Discussion in 'Ham Radio Discussions' started by N8OBU, Aug 14, 2019.
ok is this 50 ohm or 75 ohm looks like if it was 75 ohm it should say lmr600-75
Let's see an end view. You usually can tell by centre conductor ratio/size.
A 75 Ohm cable would NOT have an LMR-600 number... Just sayin'
It should be 50 Ohms.
But you can use calipers or a micrometer to measure the center conductor diameter and compare it to the specification; 75 Ohm cable of the same outside diameter will have a smaller diameter center conductor.
sorry i dont have it in front of me all i got was pictures too i have a chance to pick up a spool of it
all of the 75 ohm stuff i seen said lmr 600-75 on it not that it would matter for hf anyway
Loss per 100 feet at 30mHz.
LMR600 .4 DB
RG8 .6 DB
The difference is negligible unless you're antenna run is longer than 300 feet.
i guess ill go pick it up and roll the dice
Call it 50 ohm