[Elecraft] RF chokes ...

[Fred Jensen]

I believe Elecraft radios have an internal bleed but I still put a 470K 
1/4 resistor in a PL-259 and use a coax tee on the back of the radio, 
antenna on one arm, resistor on the other.  I've been wary of chokes, 
fearing creating a parasitic machine, but I've never seen that happen.  
Precip static may not always be audible or visible on a panadapter, but 
the input impedance of FET's is nearly infinite and with no place to go, 
those infinitesimal charges just keep adding up the voltage on the input 
capacitance.

Yes, I know "nearly infinite" is mathematically meaningless, but you get 
the idea.

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 9/27/2019 12:30 PM, Ken G Kopp wrote:
> My 80M CF Zepp has a feedline with a 2.5 mH RF choke from each side to the
> station ground via a 2" wide flashing copper strap.
>
> Never a problem with precipitation build up.
>
> FWIW
>
> 73
>
> Ken Kopp - K0PP
> ______________________________________________________________
>