[ETS/PARC List] ETSNJ Motorola Repeater is better than ever!

[lengriff at optimum.net]

    We ( Len, WB2HKK, and Rich, KB2LLM ) went to the site today to
investigate the receive problem.



There will be a detailed presentation at the next meeting.



There were 4 separate areas that became the solution:



1] The receive preamp added TOO much receive gain! I had tuned the Maxtrac
for about 1.5uV sensitivity itself.

    The preamp resulted in about .08uV sensitivity. This just caused
excessive de-sense from the transmitter.



2] The BNC cable I had used for the receiver to duplexer connection was a
piece of CR*P!

    I had fabricated a BNC to N cable from RG1428 Teflon cable to replace it
 and it was perfect!



3] The duplexer connections to the transmitter were re-routed to move them
away from any receive cables.



4] I touched up the duplexer for better transmit reject on the receive side.



When done, we could turn the transmitter on / off with NO change in receive
signal.



The result is we have HANDHELD coverage almost everywhere!



ENJOY!

Len

WB2HKK