[TowerTalk] Routing Ladder with Parallel Coax?
w4lde at numail.org
Sun Apr 6 10:32:03 EDT 2014
How far is it from your rig to the entrance point? How high in
frequency do you wish to go?
On HF you can run a short distance with coax and then use a 1:1 or 4:1
balum at the outside side of the entrance point. The loss will be very
little depending on the distance and HF freq.
I have used the parallel coax but with shields tied together at both
ends as a pass through a thick basement wall. I didn't use that method
for a long distance
since I was concerned that it might be more unbalanced than balanced.
Hope other will chime in.
On 4/6/2014 2:43 AM, Tony wrote:
> My shacks location makes it difficult to keep ladder line away from
> other cables that enter the house. Someone suggested I use 2 runs of
> RG-11 coax in parallel to route the coax inside the house and then
> connect the two to the ladder line outside.
> The coax shields would connect to the tuner ground and the center
> conductors to the tuner output terminals. The shields are left open at
> the end where the coax center conductors connect to the ladder line.
> Has anyone tried this with a doublet?
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