There are several ways to make a dipole cover all of 75/80 meters, and also many ways that don't work. A double Bazooka doesn't cut it. It only provides about 14% increase in bandwidth at the expense
K5TR has another way. He sent me how to do it but I can't find it. I recall a piece of 75 ohm coax that was switched into the line. Maybe Geo will post it. Mike W0MU CC Packet Cluster W0MU-1 W0MU.NET
It's even better than that - a piece of 75-ohm coax permanently in the line at the right place gives a frequency characteristic that has a double-dip. I think the idea was first thought of (or at lea
my antenna handbook shows one wavelength of rg-213 starting at the feepoint, followed by 1/4 wavelength of RG-11 does the trick nicely, with low losses at the band edges. if that will make it to the
I have a full sized sloper with the 1/4 wavelength piece of RG6 (was lighter than RG11 hanging out of the antenna) between the antenna and the RG213 coax (length of the RG213 is irrelevant.) Broadens
The W6NL approach is 1/2 WL of 50-ohm coax, followed by a quarter wave of 75-ohm, followed by as much 50-ohm as it takes to get to the house. 73, Pete _______________________________________________
This is it! CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 "A slip of the foot you may soon recover, but a slip of the tongue you may never get over." Ben Franklin It's even better than that - a
Hi Mike Here is a post from W4RNL about inserting a 75 ohm matching section in an 80 meter dipole for 2 SWR points. 73 Tom W7WHY http://lists.contesting.com/_towertalk/1997-11/msg00706.html _________
However then the unknown lenght of 50 ohm cable will transform the impedance after the quarter wave section all over the place, that is if you are unlucky. Better use electrical half waves for that c
I'm affraid that quarterwave 75 Ohm impedance transformer is excellent approach for dipole(s) and/or single vertical, but quite useless for broadening bandwith of 4 square array. 73 Mirko, S57AD Pete