Hi MF
Probably not 2mW ERP Stefan ;-)
Have to reconfigure my U3 but really don't know which ERP I'm getting right now
The PA outputs 60V RMS under 50Ohm load, but the loop is not an ideal load and I can tune it
to about 80V RMS. When detuned, RMS runs up to >>100V and PA gets into problems
I tried to get loop performance using Andy G4JNT excel and this is what I got
Probably many things wrong there
What I use is a 70m perimeter loop made from RG59 coax (braid and inner shorted on ends) but not a round circle
The resonate cap is very close to what I need to tuneit.
So the "equivalent" round loop diameter should be 21m
Go figure ! :-)
One detail to mention:
Yesterday, it rained. Not very usual here and still not tested the loop with this Tx power and with wet terrace
It seems to me that my signals was better than before. Could the wet terrace worked as a kind of reflector or
re-shapped the radiation diagram of the horizontal loop making it more efficient for Dx ??
The loop is not equidistant from terrace but keeps about 3 to 4 meter high, and just 1m on the feeding point
73 de Luis
EA5DOM
Hi Luis,
Ooh, very well! I'm glad that i received you the first time! Is it really 2 mW ERP?
Oh and BTW it was in WSPR, the super mode!!!! ;-)
73, Stefan
Am 30.09.2015 00:17, schrieb VIGILANT Luis Fernández:
Even with the loop we are on the way ;-)
| 2015-09-29 22:00 |
EA5DOM |
0.475611 |
-27 |
0 |
IM98wn |
0.002 |
DK7FC/P |
JN49ik |
1398 |
27
|
73 de Luis
EA5DOM
Am 28.09.2015 17:02, schrieb VIGILANT Luis Fernández:
[...]
Next in the list is going vertical. Coil and variometer on the way. Keep tuned ;-)
Oh yes! Do it!!! :-) Looking forward to a QSO :-)
73, Stefan
