[Antennas] Measuring Inverted L

Sun Nov 26 06:56:42 EST 2006

George,
One caution when measuring with a MFJ analyzer at the lower frequency bands. 
Strong broadcast band signals must be filtered out in order to get proper 
readings. However you apparently are using the antenna as you comment it works 
well. Try tuning the antenna using the SWR bridge and your transmitter source 
instead of MFJ.
Regards,
Norm W4QN
=========================================
I put up an inverted L antenna this past week. The best I can do on SWR is 
2:1 measuring at the base with my MFJ analyzer and varying a variable cap in 
series with the center conductor of the coax on 160 meters.
If I wanted to get it down to 1:1 how can I accomplish this and have it 
useful on 160 and 80 meters? I'm building a remote variable capacitor for the base.
I don't have the exact dimensions but the best I can figure are 120 feet of 
horizontal and 50 feet of vertical.
By the way it works pretty good on 160 as is but I'd like to get it down 
under 1.3:1.
Thanks.
George
Regards,
Norm W4QN