Interesting. So you think it's some kind of single-polarity multipath?
Bizarre.
bp
On 9/22/2014 8:53 PM, George Skorup (Cyber Broadcasting) via Af wrote:
I lost the original thread for some reason. Anyway... we encountered
the same problem with a different radio. Was a KP reflector, but we
used a connectorized SM on a 2' Laird HD dish as a replacement since
the link needed some more power anyway. Got it up, started final
alignment and bam! like a lightswitch, H pol power level dropped to
-89, V SNR low, H SNR higher just like before. Changed elevation a
little bit and it came back to normal. I had the guys move elevation
again just so I could believe what I was seeing. Somehow we have a
reflection that is now apparently just outside of the beamwidth of the
2' dish. Hopefully. At least that's my theory. It's up 160' on a grain
leg about 4 miles to the main site. I wonder if the reflection point
is the tops of the trees at some mid point. Maybe MIMO-A will help if
this starts happening again.
Here's the new SM link status. It's been stable since. Really strange
how the multipath was swinging back and forth on the reflector. I
guess you get to learn/hate RF more and more every day.
