Eric Rosenberg writes:
Everything seemed fine until this weekend's ARRL RTTY Roundup. After
being on the air for about 4 hours, once again there no was RF output
Eric,
Sounds like an over temperature problem. Especially if running RTTY at
near full power. The high duty cycle of RTTY can cause the PA to get very
hot. When it gets too hot, the radio shuts the transmitter down for
protection until it cools off in 15-30 minutes. Too much audio gain/ALC
can cause the same. Review the tech manual on transmitter setup about over
driving the K3 or external amplifier. Just sounds like you're driving the
K3 a bit too hard for prolonged periods.
GL es 73, Paul NA5N
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
