It's been quite a while since I installed any connectors, but it was
after I lost the use of my left hand. Instead of holding the cable in
my left hand, I use one of the small vises that use a flexible rubber
like connector to attach it to the workbench. I attach the connector
with a light touch and gentle twisting motion. If any of the strands
contacts outside the hole in the connector, it will fold back, even if
there is sufficient room in the connector, so the ability to detect that
light touch is quite important. I have tinned the tip of a few cables,
but never found it necessary to wrap the center before doing so. Again,
it was after a light pull and twisting between the thumb and first two
fingers. I only tinned a few, but never found it necessary. I do not
remember the number of the connectors, but they were silver plated with
a Teflon insulator. I believe I purchased them from Davis as well.
OTOH I have purchased cables and connectors from a number of suppliers.
Although I like LMR 400 and 600, I have pretty much gone to BuryFlex
instead of LMR-400. I still use LMR-600. Both the 400 and 600 have very
tight non repeatable bend radius without the center conductor migration.
Linear migration is still a problem on longer vertical runs.
73
Roger (K8RI)
On 11/6/2015 1:12 AM, Roger (K8RI) on TT wrote:
I use a lot of Buryflex(tm) with both N and UHF connectors. The twist
on the center conductor requires care. Too much twist and it's too
large, too little and individual strands tend to catch and buckle up.
I cut the center conductor a bit long to make sure it fits. After
crimping or soldering, I just cut it flush with the end of the
connector center pin. I do use a cable prep tool, which can sometimes
take a bit of learning and adjustment. OTOH I find Buryflex one of
the easier cables to strip.
As for the twist, I slide the center conductor between my thumb and
first two fingers, gently compressing the strands, but trying to
maintain the original twist.
73
Roger (K8RI)
On 11/6/2015 12:19 AM, Tony wrote:
All:
Davis RF Buryflex cable is a great product, but I'm finding it
difficult to get the center conductor inside the connector pin
without fraying the stranded wire. I'm using a coax prep tool and
keeping the center conductor from becoming deformed, but it seems the
connector that Davis RF recommends (RFU-507-SI) needs more chamfering
on the pin to help prevent this problem.
I was thinking about tinning the tip of center conductor and then
grinding it to a point with Dremel tool or maybe using a drill bit to
add more chamfer to the pin.
Maybe there's a connector out there that's easier to install? Any
suggestions?
Thanks,
73, Tony
73 Roger (K8RI)
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|