Jay in the Mojave wrote:

Stoff wrote:

What the Best Hardware for CB
:CB
:Antenna :Booster
:Etc ...
Search for good hardware to CB all of You !


Hello Stoff:

CB: Icom Pro 746
Ant: Interceptor 10K, and LMR400 super flex coax, LMR600 after amp
Booster: Amertron 1500 driving 3CX300A7 to start with.
Ect: 50 Ft tower

Jay in the Mojave


Hello Tony:

Your e-mail address that you sent me bounced. So I will answer you here.

I use Amidon FT-240-K Toroid Cores that are 2.4 inches in diameter. I
wrap two each 12 or 14 gauge Thermaze Wires, taped together, at least 7
to 9 turns for the 10/11 meter band. I use a few more turns for the
lower bands 40/80/160. The input or output side doesn't matter which end
you use.

The Balun is installed between the coax and the dipole feed point. The
coiled wires around the Toroid Core will appear to choke off all current
going thru it, but thats not how it works. As the unbalanced currents
are applied from the coax into the two windings, the current are allowed
to be equal and opposite (just what you after) in the output being
connected to the dipole feed point in the middle of the antenna.

Also the Toroid Balun Chokes off currents wanting to travel down the
outer side of the coax shield. Without the Balun choking off these
currents wanting to run down the coax, these currents will make the
antenna work at a lower frequency, and in some case with a much worst
SWR at the frequency the dipole is cut for.

Look up Balun on Google and there are a lot of good sites explaining all
this.

I have Baluns on the Beams, and I have a cheapie Alpha Delta dipole
antenna that I have a Balun on and it works great. I would not try it
without a balun.

Jay in the Mojave