We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Author Topic: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023  (Read 1074 times)

Offline dxbill

  • Sr. Member
  • ****
  • Posts: 470
  • Mosinee, Wisconsin
    • View Profile
AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« on: June 09, 2023, 0134 UTC »
AM Stereo 1620 ID at 0130 UTC. Nice Big S9+10 AM signal using kiwisdr in Fair Hill, Maryland. S9 on my own sdr here in Central Wisconsin. Huge wide AM signal. Great Oldies! Off in the middle of the song at 0142 UTC. Thanks for the brief broadcast! Thanks!
« Last Edit: June 09, 2023, 0147 UTC by dxbill »
SDR & Yaesu Ft-897 listener with dipole 22ft. up from Mosinee, WI

Offline Skipmuck

  • Global Moderator
  • Marconi Class DXer
  • *****
  • Posts: 11627
    • View Profile
    • Email
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #1 on: June 09, 2023, 0136 UTC »
0135 UTC A song I forgot the name of  :-[ (S9 peaks with light fading and excellent audio)
0137 UTC OM DJ with "Music radio...AM Stereo 1620", followed by Unid song-OM singer
0140 UTC Unid song-Brenda Lee
0142 UTC YL with ID
0143 UTC OFF mid-song

Thanks for the driveby test whoever! Sounded great! Here's my recording:
https://drive.google.com/file/d/1kdVeTMAm0IBvWOHaXme7khn3iz8ms9OM/view?usp=sharing

« Last Edit: June 10, 2023, 2210 UTC by Skipmuck »
QSL's to poorbrookking >at< aol.com are greatly appreciated! All reception and postings using My radio, My antenna, and generally in real time(excluding posting of SSTV images!).
QTH:Springfield, MA
JRC NRD-515 with 43 meter half wave dipole into MFJ 949E Versa Tuner: also Grove SP-200 & SONY 2010's

Offline Shortwave_Listener

  • DXing Phenomena
  • *******
  • Posts: 3240
  • British Columbia, Canada
    • View Profile
    • The Shortwave Listener
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #2 on: June 09, 2023, 0139 UTC »
Exact frequency is 6955.11 kHz. S9+30 with the K3FEF KiwiSDR. Really good 18 kHz wide audio!

0137 UTC-Music Radio, 1620 AM Stereo ID
0137 UTC-New World In The Morning by Roger Whittaker
0140 UTC-It Started All Over Again by Brenda Lee
0142 UTC-ID and schedule
0142 UTC-Unknown Music
0143 UTC-OFF suddenly
« Last Edit: June 10, 2023, 2326 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 a Kenwood TS-570D or RTL-SDR V3 with a 40 meter band Inverted V at 50 feet.
My website: https://swl7.wordpress.com/
Shortwave Radio Archive: https://www.youtube.com/@SW_Archive
https://archive.org/details/@shortwave_radio_archive

Offline Shawndx

  • Sr. Member
  • ****
  • Posts: 452
  • Winnipeg MB Canada
    • View Profile
    • AMANDX
    • Email
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #3 on: June 09, 2023, 0143 UTC »
0140 Weak music coming up over the static and some talk but could not make that out
Thanks for the show
73 Best of DX Shawn Axelrod 
All Band Radio Monitor VE4DX1SMA 
Winnipeg MB Canada
QSL's can be e-mailed to amandx@mymts.net
Drake R8/Icom IC-R70/SDRPlay RSPduo and an 155' Longwire
REMEMBER ON A CLEAR DAY YOU CAN HEAR FOREVER

Offline Molvania Poacher

  • DXing Phenomena
  • *******
  • Posts: 3204
  • New Hampshire
    • View Profile
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #4 on: June 09, 2023, 0143 UTC »
SINPO=44343

141- "It Started All Over Again" by Brenda Lee
142- YL with foreign accented English, IDs, "Keep it here, on music radio 1620," with schedule (Friday and Saturday evenings).
142- Oldies song starts, but couldn't ID before...
143- OTA.
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 Charlie_Dont_Surf

  • Hero Member
  • *****
  • Posts: 709
  • Charlie's Point, California
    • View Profile
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #5 on: June 09, 2023, 0144 UTC »
0142 - ID and transmission schedule by YL with slight German accent.
0143 - Suddenly off mid-song. Nice audio, while it lasted.
« Last Edit: June 09, 2023, 0146 UTC by Charlie_Dont_Surf »
I don't STRETCH the truth.

"Every minute I spend in this room, my signal gets weaker.
Every minute Charlie squats in the bush, his signal gets stronger."

Offline Dick Weed

  • Sr. Member
  • ****
  • Posts: 480
    • View Profile
    • Email
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #6 on: June 09, 2023, 0411 UTC »
Sounded excellent from the little bit I could scoop up. Big s9 peaks but lots of deep fading here and then poof. Nothing.
Yaesu FTDX1200/Sony 7600 GR/Malahit SDR/SDR Play RSP1
Mini Whip Active Antenna and Carolina Windom 160

Offline Pigmeat

  • Marconi Class DXer
  • ********
  • Posts: 6684
    • View Profile
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #7 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.
« Last Edit: June 09, 2023, 0445 UTC by Pigmeat »

Offline Shortwave_Listener

  • DXing Phenomena
  • *******
  • Posts: 3240
  • British Columbia, Canada
    • View Profile
    • The Shortwave Listener
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #8 on: June 09, 2023, 0504 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.

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
« Last Edit: June 09, 2023, 0519 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 a Kenwood TS-570D or RTL-SDR V3 with a 40 meter band Inverted V at 50 feet.
My website: https://swl7.wordpress.com/
Shortwave Radio Archive: https://www.youtube.com/@SW_Archive
https://archive.org/details/@shortwave_radio_archive

Offline nitroengine

  • Jr. Member
  • **
  • Posts: 59
  • Minneapolis/St.Paul, MN
    • View Profile
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #9 on: June 09, 2023, 0638 UTC »
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.
« Last Edit: June 09, 2023, 0659 UTC by nitroengine »
Receiver: Unlisted KiwiSDR configured to 3-channel wideband mode.
Ant: Homemade "Wellgood" 1m amplified loop normally kept in a fixed position (NNW/SSE) to keep 1500 KSTP in the null.

Offline Pigmeat

  • Marconi Class DXer
  • ********
  • Posts: 6684
    • View Profile
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #10 on: June 09, 2023, 0719 UTC »
WKHB, an oldies/Talk station in Irwin, PA. runs C-Quam on 620. If you're not in the area, it's a tough catch, 5.5 KW daytime, 50 watts nights. You can hear it in mono with a regular radio, but that's no fun.

I'm thinking that old 1620 AM Stereo station was from Toronto, but it's been so many years ago I can't remember?
« Last Edit: June 09, 2023, 0726 UTC by Pigmeat »

Offline redhat

  • DX Legend
  • ******
  • Posts: 1583
  • USA
  • Music is my drug.
    • View Profile
    • Email
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #11 on: June 09, 2023, 0738 UTC »
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.

As with C-QUAM, there is a pilot tone with the kahn system as well, at 15Hz, Magnavox was 5 Hz.  This would be another tell-tale of stereo transmission.
Somewhere under the stars...
Airspy HF+, MLA-30/Mini-whip/Chi-Town Loop
Please send QSL's and reception reports to xfmshortwave [at] proton [d0t] me

Offline Pigmeat

  • Marconi Class DXer
  • ********
  • Posts: 6684
    • View Profile
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #12 on: June 09, 2023, 0749 UTC »
What are you doing up, Redhat?

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 30365
  • Westminster, MD USA
    • View Profile
    • Black Cat Systems
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #13 on: June 09, 2023, 1505 UTC »
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.

As with C-QUAM, there is a pilot tone with the kahn system as well, at 15Hz, Magnavox was 5 Hz.  This would be another tell-tale of stereo transmission.

A good signal here on the SDR recording. I checked for a 15 Hz pilot tone, and did not see one.

Recording of the sign on at 0127 UTC including a gmail address, rmpotion@gmail.com ? Any better guesses? https://cdn.discordapp.com/attachments/1021029304970252350/1116745946634658013/AmStereo1620.mp3
« Last Edit: June 09, 2023, 1510 UTC by ChrisSmolinski »
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline Shortwave_Listener

  • DXing Phenomena
  • *******
  • Posts: 3240
  • British Columbia, Canada
    • View Profile
    • The Shortwave Listener
Re: AM Stereo 1620 6955 AM 0130 UTC 9 June 2023
« Reply #14 on: June 09, 2023, 1520 UTC »
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.

As with C-QUAM, there is a pilot tone with the kahn system as well, at 15Hz, Magnavox was 5 Hz.  This would be another tell-tale of stereo transmission.

A good signal here on the SDR recording. I checked for a 15 Hz pilot tone, and did not see one.

Recording of the sign on at 0127 UTC including a gmail address, rmpotion@gmail.com ? Any better guesses? https://cdn.discordapp.com/attachments/1021029304970252350/1116745946634658013/AmStereo1620.mp3

Sounds right to me. I sent an email. The fact he says “You may contact this teeny-weeny radio station” definitely seems to indicate this is a part 15 operation. Maybe retransmitted by the same guy that runs the 1620 transmitter?
« Last Edit: June 09, 2023, 1527 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 a Kenwood TS-570D or RTL-SDR V3 with a 40 meter band Inverted V at 50 feet.
My website: https://swl7.wordpress.com/
Shortwave Radio Archive: https://www.youtube.com/@SW_Archive
https://archive.org/details/@shortwave_radio_archive

 

HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns