Ken Arck wrote:
> At 05:30 PM 12/2/2005 -0500, you wrote:
>
>> Shouldn't the touch tone pad tone be set at the maximum deviation or
>> nearly so?
>
> <---I've always found around 3 Khz to be the correct point for most
> decoders/controllers. You mileage may, of course, vary.
>
> Those are steady and not subject to peaks. Also I take
>> it the max deviation should be set with a 1Khz audio tone applied>
>
> <--Best to check with the manufacturer's spec, although most I know of spec
> a 1 Khz tone, yep.
An interesting exercise is to "sweep" your audio path by doing various
tones and see if your repeater's audio path has a "slope" to it.
Certain to-remain-un-named controllers are rumored to have an
inappropriate value published in their RC circuit for de-emphasizing
audio if they're being fed by a discriminator.
1 KHz is the "usual" test point, but there's nothing stopping someone
from setting 1 KHz to whatever deviation their controller/repeater
manufacturer recommends and then measuring and plotting 440 Hz, 800 Hz,
1200 Hz, 1800 Hz, 2200 Hz, etc.
Sometimes you find out why your repeater sounds "funny", doing
experiments like that. :-) Link radios -- you can do the same thing.
Nate WY0X
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
