[TenTec] [orion565] Orion Sub Receiver BW?

[Grant Youngman]

> When I tuned in a local AM station and looked at the audio on 
> HamAlyzer it looked great EXCEPT for one thing.  It was only 
> 3000 Hz wide?  The audio signal plummeted after 3,000 Hz!
> 
> My question to the group - Is this pilot error on my part or 
> a problem with the Orion Sub Receiver?

The total bandwidth is 6 Khz.  So you're only going to see 3 Khz of audio if
you are center tuned on an AM signal and have PBT = 0.

If you tune to one side or the other of the signal, or set PBT to place the
carrier towards one side of the signal, you will see the AF response you
might be expecting.

So with noise input only, you'll see about 6 Khz of response, but an actual
signal, centered, is only going to show 3 Khz.

Grant/NQ5T