[App_rpt] Simplex node with just RXAud/TXAud/PTT ?

[James Nessen]

It depends on the radio you use.  I have 2 GM300s setup as a repeater,  
my transmit side only runs 8 watts and will run forever (i have dual  
fan cooling on it).  One thing that you must have is fans blowing  
across the heatsink.  My repeater is fairly active (i use it for voip  
linking) and i have had no issues.  It's been on the air for a few  
years now.

Jim / K6JWN

On Aug 12, 2008, at 4:51 PM, Chad Palm wrote:

> I believe I am looking for a configuration similar to what you've  
> got going on, simplex base control: one asterisk box at location A,  
> with a motorola GM300 through USB soundcard FOB and another  
> identical setup at location B.  When a portable at A transmits on  
> the channel the GM300 is on, I want the audio to cross over IAX2/GSM  
> and open up the radio at site B, transmitting to portables at that  
> site.. the same process should happen in reverse for traffic from  
> B.  I've read it's dangerous to use mobile radios above a 10%  
> transmission duty cycle due to heat, so I think CTCSS/DCS between  
> the portables and their (local) base is the best way to prevent  
> that.. meaning I want VOX control between the asterisk boxes right?   
> Any comments or suggestions you may have would definitely be  
> appreciated!
>
> ChadP
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