Topband: Testing RX Antennas "Out of Season"
W2pm at aol.com
W2pm at aol.com
Fri Mar 17 21:02:47 EST 2006
In a message dated 3/17/2006 8:46:22 AM Eastern Standard Time,
n0jk at hotmail.com writes:
Using the expanded AM BCB to test and optimize your 160M receive antenna is
a great idea. I used it at HC8N a few years ago (could receive many USA
stations on the NA Beverage).
A list of expanded AM band stations: http://www.am-dx.com/fcclist.htm
During the day one of the "low power AM stations" may be useful in adjusting
your antennas.
I suggested the same to Eric direct. In my case I also use a FT817 QRP rig
right out at the antenna. In the case of a flag I can rotate it and validate
it's azimuthal pattern and check the relative depth of the nulls. I also
use WWV at 2.5 and CHU at 3.33 - one being W and the other NNW. The Flags and
Pennants are of course "wide band" up to 10 meters (and beyond) and the
directivity and gain not too different at 3 Mhz than 1.8. The advantage of the
2.5Mhz WWV from here (NNJ) is that it's skywave and if I can also hear WWVH it
helps with understanding a little bit of the vertical directivity.
More information about the Topband
mailing list