VF of RG-393 is .70 as with other PTFE coax.
The highest coax loss of my station is on 2m with .7db through LCF 158-50
with UCF78-50 pigtails, total length is 75m from antenna relay to antennas.
On all the HF bands attenuation is not higher then .5db where I use LCF
78-50 with SCF 12-50 pigtails on 10-40m and RG218 on 80m and 160m.
73
Peter
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Jim
Thomson
What baffles me is that 213 U per times calculator is 1.1 db per 100
feet...at 29 mhz, yet RG-393 is 1.1 db per hundred ft. 213 has a single
copper braid. 393 has TWO silver plated braids. 213 has a 12 ga CU
stranded center conductor. 393 has a silver stranded center conductor.
VF on 213 is .66 VF on 393 is .69
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