Hi Stephan.
Well, the plan is to get my aerial working properly on receive first, then use it to transmit as well. I am
only interested in LF - 137kHz and 160m, no higher.
It would be most convenient if I could just use the one aerial for both because I have the usual problems with
the Estates Manager (the XYL!!).
I do intend to get an E probe working as well - it could go on the pole on the house, on a smaller pole on
top, and be maybe 15 meters above ground, but this comes later.
Martin GW3UCJ.
#######################
I assume you're talking about RX antennas?
If you want to use a loop, maybe you want to build an own loop for 137 kHz that is placed as far as possible
from the house. The size (enclosed area) may be smaller. You may use a coax cable going to the shack (maybe
RG174) that is grounded in the garden, with an own LF earth rod. Then you can use a transformer to couple
the signal to your RX.
There are several ways to do it and the best SNR that can be achieved depends
on the local noise situation.
I am rather a fan of small E probe antennas since they are easy to build and can easily be lifted to 10 m
above GND, e.g. with a small plastic rod. But my experience with loops is small, maybe i become a fan of
them too soon :-)
73, Stefan/DK7FC
|
