[TowerTalk] Shunt Feed vs. Inv. L vs. Inv. V on 160-m

Jim Brown jim at audiosystemsgroup.com
Tue Dec 3 13:50:18 EST 2013


On 12/3/2013 10:37 AM, Roger (K8RI) on TT wrote:
> ry narrow band and IIRC the impedance is about 25 ohms. I've used the 
> Palstar AT5K tuner in the shack successfully with the legal limit and 
> no RF in the shack. Although probably not the best arrangement it's 
> convenient. 

It's probably better than you think.  Loss in decent coax is minimal at 
2 MHz unless it's a VERY long line, even with 4:1 SWR off resonance.  
Matched loss about 0.25 dB/100 ft for #10 copper center and equivalent 
robust copper braid.

73, Jim K9YC


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