Dulles Repeater Down for Repair
fgentges at mindspring.com
Tue May 4 13:05:45 CDT 2010
We have had recurring problems with the Dulles repeater, W4DLS, for some
time but it has not gone into a hard failure so we could diagnose the
We went up today and checked the antenna SWR and found it excellent so
we conclude the antenna is not all that bad and is most likely not the
problem. On occasion, the transmitter sounded like something very wrong
with the phase lock loop exciter so we will check that out also.
The repeater seems OK except that the receiver sensitivity is down. We
turned off the repeater and have brought the radio chassis down to the
lab to check out further.
Fortunately, we have a spare power supply we got at the VWS Winterfest
so we did not need to bring that down.
We will let everyone know when we have it back on the air.
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