[Moon] Two-meter power spikes, T E Amplifiers: Thank you
Cristofori Concerts
kc3re at yahoo.com
Fri Dec 14 23:26:13 CET 2007
Thank you to everyone who replied to this question. I have so much
valuable information and feel much more assured about this.
I also tried to contact both T E Systems and Yaesu. The results:
I had a very good, informative, and lengthy chat with T E Systems.
They told me that they had indeed had this problem with their six-meter
amplifiers because of transceiver power spikes up to the 100-watt
output possibility of six-meter transceivers, even with the output
power turned down to the amplifier's input limit. However, they said
that they have no history at all of their two-meter amplifiers being
taken out by transceiver spikes from two-meter transceivers with power
appropriately turned down from the 50-watt output capability. They did
say that they had some failure from overdriving while actually
transmitting (purposely or absent-mindedly,) but never a reported spike
failure. They seemed to think that their two-meter amplifier would not
experience a problem from a spike from a 50-watt transceiver.
I sent an E-Mail to my contact at Yaesu who had helped to correct an
FT-857 self-oscillation problem on six meters. The E-Mail was deleted
with no reply. (Caveat emptor!)
Thanks again for all of the help.
73,
Martin, KC3RE
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