[AMRadio] FW: Wanted transformer Gates BC 1 G


John Coleman ARS WA5BXO wa5bxo2005 at pctechref.com
Thu Apr 13 09:24:01 EDT 2006


	I chose 500 ohms because I could calculate the change in my
head.  450 or 600 would wouk as well.  A 1/4 wave length for 80 meters
is 60 ft. Any 1/4 wave transmission line attached to a load that is
greater than the characteristic Z of the line will transform the Z that
as seen by the source to a lower value than the load. Depending on the
SWR represendted on the the 1/4 wave line.

John, Wa5BXO

-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of uvcm inc.
Sent: Wednesday, April 12, 2006 11:47 PM
To: 'Discussion of AM Radio'
Subject: RE: [AMRadio] FW: Wanted transformer Gates BC 1 G

I am running balanced line now, I changed the length of the feed line
and
the ant, minor change
Thanks for the info

-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of John Coleman ARS
WA5BXO
Sent: Wednesday, April 12, 2006 9:09 PM
To: 'Discussion of AM Radio'
Subject: RE: [AMRadio] FW: Wanted transformer Gates BC 1 G


1/4 wave length of 500 Ohm bal line will transform it to 250 ohms.

John, WA5BXO

-----Original Message-----
From: uvcm inc. [mailto:uvc1 at verizon.net] 
Sent: Wednesday, April 12, 2006 3:27 PM
To: 'AMRadio at mailman.qth.net'
Subject: Wanted transformer Gates BC 1 G

How to lower the impendence on a double extended zepp ant from 1500 to
less
than 1000 ohms so my matchbox will work

 

Brad KB7FQR




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