Den 06-12-2016 kl. 16:01 skrev Peter Frenning [OZ1PIF]:
Den 06-12-2016 kl. 15:26 skrev Catherine James:
Is that VSWR of 65:1 key-down transmit at 1,700 watts, without any pulsing? So
if I accidentally transmit normal hand-sent slow CW into a bad antenna
mismatch, no damage will occur?
I've gotten really suspicious of those high SWR claims for solid-state power
devices because they are always qualified heavily by duty cycle.
--Cathy
Well Cathy, my homebrew 144MHz LDMOS amp survived doing this to the
output relay (See:
http://www.frenning.dk/OZ1PIF_HOMEPAGE/LDMOS_SSPA.html (Towards the end
of the article))
--
Vy 73 de OZ1PIF/5Q2M, Peter
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email: peter(no-spam filler)@frenning.dk
http://www.frenning.dk/oz1pif.htm
Ph. +45 4619 3239/ +45 2332 9464
Snailmail:
Peter Frenning
Ternevej 23
DK-4130 Viby Sj.
Denmark
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