[Elecraft] non-Wire antennas

Wed Feb 20 07:54:00 2002

There are 2 meters of coax run from the back of the rig to a 4:1 balun, =
thence 450 ohm ladder line up through th attic, out the eave and =
straight up to the antenna center insulator. I'm going to leave well =
enough alone.

Dan

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Don Wilhelm
Sent: Tuesday, February 19, 2002 9:52 PM
To: Dan Barker; Elecraft
Subject: Re: [Elecraft] non-Wire antennas

Dan,

IMHO that is the correct answer!!!
The K2 will work just fine into a 1.7 SWR and should produce its rated
output of 10 watts or more.  If loss is a concern - ask yourself how =
much 50
ohm coax do you have on that antenna system.  The loss through a few =
feet of
coax will be very low - OTOH if the coax run is 100 feet or more and has =
an
SWR of 1.7 AND is on 15 meters or above, the loss may become =
significant.

The SWR on the ladder line is much higher than what is indicated for the =
50
ohm load - but then ladder line has low losses anyway, even with a high =
SWR
(yes, there are exceptions - like VHF - but we are talking about the HF
bands here.

73,
Don Wilhelm  - Wake Forest, NC   W3FPR home page: =
http://www.qsl.net/w3fpr/
  QRP-L # 485   K2  SN 0020   mailto: [email protected]

----- Original Message -----

I have an idea or two. It's working, don't mess with it. What's wrong =
with
1.7:1 anyway on one band of a 9 band, ladder fed doublet? There's 2 =
1.5:1's
and a bunch lower still.

_______________________________________________
Elecraft mailing list: [email protected]
You must be a list member to post to the list.=20
Postings must be plain text (no HTML or attachments).=20
See: http://mailman.qth.net/mailman/listinfo/elecraft
Elecraft Web Page: http://www.elecraft.com