[TowerTalk] ? Yagi Interaction on 15m: KT34XA and XM240
n4kg@juno.com
n4kg@juno.com
Fri, 27 Oct 2000 06:50:06 -0600
One possible cause of (false) LOW SWR readings
at LOW power is the fact that the decectors all
use diodes which have an inherent threshold
voltage which must be overcome before any
current flows. If the diodes are silicon, the
threshold voltage is approximately 0.7 VDC.
If the reflected voltage is 0.6, the SWR meter
will erroneously show a PERFECT MATCH.
de Tom N4KG
________________________________________________________________
YOU'RE PAYING TOO MUCH FOR THE INTERNET!
Juno now offers FREE Internet Access!
Try it today - there's no risk! For your FREE software, visit:
http://dl.www.juno.com/get/tagj.
--
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com