At 10:04 28/06/99 +0100, G3XDV wrote:
Several stations have commented on the strength of the key-up
'spacer' signal from my Tx (yes, I will fix it). Since my current meter
does not read at all when the key is up, it took some time for me to
come up with a measured power level of the leak-through. I found it
was 3W, which gave an antenna current of 210mA, and an ERP of
2mW. (Incidentally, when I first started on 136kHz, my current was
not much more than this and the antenna was smaller!).
Two UK stations have heard this signal and Rik, ON7YD, can just
read it on his Spectrogram screen. At 176,500km/watt is this a
record?!!! It certainly shows what can be done with an extremely
low ERP.
On a quiet day I can see the 'FSK' of Mike's signal 100% on the screen and
would even give it a 'O' report, so it should be no problem to have a
slow-CW QSO with 2mW ERP (or even less) over a 350km distance.
So if you stick to slow-CW you don't need a few 100W and a big antenna to
get out of the country ...
73, Rik
Rik Strobbe ON7YD
[email protected]
Villadreef 14 B-3128 Baal BELGIUM (JO20IX)
|
