Could it be the receiver is muted during the transmit condition? 

  Neil @ 4:15am ... in Oregon 


John Clark wrote:
> 
> > How many cavities do you have for 500kc split? A transistor pa 
> >with 1 meg takes at least 4 to run 40 watts, I am using six BR 
> >notch filters.
> 
> > this is a split site?
> no, the radio (rx and tx in same unit) will be located on a 500' 
> platform on a tower.
> 
> > Is your antenna a shunt style?
> Currently, for testing purposes, I am using two seperate J-poles (one for TX, 
> one for RX) both going through their prospective halfs of the duplexer
> But my problem is that even when sent to a dummy load, the transmit seems to 
> blank out the receive.
> 
> 
> > John Clark wrote:
> > >
> > > Has anyone had any success or failure in using a 60 watt Mitrek for a 
> > > repeater on a 500 kHz seperation?
> > > Should I use two seperate Mitreks for TX / RX to prevent internal desence?
> > > Should I reconsider my frequency pair and use a 1 MHz?
> > > In my installation, the radio will be on a tower in a cabnet less than 10 
> > > ft from the radiating antenna. Will that give me trouble?
> > > My frequency is 51.2 - 51.7
> > >
> > > Thanks for your comments and suggestions,
> > >
> > > John - KI4AWK
> > --
> > 73...Clark Beckman N8PZD
> >
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>



 

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