I have installed a receive loop ( http://www.qsl.net/kc2tx/ ) and finished
measuring and observing...
Measurements:
VSWR --- 1.7 @ 1.830
ZO ----- 77 at 1.830
Observation:
Following ON4UN's comments regarding needing a preamp or not, measured S1 to 2
noise level with antenna connected during mid-day, S0 with dummy load connected.
During evening hours, notice some improvement - S2 drop in noise level when
switching from xmt antenna (inverted U) to the loop - but not hearing much in
the way of receive signals (e.g., hear a fairly strong signal from the west
coast on the xmt antenna, nothing on the loop and I have it oriented east/west).
I'm uncertain if a low noise amp will help my cause (thoughts??)
I do not have a common mode choke installed, yet...will one make that much
difference?
The loop is located about 60' away from the Inverted U and radials.
Comments/suggestions appreciated.
Thank you, in advance, for constructive, relative to what I have now,
replies....non-"constructive" means I can't erect a BOG, Beveridge or Waller
Flag so don't ask why I didn't go that route.
71.5/72 de Jim Rodenkirch K9JWV
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
|