Third, undocumented KFI IFB frequency?

[madscanner]

At my location in the eastern San Gabriel Valley, I am able to clearly receive KFI's IFB audio using a rooftop discone on 166.250 MHz (WPSG400) and 450.725 MHz (KPK405).

But I am also hearing the same audio on 165.335 MHz at a very weak level. Its audio is the same ~30 second undelayed audio the other two frequencies exhibit versus the 640 kHz broadcast. And yet nothing comes back for this frequency when searching the FCC ULS database. Is anyone able to receive the same signal? How strong is it where you live? I don't think it's an intermodulation product in my receiver, although anything is possible.

 

[AM909]

I show that area of VHF is government/NTIA allocated, with 12.5 kHz spacing, so 165.335 shouldn't be a valid freq.

I hear it here on 165.3375 with a service monitor and a radio, a mile or two from the KFI 640 kHz transmitter, at about -100 dBm. The RR databases says it's a Coast Guard freq. Maybe the CG is repeating it for some reason?

 

[KevinC]

At my location in the eastern San Gabriel Valley, I am able to clearly receive KFI's IFB audio using a rooftop discone on 166.250 MHz (WPSG400) and 450.725 MHz (KPK405).

But I am also hearing the same audio on 165.335 MHz at a very weak level. Its audio is the same ~30 second undelayed audio the other two frequencies exhibit versus the 640 kHz broadcast. And yet nothing comes back for this frequency when searching the FCC ULS database. Is anyone able to receive the same signal? How strong is it where you live? I don't think it's an intermodulation product in my receiver, although anything is possible.

Is 166.250 extremely strong? Your 165.335 may be 165.340, which is twice the second IF (455 KHz) lower that most scanners use.

 

[AM909]

I'm pretty sure the signal is there, on 165.3375. [i.e. that it's not an image]

 

[prcguy]

I'm hearing 165.335 very weak about -103dBm on an R8600. The 166.250 is -88dBm on the same radio, same antenna.