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Author Topic: Tour of AM Stereo Station KYET  (Read 443 times)

Offline skeezix

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Tour of AM Stereo Station KYET
« on: September 06, 2022, 0139 UTC »
https://swling.com/blog/2022/09/video-tour-of-am-stereo-station-kyet/

Quote
Dan, shango066 on You Tube give us a nice little tour of KYET on 1070 kHz in Golden Valley Arizona which transmits in AM Stereo (6K day, 1 watt night). Harris solid state transmitter.
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Offline ChrisSmolinski

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Re: Tour of AM Stereo Station KYET
« Reply #1 on: September 06, 2022, 1525 UTC »
1450 WTHU in nearby Thurmont MD used to transmit in C-QUAM stereo, but that transmitter died and the new one is just mono.
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Offline ~SIGINT~

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Re: Tour of AM Stereo Station KYET
« Reply #2 on: September 07, 2022, 0044 UTC »
One would think that they would invest in a proper air conditioner --- LOL That sea container must get pretty hot.

Offline Kage

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Re: Tour of AM Stereo Station KYET
« Reply #3 on: September 08, 2022, 1432 UTC »
Awesome seeing Shango mentioned on here. By far one of my favorite youtubers and definitely recommend his channel.
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Offline Charlie_Dont_Surf

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Re: Tour of AM Stereo Station KYET
« Reply #4 on: September 08, 2022, 1832 UTC »
One would think that they would invest in a proper air conditioner --- LOL That sea container must get pretty hot.

The reason they have to run 1 Watt at night is to be able to cool off the container because of all the heat build up in the daytime.  :D

On a serious note, I love the lack of ESD awareness. "Hi. I'm the Chief Engineer. Let me show all the cards in the C-QUAM generator as I put my hands all over them, touching the chips and the card-edge fingers, while I am ungrounded, did not touch a grounded metal body before handling them, while working in the dry Arizona air. I'm a real pro, I zap shit a lot, can't figure out why and it shows." 

Those older chips in his C-QUAM generator have maybe (if he is lucky) 1 kV HBM survivablility, which means he has very little room to play with here and is tempting fate.

Don't @ me with your "but I do this sort of thing all the time, it's fine" horsehockey. No, I'm not bullshitting nor am I being overly cautious. One of the things I do for a living is worry about ESD survivability and I see a lot of customer damage issues from exactly this sort of scenario. I bet he's been handling cards like that for years - possibly even the cards in that C-QUAM generator - but he's not the model to emulate. End of story.

« Last Edit: September 08, 2022, 2041 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 ~SIGINT~

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Re: Tour of AM Stereo Station KYET
« Reply #5 on: September 08, 2022, 1948 UTC »
I had the same sentiments with all those cards being pulled ... including the C-QUAM generator card not being re-seated properly. Don't get me started on working on the live transmitter. As a former broadcast engineer, I have performed transmitter maintenance in the past, one of which was 1 mega watt ERP. There is "hot swap" and then there is "hot swap". It's within limits. And then there is walking up to a "hot" tower.

Offline Charlie_Dont_Surf

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Re: Tour of AM Stereo Station KYET
« Reply #6 on: September 08, 2022, 2045 UTC »
I had the same sentiments with all those cards being pulled ... including the C-QUAM generator card not being re-seated properly. Don't get me started on working on the live transmitter. As a former broadcast engineer, I have performed transmitter maintenance in the past, one of which was 1 mega watt ERP. There is "hot swap" and then there is "hot swap". It's within limits. And then there is walking up to a "hot" tower.

This line appears appropriate here as well: "I'm a real pro, I zap shit a lot, can't figure out why and it shows."
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 ~SIGINT~

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Re: Tour of AM Stereo Station KYET
« Reply #7 on: September 08, 2022, 2056 UTC »
Regardless, kudos must go out to the engineer for keeping the station on the air. He is knowledgeable.

Offline redhat

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Re: Tour of AM Stereo Station KYET
« Reply #8 on: September 10, 2022, 2317 UTC »
There isn't a lot of CMOS in those cards.  Most of it was MC series stuff from the 80's, the rest being discrete TTL stuff.

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Re: Tour of AM Stereo Station KYET
« Reply #9 on: September 11, 2022, 1525 UTC »
My half brother is a project manager for the TVA. They use CCTV vids of guys like that engineer getting bit for that final time as, "What not to do.", lessons for the employees.

Offline CoolAM Radio

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Re: Tour of AM Stereo Station KYET
« Reply #10 on: September 13, 2022, 1156 UTC »
The dutch LPAM station "Radio Tpot" is also broadcasting
on 918 KHz. in C-QUAM Stereo!

Check out some clips @ Youtube!

http://youtu.be/-uxvzzQaLJE

http://youtu.be/iOeZLJZoNj0

http://youtu.be/7WHcEaCv1ns

Check also

https://www.mediafire.com/folder/ie8w4gttn8jij/%23_%23_-_CARVER


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« Last Edit: September 21, 2022, 1335 UTC by CoolAM Radio »
Make your dream a reality...
                Then go to sleep...
                        Have another dream and do it again!

                 Sweet dreams!!!

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   Transmitters Do It On Air!!!
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Offline IQ_imbalance

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Re: Tour of AM Stereo Station KYET
« Reply #11 on: September 19, 2022, 2241 UTC »
Chris, have you picked up this guy yet?
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Offline CoolAM Radio

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Re: Tour of AM Stereo Station KYET
« Reply #12 on: September 21, 2022, 1337 UTC »
Check also

https://www.mediafire.com/folder/ie8w4gttn8jij/%23_%23_-_CARVER


André
CoolAMRadio/OHR Radio
the Netherlands
Make your dream a reality...
                Then go to sleep...
                        Have another dream and do it again!

                 Sweet dreams!!!

http://jingleproductions.coolam.nl
   Transmitters Do It On Air!!!
::::::::::::::::::::::::::::::::::::::

Offline Molvania Poacher

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Re: Tour of AM Stereo Station KYET
« Reply #13 on: October 01, 2022, 0119 UTC »
One QSL letter every two to three years...wow! Thanks for sharing this video.

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