With the repeater tx at 444.975, the second receiver would only be 25 khz
away from the repeater transmit frequency! The duplexer wouldn't pass
anything to the receiver at 444.950.

Bryan
N3ST

-----Original Message-----
From: ve5sd [mailto:[EMAIL PROTECTED]
Sent: Friday, January 28, 2005 8:04 PM
To: [email protected]
Subject: [Repeater-Builder] Using two receivers on a UHF repeater




Hi,

I am looking to use a Sinclair Reslok Q3220E UHF duplexor  (insertion loss
of .5 dB and rejection of 65 dB) tuned to 444.975/449.975 mhz.  I have a UHF
Master 2 repeater (run 30 watts) and a spare UHF receiver.  I plan to have
one receiver tuned to 449.975, the second to 444.950.  I also have a high Q
bandpass filter.  If  I was to run after the duplexor the bandpass filter
tuned to 449.9625, (then a low gain preamp) then a tee then 1/4 wave of
feedline (take in account velocity factor) to each receiver would this work?
Is there a better way to do this?

The site is at a commercial broadcast site, antenna is at 300 feet (2 bay
folded dipole) and is replacing an exec 2 repeater at the same site, which
works quite well.

Any ideas or suggestions?

Derek - VE5SD








 
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