I can send you a copy of a program I wrote. It is based on Cecil's work. You
can put in the length of the dipole you want to use, the frequency, and type
of feed line. It gives you the choice of giving you the length of feedline
for that single case, or a start and stop frequency in which case it prints
out a chart of frequency vs. total length.Add jumpers to make up the
difference above 80 feet and your good to go!

For portable operation a 130 foot dipole fed with 80 feet of 300 Ohm to a
small piece of Plexiglas and two sets of banana jacks would allow you to
put jumpers of various lengths into the jacks. The second set goes to the
rig via a convenient length of 50 ohm coax with a choke balun of ferrites.
Lengths of 1,2,4, and 8 foot would allow you to make up jumpers to enable 75
meters from 3.8 to 4 and all the other bands with the exception of 60
meters.

It can be made smaller if your only interested in 40 and up etc. Easy to
carry, no tuner and worst swr around 1.7:1

For example a 2 foot jumper would put you at 4.0, and a series of an 8,2,
and 1 jumper for 3.8

"Buck" wrote in message
...

I would like to build a portable antenna using 300 ohm TV- twin lead
for the feed for the tuner. Is there a recommended length and feed
point for all bands?

Thanks

Buck
N4PGW

--
73 for now
Buck
N4PGW