channel fades might be caused by propagation and not by the stereo mix
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: sternradio666 on May 10, 2025, 0310 UTC
Excellent signal with modern metal, etc. Because of the reminder about stereo broadcasting, I turned down the volume on my R8 & started checking KIWI SDRs. Listening now online in stereo on headphones. Very nice. I haven't listened to much stereo shortwave, just X-FM prior to this, and I'm wondering if some of the cross-channel fades might be caused by propagation and not by the stereo mix
It's an ISB compatible system.  I can drop a channel for a moment or three!
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Charlie_Dont_Surf on May 10, 2025, 0347 UTC
It's an ISB compatible system.  I can drop a channel for a moment or three!

Yes, that's the only way that you would be able to do this. (That is, to have different "art" on the LSB than there is on the USB.)

(https://i.postimg.cc/rmdqK6j5/Screenshot-From-2025-05-09-22-08-54b.png)


0430 - Black Sabbath, very listenable on a midwest SDR, SINPO 44334. Not listenable at home on the left coast; I can clearly see the carrier on the waterfall but it's not strong enough for the necessary SNR.
0441 - ID and email address. Sign off music.
0446 - Checked back and they are gone.

The magic is getting the mix right for such that an envelope detector doesn't shit it pants!  There have been times where my phase relationships were all sorts of fucked and ISB stereo detectors could RX just fine, but regular AM receivers couldn't make out squat.  It's more like old time Ma Bell frequency division multiplexing with sub-carriers going on!  Maybe! :D

Oh, I see. Are you generating the artwork at audible frequencies and mixing it up to ~10 KHz or whatever? Or are you synthesizing the whole thing?
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: sternradio666 on May 10, 2025, 0408 UTC
It's an ISB compatible system.  I can drop a channel for a moment or three!

Yes, that's the only way that you would be able to do this. (That is, to have different "art" on the LSB than there is on the USB.)

(https://i.postimg.cc/rmdqK6j5/Screenshot-From-2025-05-09-22-08-54b.png)
The magic is getting the mix right for such that an envelope detector doesn't shit it pants!  There have been times where my phase relationships were all sorts of fucked and ISB stereo detectors could RX just fine, but regular AM receivers couldn't make out squat.  It's more like old time Ma Bell frequency division multiplexing with sub-carriers going on!  Maybe! :D
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Professor on May 10, 2025, 0409 UTC
0409 Excellent S9+20 signal here tonight. Thanks.
0438 "K-Pax" by Kirlian Camera
0442 OM providing email address for QSLs. Playing their traditional sign-off song, "The Great Seal" by Laibach.
0446 Churchill speech and then OTA.
Title: Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
Post by: Traveling Wave on May 10, 2025, 0439 UTC
0438 UTC - Signal is S9+ in WNY, audio is excellent tonight !
0447 UTC - Off the air.