Oh dear. Of course I know that stuff. BTW, except for very lossy RX antennas
the only thing I know of that gives a "flat" SWR is a dummy load.
The OP said, "My antenna, for 40 mtr's, is a 67' wire up about 25'." Why should
he make a 40-meter dipole so complicated?
Wes N7WS
On 1/16/2019 9:37 AM, Ken wrote:
On 1/16/19 12:11 AM, Wes Stewart wrote:
Why don't you cut the dipole in the center, add an insulator and feed it with
coax? Put a CM choke at the feedpoint if you insist and lose the ladderline
and tuner. _Prune the wire length for resonance. _
You do realize that "pruning" for resonance will rarely give a flat SWR and
pruning for low SWR does not mean the antenna is resonant?
Of course, if you cut an end fed Zepp and feed it in the center with coax, it
becomes a single band dipole instead of a multi band antenna.
Ken WA8JXM
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
