[ARC5] BC sets and others.

[Rob Atkinson]

On Wed, Jan 22, 2014 at 3:15 PM, Geoff <geoffrey at jeremy.mv.com> wrote:
> I believe that is still inaccurate, but I invite you to do the legwork; Im
> kind of busy these days getting customer repairs out the door.
>
> It is my understanding that the 10.2 kHz is the total audio bandwidth and
> not each sideband.

It is the total audio bandwidth but a double sideband AM signal has
two sidebands each carrying the full audio response so the occupied
bandwidth before any attenuation kicks in is twice the audio response
upper limit.

> In any case many antenna systems do not have much beyond a 10KHz BW, Ive
> been at several stations and can listen to what comes out of the TX and also
> what actually gets broadcast. The chopped sidebands are very apparent.

Indeed, achieving a flat vswr curve over 20 kc is not easy especially
with a phased system of two or more towers.

73

Rob
K5UJ