FYI,

Quintron's offsets ran 2 to 6 cycles per transmitter at the most. 20 cycles 
if getting audible.  At 2 to 6 cycles the system sounds pretty good.

Paul


-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] Behalf Of Joe
Sent: Tuesday, June 07, 2005 5:36 AM
To: [email protected]
Subject: RE: [Repeater-Builder] Simulcast: Anyone done this for ham
repeaters


 Just keep n mind that you need to have a way to offset each of the 
transmitters 10-20Hz.  You do not want them all on the exact same frequency 
on an analog simulcast system.  If you do have them exactly the same 
frequency, you will be subject to deep and long phasing nulls in the mixed 
signal areas.  This will sound like signal fade.  If you offset the 
frequencies slightly, these multiple signals will "roll" and create a low 
frequency beat note.  At a 10-20Hz frequency offset, you will never hear a 
10-20HZ audio tone on a normal transceiver.

Joe

---- Jeff DePolo WN3A <[EMAIL PROTECTED]> wrote:
> I have three repeater transmitters running with the rubidium/Delta
> combination, but I haven't tackled the audio delay issue yet.  The
> rubidium/Delta marriage and on-air testing has been more or less just a
> proof-of-concept excercise up to this point.  When I have more time I'll 
> get
> back to the project.
>
>                                               --- Jeff






Yahoo! Groups Links














 
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/
 



Reply via email to