Oh, they sell it! Quite expensive, i find.
I think it depends on where you want to place the antenna later. On the
top of a house or on the car in an open field it works without an
additional wire. If you place it in or below or beside a tree or in the
field shadow of a house, some additional wire could be helpful to rise
the signal level. But often this does not rise the SNR, just the level.
I would try it without additional wire first and see if the signal
levels are high enough. Its better to put it into a QRM-clean and free
Am 29.09.2015 14:13, schrieb Chris Wilson:
29 September 2015
A friend bought me an active RX antenna, a PA0RDT clone, from Ebay:
as a gift for sorting a car problem. It's built and working, but the
build notes suggest an additional wire on the PCB that acts as the
aerial may be needed. What are people's thoughts on adding say a 12
inch wire poking out the PVC tube that it will be mounted high up outside
in? Necessary or not? Just use the PCB board antenna? Thanks.