Dual Coax Antenna
 

I was sitting around the shack and digging through my junk boxes and found a
leftover chunk of dual RG-6 coax left over from a sat dish install here. Its
about 60 feet long so I peeled back the center insulators on both ends and
ran one through my open wire line (4 to 1) balun on my old tuner and hung
two ten foot chunks of wire on the other center conductors. The shields
arent connected or grounded. (Dual coax feed with center conductors only)

This thing picks up like gangbusters! I'm going to replace the coax in my
250 foot flat top dipole tomorrow and see how it works out.

Anyone else ever try this kinda feed?

Shorty

"Shortround" wrote in message
...
I was sitting around the shack and digging through my junk boxes and found
a
leftover chunk of dual RG-6 coax left over from a sat dish install here.
Its
about 60 feet long so I peeled back the center insulators on both ends and
ran one through my open wire line (4 to 1) balun on my old tuner and hung
two ten foot chunks of wire on the other center conductors. The shields
arent connected or grounded. (Dual coax feed with center conductors only)

This thing picks up like gangbusters! I'm going to replace the coax in my
250 foot flat top dipole tomorrow and see how it works out.

Anyone else ever try this kinda feed?

Shorty


If the shields are not being used, the coax acts as nothing more than a
length of wire- not as a coaxial cable.

Dale W4OP

= = = "Dale Parfitt" wrote in message
= = = ...
"Shortround" wrote in message
...
I was sitting around the shack and digging through my junk boxes and found
a
leftover chunk of dual RG-6 coax left over from a sat dish install here.
Its
about 60 feet long so I peeled back the center insulators on both ends and
ran one through my open wire line (4 to 1) balun on my old tuner and hung
two ten foot chunks of wire on the other center conductors. The shields
arent connected or grounded. (Dual coax feed with center conductors only)

This thing picks up like gangbusters! I'm going to replace the coax in my
250 foot flat top dipole tomorrow and see how it works out.

Anyone else ever try this kinda feed?

Shorty


If the shields are not being used, the coax acts as nothing more than a
length of wire- not as a coaxial cable.

Dale W4OP

DP / W4OP,

Seems like it would simply function like a 'parallel wire pair'.
AKA: Twin-Lead / Ladder-Line having an unknown impedance ?
- Maybe somewhere between 37.5 Ohms to 150 Ohms ?

iane ~ RHF

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