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COR Output on SVA / ConvertaCom
Posted: Sat Jul 31, 2004 7:07 pm
by HumHead
Is it possible to obtain a COR signal on the accessory connector of an SVA or MT1000 ConvertaCom?
I'm looking for a way to hang one on the accessory connector of a R1225, so that a portable can be dropped in as needed for a quick and dirty interop link.
Thanks!

Posted: Wed Aug 04, 2004 10:09 am
by wd9cms
Hi,
The SVA does have an output on the 25 pin connector that can be used for COR. I will have to find my manual to give you the exact pin out. But since the SVA uses an external amplified speaker there is a output pin that tells the external audio amplifier to turn on when audio is present from the radio. I will try to look it up tonight for you. I have used this to build a mobile repeater with an SVA.
Posted: Thu Aug 05, 2004 11:31 am
by wd9cms
I cannot find my manual for the SVA...but I looked under SABER I/II/III under Model Specific Information here on the board and it indicates that pin 5 goes high for carrier detect. I would double check this in a manual or test it with a multimeter. I hope this helps in your project. I will try to look for my manual again and if I can find it I will post more info here.

Posted: Thu Aug 05, 2004 7:41 pm
by HumHead
Thanks!
I wonder how I missed that on the first pass

I'll just have to check and see if it is carrier only, or carrier & PL.
Does anyone have any input on powering a portable if it's left in an SVA long term? I'd hate to see a cooked radio due to a failed cell. Perhaps gut a pack and replace the cells with a voltage regulator?
Posted: Sat Mar 25, 2006 10:48 am
by k4wtf
wd9cms wrote:Hi,
The SVA does have an output on the 25 pin connector that can be used for COR. I will have to find my manual to give you the exact pin out. But since the SVA uses an external amplified speaker there is a output pin that tells the external audio amplifier to turn on when audio is present from the radio. I will try to look it up tonight for you. I have used this to build a mobile repeater with an SVA.
I've been seriously considering building a mobile repeater with a couple of SVAs. Do you have any documentation from when you built yours? I'd be very interested in seeing it. No need to re-invent the wheel.
SVA COR
Posted: Sun Mar 26, 2006 4:20 pm
by K4RUR
Hello,
On the speaker connector on the Saber SVA PA squelch is on pin 5. I can't remember if it goes low or high. Pin 5 of the radio's universal connector is listed as N/C on the SVAs.
Take care,
Lowry K4RUR
Posted: Mon Mar 27, 2006 10:47 am
by va3wxm
It goes high on receive.