[Elecraft] 75ohm Impedance question K3S and Antenna side.

Victor Rosenthal 4X6GP k2vco.vic at gmail.com
Tue Mar 31 14:00:22 EDT 2020


Forgot to add: I used 28 MHz for the calculations in my previous email. 
Losses will be lower on lower bands.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 31/03/2020 19:39, AE4PB at carolinaheli.com wrote:
> I'm about to pull the trigger on a Hustler 6BTV (6-Band, 80, 40, 30, 20, 15,
> 10 meters). It will be temporarily installed (with radials) about 200' away
> from my house. I'd like to run CATV "hardline" but I'm not sure how to get a
> 2:1 UnUn with a wide enough bandwidth on the antenna side (the impedance
> with 60ish radials should be in the 35ohm range). In addition I believe I
> will be ok on the RIG side to just connect RG6 (75ohm) to the hardline and
> direct to the rig since my K3S can match the impedance. Is this essentially
> correct and is there a better way to do this? I'm trying to minimize losses
> for the distance run and still have a decent transmitted signal.
> Thanks in advance.
> Yeah, I should know this stuff but I can't know everything 100%.
> 
> 73 es
> De AE4PB
> ..
>   
> 
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