[Antennas] Running Ladder Line Through a Wall

Wed Sep 8 07:36:12 EDT 2004

Kevin,
Use can use "balanced coax." What this is, is two
parallel pieces of coax with the shield soldered together
at both ends and grounded at the tuner end.
The two center conductors of the coax are then use
like balanced line and connected to the ladder-line
at one end and connected to the BALANCED output
of your tuner.
Also remember that the losses in this run will be
TWICE that of the coax as you are using two lengths
of it.... (20 feet of the balanced coax has the same
loss of a single 40-foot piece).
I typically use a 12-foot sections to get into the house
and to the tuner.
(See the attached pics of some balanced coax).
72/73,
Bill KA8VIT
*********** REPLY SEPARATOR ***********
On 9/7/2004 at 10:56 PM Kevin Nathan wrote:
>Hello Everyone,
>>I am using as one of my antennas a McCoy dipole fed with window line. I
>want to use the balun built into my Tentec 238B and need to bring the
>ladder
>line through the wall using an existing hole drilled for RG8 coax. I know
>there is a method of using two parallel pieces of RG-8X for example, but I
>can't remember exactly how the wiring goes to do this. Could someone on
>the
>list please direct me to the appropriate spot in the ARRL Antenna Book or
>let me know what the appropriate method is? Or, point me to a good, high
>quality remote current balun I can use to replace the one I just had arc
on
>me? I run a maximum of about 600 watts with the ALS-600 solid state amp.
>>Thanks much for your help and very 73.
>>>Kevin :)
>Amateur Radio: K7RX
>Navy Marine Corps MARS: NNN0SHS
>>>>>- - - 
>>Your moderator for this list is:
>Larry Wilson KE1HZ antennas-owner at mailman.qth.net
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Bill Chaikin, KA8VIT
USS COD Amateur Radio Club - W8COD
WW2 Submarine USS COD SS-224
ka8vit at ix.netcom.com
www.qsl.net/ka8vit
QRP-L NBR: 2596