AM Stereo!

[michaeljwyo]

I decided to make a new thread instead of hijacking the KSOP thread. As promised in the thread, here are some airchecks made directly off of the KEVA motorola modulation monitor. In full 10khz AM Stereo! I looked around and found these that I had made back in August of 2003 when I was still on morning drive on KEVA. These were made shortly after I installed the Motorola C-Quam AM stereo equipment. As always, if anyone happens to have some AM Stereo airchecks on-hand I'd love to hear them to add to my collection. I have one from KSL's AM Stereo days (they used the Kahn system) and I wish I could find more. (I also wish the KSL one was longer ) There were some great AM Stereo stations in the Salt Lake area back in the day.
Anyways, here's the link to my files. They are posted in a special section of my web site. Also available on that same page is a scoped aircheck of KEVA from 2005 when on of our satellite receivers died and we simulcasted KNYN for several hours on KEVA. So it's KEVA with hot AC in AM Stereo instead of classic country. That one was not recorded directly off the modulation monitor, but I used my Sony SRF-A100 AM Stereo radio so it's almost just as nice....that's a great radio! ENJOY!!!!

www.cajuncomputers.com/sounds

Michael n Wyo

[Timmy]

I recall when most Dodge/Chrysler vehicles had AM Stereo tuners. They were nice.

[dxstuboy]

This just saddens me that a lot of other radio stations on AM aren't doing this. Imagine if all stations running IBUZ were mandated to switch to AM stereo at night, what a wonderful world this would be.

[CAwasinNJ]

Digital and C-QUAM stereo aren't mutually exclusive, provided you aren't using the stupid IBUZ. CAM-D can do it. I've ranted on why CAM-D is a better system before, but there's a good summary on KDYL's site. www.kdylam.com/camd.htm Is KDYL still using it?

I also went over to the wrathofkahn sites to see what progress had been made, and the .com and .net sites are offline. The .org may still be working, but I'm not sure if it was taken over by someone else or what the heck is going on. You can go take a look for yourself, but it really bizarre.

[michaeljwyo]

I talked to Mr Carlson at KDYL a while back when they first installed the CAM-D system. I asked about stereo since on the CAM-D system, it's basically Kahn ISB with an extra digital subcarrier added. No there were no radios made to decode the digital part of it, however supposedly the analog part was indeed plain old Kahn AM Stereo up to 10khz. Meaning if you have an older AM Stereo radio that decodes the kahn system, you'd get stereo. Many times I've had my Sony SRF-A100 radio with me and tried setting it to the Kahn setting and listening to KDYL.....hoping for stereo. Last I checked, still mono. Ralph had told me they were working on getting stereo audio to the transmitter so they could indeed have it there for the CAM-D system. However I don't know if that ever happened. It's been a while....probably 6 months since I last checked it so I don't know if they are still planning on getting stereo audio from the studio to the transmitter. Somehow I doubt it. I feel like the CAM-D ship has sailed. Since the ARE an AM music station it would be nice to see KDYL do SOMETHING. Like toss in a C-Quam exciter.....at least we know there are literally THOUSANDS of car radios out there that receive it. Most people don't know because no one down there is transmitting it but I bet there'd be a lot of wide eyes when people tuned over to 1060 and heard the stereo pop in!!
As for wrathofkahn.org I don't know what to say.....I guess uncle Leonard is off his rocker...WAYYYY off this time.
CAM-D seemed like a great idea and I sure wish it would have taken off. Seems to be a better digital system that can give you the digital part....but with great audio on both the digital AND analog side....AND no hash on the sidebands. I'd still take C-quam over digital any day. The digital (IBOC) sounds good but is still subject to signal fade and power line noise and static crashes......when all these things happen it still jumps out of digital back to analog and you get the same AM noise. Nothing worse than driving around having a signal popping back and forth from digital to analog to digital and so forth. It bothers me as it is when it happens with FM IBOC.
Long live C-quam

Michael n Wyo

[CAwasinNJ]

I don't see this happening, but a good idea in theory would be for the FCC to mandate 100-10000Hz frequency response on both transmitters and receivers. The transmitters probably already do, but the sucky nature of the cheap receivers means people can't hear it.

[kenglish]

According to the FCC files, they have an STL licensed for 385KF8E emissions. That, I think, is FM analog, with more than one audio.
In the past, I've listened to their STL via a scanner...it sounded great!
Anyone tried lately.