The BL2 (switchable balun) will handle 250 watts! That should be enough.
Dave W7AQK
----- Original Message -----
From: "Robert Tellefsen" <[EMAIL PROTECTED]>
To: "Brian Lloyd" <[EMAIL PROTECTED]>; "elecraft Reflector"
<elecraft@mailman.qth.net>
Sent: Tuesday, May 13, 2008 9:54 AM
Subject: Re: [Elecraft] Bal[un] (was: Buddipole vs. tuner and wire)
Hi Brian
I don't recall if you mentioned what power level you
would be using with your K2. If it is running barefoot,
without the 100w PA, you could use one of the Elecraft
switchable baluns. They switch between 1:1 and 4:1
ratios, giving you a good chance to match most balanced
feeds.
Even though the rig end of the line may be reactive, due
to impedance mismatches along the line, the switchable
balun can be used to reduce the amount of mismatch the
ATU then has to to cope with.
This makes a simple dipole with tuned feeders a nice
multiband antenna. On a given band, try both switch
positions and see which one helps the ATU make the best
match.
Good luck and 73
Bob N6WG
----- Original Message -----
From: "Brian Lloyd" <[EMAIL PROTECTED]>
To: "elecraft Reflector" <elecraft@mailman.qth.net>
Sent: Tuesday, May 13, 2008 8:37 AM
Subject: [Elecraft] Bal[un] (was: Buddipole vs. tuner and wire)
OK, I am convinced - keep the tuner and the wire. So, that brings up
a
second question: balanced vs. unbalanced.
Wire antennas that do not require a counterpoise are usually loops
or
dipoles, i.e. inherently balanced even if not resonant. Most tuners
offer an unbalanced output. SGC says, just connect up the antenna.
Seems to me that a balun would improve things and keep RF off the
coax
and power leads to the tuner. But how well do baluns handle huge
mismatch?
Just off the top of my head, it seems to me that the tuner at the
top
of a pole with two legs sloped down, i.e. inverted-V, would make a
pretty good omni all-band antenna.
More thinking aloud.
Brian Lloyd
Granite Bay Montessori School 9330 Sierra College Bl
brian AT gbmontessori DOT com Roseville, CA 95661
+1.916.367.2131 (voice) +1.791.912.8170 (fax)
PGP key ID: 12095C52A32A1B6C
PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A
1B6C
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
