Thinking ahead to next winter on 160, I'm interested in replacing my
K9AY Loop with a 2-vertical phased array. I'd like to homebrew the
antennas and just buy or build the remote control unit for the shack.
I'm looking for sources of components (antenna-located preamps and an
in-shack controll
Hi George
Thanks for the qsos on 160m and 80m last night.
You were booming in here on 160m. After our qso I realised I hadn't flicked
the amp on so only worked you with 25 watts.
You can't be hearing too badly!
73
Mark ZL3AB
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Hi Pete,
For a monoband receiving array, you might consider using low impedance
resonant verticals rather than high impedance verticals.
The primary advantages of high impedance verticals are
- very short verticals (but taller verticals produce stronger signals)
- multi-band operation
- no
Tiler,
Congratulations on your new five circle YCCC array!
Be sure you very effectively waterproof all of your coaxial cable connectors
that carry DC power. Even the slightest amount of moisture in the connectors
will cause micro-arcing of the DC voltage, raising your noise floor by many dB.
I strongly second Franks comment about weather proofing.
Equally important on any outside electronics is to very carefully clean ALL the
residual flux off the PC boards, and especially on the F-connector solder pads.
ALSO, apply some acrylic conformal coating on all outdoor PCBs.
With 12v on the
Hi Dave,
Anyone who has experimented with a high impedance antenna such
as an end fed half wave has experienced the extreme environmental
influence on the feedpoint impedance of a high impedance feed.
The required spacing to trees and buildings is very difficult to predict
with any confidenc
Mark,
It was noisy here earlier but by the time the band opened to ZL it got
quieter.
TKS for the call and QSO-s.
George
On Fri, 31 Mar 2023 06:57:50 +1300 Mark wrote:
Hi George
Thanks for the qsos on 160m and 80m last night.
You were booming in here on 160m. After our qso I realised I
