Doug, W9PN wrote:
I would like to use the receive antenna input for a 160/80m low
noise receive antenna input. How much built in RF protection /
switching does the Orion II have on this input? In other words how
much input protection do I need on the receive only antenna to
prevent RF damage to the Orion due to RF energy from my transmitting
antenna feeding back into the receiver via the receive antenna
input? How is the use of a separate receive antenna best handled
with a single Orion II station?
Doug,
I had a problem with my Orion along these lines because four
of my Beverage antennas pass beneath my 80, 40, 20 and 15 meter
transmit antennas. I had major problems on 40 meters when running
the Titan III. Never damaged the Orion, but it was shutting down and
doing other very strange, undesirable things. I bought a ICE
receiver protection
assembly, see:
http://www.iceradioproducts.com/reconly.html#rflimiter
at the very bottom of that page. Mine is the model #197, but any of
them would prevent problems for you.
Now there are no problems or worries here running full legal
power on any band--whether or not I am using any of my six Beverages
for receiving. Perhaps with a smaller RX antenna or running lower
power, you would not need any extra receiver protection. Good
luck. The low bands are addicting but fun!
73,
Charles - N5UL
Hobbs, NM
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