Author: Bill via TowerTalk <towertalk@contesting.com>
Date: Fri, 30 Oct 2020 16:31:44 +0000 (UTC)
I don't know if anyone has posted this but I get all my LMR 400 clone from a company called Jefa-Tech in Md. I've used it on my last 4 stations without a bit of a problem. It's specs are exactly th
I 2nd Bill's good experience with Jefa Tech. No problems at all and currently in use at least 7 years. 73 Darrell AB2E I don't know if anyone has posted this but I get all my LMR 400 clone from a com
Knock-off products like this are often sold by third-party salemen, who are doing nothing more than advertising and moving boxes. Specs are generated by those salesmen, not by engineers. Indeed, they
I've been using DXE400MAX, close to LMR400 specs with a stranded copper #10 center conductor. 73, Steve N6SJ Knock-off products like this are often sold by third-party salemen, who are doing nothing
I bought LMR400 once and it seemed so stiff. Does this work OK around a rotator? I also have some LMR400UF which has a stranded conductor and is much more flexible however unfortunately Times used a
John Works ok around a rotator as long as you make the service loop big enough, Also depends on whether your rotator does 360 or 450 degrees . I am currently using LMR400 on a 450 degree rotation . I
ABRIND.com 400UF is more flexible then Times Microwave 400UF. I have both types of cable in my rotor loop. I'll be ordering the ABR 400UF for any new purchases. Bob N2SCJ I bought LMR400 once and it
To be honest, I've never understood the love affair with LMR. I think it's horrible cable. You have an aluminum foil shield with tinned copper braid laid over it. I wouldn't want to solder that and
it's the LMRx00UF (ultraflex) you want, not plain LMRx00. I use LMR600UF as a jumper for my 6m antenna, at the top of the tower, and it's been doing quite well. It's made of a stranded copper core an
As has been noted, the UF jacket has poor UV resistance. It is NOT a good choice. p.s. RG213 has been known to melt... How much power were you running:) RG numbers have not been a spec for 40-50 year
Yes it's horrible cable if the application calls for hardline, but not as horrible as RG-58 or speaker wire. If the application calls for 3/8" braided cable, it's the best in most situations. IMHO of
LMR-400-UF uses a rubberized thermoplastic elastomer jacket for flexibility. Unfortunately it has been reported on towertalk to have poorer UV resistance than other coax jackets such as (LMR-400) PE
Maybe he means on the inside:-) Wes N7WS RG-213 melts? Please explain. I have been using Belden 8267 RG-213 both on the tower (in hot climates) and in the shack for decades and I have not seen anyth
RG213 is specified with 1300W on 6m 73 Peter Maybe he means on the inside:-) Wes N7WS flexibility. resistance on seen _______________________________________________ ________________________________
Check this coaxial cables: https://messi.it/en/catalogue/50-ohm-cables-ham-radio.htm 73, Maximo RG213 is specified with 1300W on 6m 73 Peter --Original Message-- From: TowerTalk [mailto:towertalk-bou
73 Peter MIL-C-17/74 (RG 213 spec) sort of says that.. It says 3700V rms maximum Figure 2 shows the "straightline" from 1200W (@50 MHz) down to 180 W (@1000 MHz), probably based on thermal limits fro
Yes, the current heats up the dielectric around the center conductor. RG393 with the same conductor size and its PTFE dielectric is specified at 9500W on 6m. 73 Peter MIL-C-17/74 (RG 213 spec) sort o
73 Peter MIL-C-17/74 (RG 213 spec) sort of says that.. It says 3700V rms maximum Figure 2 shows the "straightline" from 1200W (@50 MHz) down to 180 W (@1000 MHz), probably based on thermal limits fro
If I were to spend that money, it would be on hard line, which has lower loss and better shielding. 73, Jim K9YC _______________________________________________ ______________________________________
Remember to take duty cycle, ambient temperatures, and the coax exposure to free air into account when considering dissipation limits. Duty cycle strongly depends on transmission modes and operating