Any of the controllers with a analog input can do that.... for
example the Scom 7K can't as it doesn't ave an analog input.
The Arcom 210 can.
There are two ways to read signal level - one is to read the
FM receiver limiter - that varies with signal strength but the
IF gain of the average receiver is so high that it maxes out
in a hurry.
The second way to read receiver quieting - but the DC
voltage is backwards - it's at max with no signal and minimum
with a full quieting signal. Some controllers can't handle that
and you end up building up an outboard analog DC voltage
inverter.
Just locate the DC voltage that is generated from the squelch
noise (i.e. the quieting voltage) and read it with the A-to-D input.
Put a meter face on it that reads backwards (i.e. the higher
DC voltage is generated by less signal), then set up a DTMF
command to announce the signal level.
At 12:26 PM 06/18/08, you wrote:
They where great repeater controllers, I had an Azden PCS-2000 as a
reciever for my first repeater. Had the signal strength lights tied
to the inputs of the VIC-20 and changed the beep depending on signal
strength, kinda KEWL at the time. I wish there was a controller that
did that now -
Thanks for the memories - Rob KS4EC
----------
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of jistabout
Sent: Wednesday, June 18, 2008 3:16 PM
To: [email protected]
Subject: [Repeater-Builder] Re: software repeater controller
--- In
<mailto:Repeater-Builder%40yahoogroups.com>[email protected],
"Alexandre Souza" <alexandre-
[EMAIL PROTECTED]> wrote:
>
> > For multiple audio ports these days I'd recommend using USB audio
> > devices. ISA slots are way gone and PCI slots aren't far behind.
For
> > an embedded PC controlling radios 24/7 you want something small,
quiet
> > and low power, most form factors that fit that description usually
> > have few if any PCI slots.
>
> A PC controlling a repeater?!?!?! What is the problem of using
a small
> microcontroller, with some BASIC programming???
>
> You are using a cannon to kill a microbe he he he
>
Not at all. Using a PC to control a repeater as complex as the system
here with remotes etc. is a perfectly logical choice and allows
nearly unlimited flexability.
The original controller on the system here back in the mid 1980s was
a Commodore VIC-20 :). Any young'ens remember those?
- Darrell/KA7BTV
Since 1974, the award-winning Alpert JFCS has helped families of all
faiths throughout most of <?xml:namespace prefix = st1 />Palm Beach
County, FL, via counseling, seniors services, residences for the
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