I-Buzz forever?

[qtpieislit]

Has anyone else noticed this? I have never heard this before until now. And I still cannot believe that 1210/WPHT Philadelphia drifts. The analogue center tuning on 1210/Philadelphia drifts, particularly now that they are running AMHD. Before this I have only heard FM stations drift, and this was mostly before AFC. When I first experienced drift on a non digital AM tuner, I thought I was imagining this. At first I figured with all the equipment I have running here, (including, off the record, my own transmitters, at times), perhaps I was creating this phenomenon. But how many time do you have to calibrate your own equipment, before you begin to say, that this may be an exercise in futility. Sometimes it would drift in a matter of less than a half hour. Always at different clock speeds, no pattern. And very subtlety. It’s like you realize that after a measured period of time, you're listening to I-Hash. So I decided to ask someone who also is a die hard AM’er. And they confirmed the same thing. I was stunned.

 

[w9wi]

Has anyone else noticed this? I have never heard this before until now. And I still cannot believe that 1210/WPHT Philadelphia drifts. The analogue center tuning on 1210/Philadelphia drifts, particularly now that they are running AMHD.

I can assure you WPHT's carrier frequency isn't drifting -- the heterodyne with other signals on 1210 would be blatantly obvious. (I've listened to 1210 at night -- trying, unsuccessfully, to decode WPHT's HD -- no heterodynes there.)

I would guess what you're hearing is the IBOC sidebands of some other station (WOWO?) interfering with WPHT and fading up & down in strength.

 

[jcolletta275]

It's possible. I'm just outside the local countour on Radio-Locator's map for WOWO, and their sidebands trash 40kHz up and down the dial, so they're running 'em pretty strong.