eHam Forums => Mods And Repairs => Topic started by: K2HN on May 23, 2008, 10:33:04 PM

Title: RG-213
Post by: K2HN on May 23, 2008, 10:33:04 PM
Is there a secret to putting coax connectors on RG-213?  I have to do a few and finding that it's a real tight fit.  After the cable is prepared (3/4" center pin and 5/16 braid) the coax screws into the connector real hard near the end and requires a pair of pliers to twist it all the way to get the tinned braid up to the holes.

Title: RG-213
Post by: K7UNZ on May 25, 2008, 11:19:38 AM
While I've never encountered this problem myself, and I use RG-213 for all my outdoor runs, there is an old trick you might wanna try.

Just apply a little baby talc powder to the outside of the coax.

73, Jim/k7unz

Title: RG-213
Post by: W3LK on May 25, 2008, 02:55:19 PM
This happens primarily with the cheap, 99-cent PL-259s and or cheap coax. They may or may not conform to established dimensional specs.

Quality coax and quality (Amphenol) connectors almost never have these problems.


Lon - W3LK
Naugatuck, Connecticut

Title: RG-213
Post by: K2HN on May 26, 2008, 12:54:14 PM
The connectors are Amphenol and the Coax is Belden.
Can't get to much better then that.  Still a tight squeeze.  Possibly the roll of Belden I got didn't quite measure up to specs.  Have to crank the connectors on with a pair of pliers.
tnx, Jim

Title: RG-213
Post by: W3LK on May 26, 2008, 03:21:46 PM
I've not run across any combinations that tight. I usually just rub a bar of soap on the jacket and the connector body screws right on.

Even heavy skin oil will lube the jacket. :)


Lon - W3LK
Naugatuck, Connecticut

Title: RG-213
Post by: WB2WIK on May 26, 2008, 06:47:48 PM
Actually, I see that "problem" all the time and don't consider it to be a problem.

I do use "gas pliers" (slip joint pliers) to twist PL-259s on to RG-213/U and consider that pretty normal.

It takes four full rotations to twist a PL-259 on to RG-213/U, and the last twist can take a lot of torque.

It's worth it, since the resulting fitting is pretty waterproof.


Title: RG-213
Post by: KE4DRN on May 27, 2008, 02:37:07 PM

I've also my vise grips to attach the connector,
just as steve, WB2WIK, described.

the coax I had was factory fresh from the wireman,
I did notice the connectors did attach easier several
months after the coax 'aged' in my garage.

73 james

Title: RG-213
Post by: K2HN on May 28, 2008, 03:22:39 PM
Thanks for all repiies.  I managed to get the job done.  Had 10 to install.  Had to crank them all on with pliers but all turned out well.  I hadn't used any of the big stuff for quite a while and it seemed to me more of a struggle than I remembered in the past.
tnx agn,

Title: RG-213
Post by: KD8CGF on May 29, 2008, 11:12:03 AM
As I get older, practically everything I do is "more of a struggle than I remembered in the past"

Title: RG-213
Post by: WA9SVD on June 01, 2008, 05:53:13 PM
A very, VERY, VERY,light dab of liquid hand soap, spread around the outer insulation of the coax, spread around, will make "screwing on" the PL-259 easier to install.  But remember, the whole purpose IS for the plug to "screw onto" the coax, for at least a semblance of weather resistance. and to form a seal to the outside environment.