[Elecraft] RG-8X

[Bob McGraw K4TAX]

In using ARRL Transmission Line for Windows application:

RG-8X  Belden 100 ft @ 50 MHz has 2.5 dB loss

LMR-240 Times Microwave  100 ft @ 50 MHz has 1.7 dB loss

RG -213 Belden 8267 has 1.5 dB loss at 50 MHz

RG-8 Belden 9913 has 0.88 dB loss for 100 ft at 50 MHz.  {Due to the 
nature of this line having a lot of air content, the reason for low 
loss,  it is reported to have moisture condensation issues.   Thus I 
would avoid it for outside use.}

Andrew LDF4-50A which is 1/2" hard line has 0.44 dB loss at 50 MHz

These were just a few I checked.  All values calculated for 100 ft, with 
a 1:1 SWR at 50 MHz.

I would cringe at the thought of putting up a fine antenna and loose any 
performance on transmit and receive due to feed line loss.   In my case 
I have a 4 element HyGain 6M yagi which is fed with about 75 ft of 
Andrew LDF4-50.  I selected the 4 element on a 12 ft boom as opposed to 
the 5 element on a 12 ft boom.   The side lobe pattern on the 4 element 
yagi is much cleaner, hence noise off axis is lessened.

I didn't see any polar response plots on their site so I can't comment 
on overall performance of the 6OWL6.

73

Bob, K4TAX