Electronics > Beginners

Coaxial cable RG142 RG400 LMR400 confusion.

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FriedMule:
I am reading about coaxial cable, stranding and shielding. I have stumbled upon the RG142 cable that has a solid core and the RG400 that should be about the same but with stranded core. Now have I also fund the LMR400, I have always thought that RG and LMR was about the same but to my surprise the LMR400 is with solid core like the RG142 and not at all like the RG400 stranded core. While trying to find out more about the LMR / RG I did also find the LMR400 flexible that again contained multi core!

What are the differance, LMR / RG?
what is most flexible?

tautech:
 Coax_Cable_Specification_Chart.pdf (23.38 kB - downloaded 1930 times.)

FriedMule:

--- Quote from: tautech on July 14, 2019, 05:43:29 am --- (Attachment Link)

--- End quote ---
Thank you, it looks like the RG400 is an whole other beast! And maybe the most flexible?

David Hess:
LMR cables are generally improved replacements for RG cables but they are not the same.

I really like RF-142 and RG-400 for patch cables because their double shielding makes them very tough and the Teflon dielectric makes them easy to solder.

FriedMule:

--- Quote from: David Hess on July 14, 2019, 05:47:03 pm ---LMR cables are generally improved replacements for RG cables but they are not the same.

I really like RF-142 and RG-400 for patch cables because their double shielding makes them very tough and the Teflon dielectric makes them easy to solder.

--- End quote ---
Thanks, I think of you in high regards and what you say is without any doubt from my side! When that is said, I have to look a bit confused, and please ask you where I am reading wrong in the above link? To me it did look like the RG400 was fare superior then the other.

The reason for me to choose "the best cable" is to avoid common noob errors and to shield against all the noise I have in my room, refrigiator, cheap SMPS, flickering lights and so on. On the other hand do I want to use the RG400 as standard workhorse cables between my gear, so it is maybe not to great if the cable is a stiff piece of iron or thick like a garden hose. :-)

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