[Antennaware] G5RV balun question

[Ron Youvan]

  John AF5CC wrote:

> I have a G5RV type antenna I homebrewed. It is around 100 feet long,
> fed in the center with around 25 feet Radio Shack twin lead (300ohm).
> At the end of the twin lead is currently a HI-Q brand 4:1 voltage
> balun, and then a run of 75ohm coax to the shack.  I want to replace
> the balun with something that will keep RF off of the coax shield-I
> understand I need a current balun for this.  What are the best brands
> and models to use for this?

   It is the nature of a G5RV to not have a balun there.  You have 
something else.  Any balun should keep the RF off of the coax, I think 
the RF is getting back onto the coax below the balun somehow.

-- 
Ron - KA4INM