Service Monitors - Cables

Status

bsdam

Contributing Member
CS Forums $upporter
Joined
Oct 2, 2012
Messages
34
What does everyone use for RF cables on their service monitors? I'm looking for some high-quality, low-loss, fairly flexible cables to use on my service monitor. Just wondering what others were using.

TIA,

-b

Could a mod move this to the Test Equipment Forum? Sorry about that.
 
Last edited:

BobbyBoucher

Prolific Contributor
CS Forums $upporter
Joined
Nov 28, 2012
Messages
287
I like the RG142 for nice good quality cables. For low cost I use CNT-195-FR because it uses the same connectors as RG58 and I can get the cable for around $1.50 a meter.
 

com501

Prolific Contributor
CS Forums $upporter
Joined
Jan 18, 2013
Messages
2,908
I use RG-223, pretty much the same as RG-142.
 
OP
B

bsdam

Contributing Member
CS Forums $upporter
Joined
Oct 2, 2012
Messages
34
Excellent, Thanks for the suggestions. I appreciate it!
 

EF_John

Regular Member
Joined
Dec 24, 2012
Messages
23
You really do not want to use RG-142 for testing on the bench. It has a solid center conductor; silver plated steel, which under repeated bending and flexing will break, and/or cause an intermittent connection.
RG-400 which is the same overall diameter as RG-142, and double shielded, and uses the same connectors as 142, but RG-400 has a silver plated stranded center conductor, which, for bench testing, is an ideal choice since your going to flexing and bending the coax repeatedly. RG-223 is also a great choice on test cables as well and similar in size and electrical characteristics to RG-400.
-just my 2 cents.
 
Last edited:

Ice-T

Prolific Contributor
Joined
May 30, 2012
Messages
229
You really do not want to use RG-142 for testing on the bench. It has a solid center conductor; silver plated steel, which under repeated bending and flexing will break, and/or cause an intermittent connection.
RG-400 which is the same overall diameter as RG-142, and double shielded, and uses the same connectors as 142, but RG-400 has a silver plated stranded center conductor, which, for bench testing, is an ideal choice since your going to flexing and bending the coax repeatedly. RG-223 is also a great choice on test cables as well and similar in size and electrical characteristics to RG-400.
-just my 2 cents.

Good note on the RG-142. Although not often, I do occasionally have to replace connectors after a lot of use due to the solid center you mention. Will look to use RG-400 or 223 in the future.
 

motorola_otaku

Prolific Contributor
Joined
Jul 11, 2012
Messages
1,137
I've used both 142 and 400. I have 400 cables in my kit that are over a decade old and haven't experienced any internal breakage or intermittent connection issues.

Both 142 and 400 have Teflon center insulators that will withstand a lot of heat, so if at all possible crimp and solder the tips.
 

Microwave Mike

Regular Member
Joined
Jun 28, 2012
Messages
20
I find that 142 cable to be a little stiff. 400 cable with the stranded center conductor is better. Works at higher frequencies, I think 18 Ghz.
The top end cable I like for use with my Network analyzer is Gortex cable. Cost a lot but is very flexable and will not change phase or impedance with bending.
For just plane old test cable that is easy to use and not cost a fortune I like Ponoma cables. 48 and 72 inch BNC ends. They use a good RG-58 type of coax with crimp connectors. These will work with most of your common measurments. I keep a set with my service monitor.

mm
 

ke4ahr

Prolific Contributor
CS Forums $upporter
Joined
Apr 26, 2013
Messages
113
RG-400. I buy it in ten-foot lengths at the hamfest for $10. Same diameter, no solid conductor issues.
 
Status