Hi Mark,
If you have made your clean cut of the dielectric, then try pulling off the
dielectric straight in line with the plane of the center conductor, but
twist it as you are pulling it off, the twist going the same direction as
the lay of the strands (from an end view of the conductor this would be
clockwise).
Or, before the cut into the dielectric, using a safety razor blade, cut
the dielectric along the full length of the dielectric that will be removed,
then do the lateral cut into the dielectric which you normally do to remove
it. Then you can peel it open like a sandwich to take it off the ctr. cond.
Hope this helps. We have strip tools that I, and commercial installers,
have found to be the best available, and at lower cost than a popular one
sold by one of the ham dealers. Not on our web site yet, just contact me
direct.
73, Steve , K1PEK,
DAVIS RF Co., Div. of Orion Wire Co., Inc.
Wire, Cable, RF Connectors and wire aerial parts. LMR, Heliax, Eupen
Commercial / Military / & Custom Cable Design
tel: 978-369-1738 Fax: 978-369-3484
www.DavisRF.com
----- Original Message -----
From: "Mark Spencer" <mspencer12345@yahoo.ca>
To: "Steve Davis -Davis RF Co." <sdavis@davisrf.com>
Cc: <towertalk@contesting.com>
Sent: Tuesday, January 06, 2009 8:08 AM
Subject: Re: [TowerTalk] Crimper for Belden 9913 - Response DAVIS RF Co.
Sorry not sure what happened with the formatting here.. I'll try again..
Steve With regards to the center conductor expanding if it is cut after
removing the dielectric, I have noticed this with 9913F7 as well.
Is there a special tool or technique that can be used to minmize this
Best regards
Mark
VE7AFZ
________________________________
From: Mark Spencer <mspencer12345@yahoo.ca>
To: Steve Davis -Davis RF Co. <sdavis@davisrf.com>
Cc: towertalk@contesting.com
Sent: Tuesday, January 6, 2009 5:05:36 AM
Subject: Re: [TowerTalk] Crimper for Belden 9913 - Response DAVIS RF Co.
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boundary="0-1296860631-1231247136=:69853"
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Steve:=0A=0AWith regards to the center conductor expanding if it is cut aft=
er removing the dielectric, I have noticed this with 9913F7 as well.=A0=A0=
=A0 Is there=A0special tool or technique that can be used to minmize this ?=
=0A=0ABest regards=0AMark=0AVE7AFZ=0A=0A=0A=0A=0A__________________________=
______=0AFrom: Steve Davis -Davis RF Co. <sdavis@davisrf.com>=0ATo: Roger (=
K8RI) <K8RI-on-TowerTalk@tm.net>=0ACc: mspencer12345@yahoo.ca; towertalk@co=
ntesting.com=0ASent: Monday, January 5, 2009 8:01:02 PM=0ASubject: Re: [Tow=
erTalk] Crimper for Belden 9913 - Response DAVIS RF Co.=0A=0A=0AHi Roger,=
=0A=0AThe ctr. cond. on LMR 400 (solid)=A0 and 400 UF (strnd'd)=A0 are both=
.108; however, cutting the ctr cond of the stranded=A0 400 UF=A0 , AFTER r=
emoving the dielectric will expand the OD....and sometimes dealing with the=
stranding anyway will cause it to expand a bit .=0A=A0 Ref. whether=A0 cri=
mp pins vs. clamp pins are different:=A0 for the most part they are differe=
nt, in the below around .500" OD cables; however, some mfrs. do have a few =
sizes and types that they are the same.=0A=A0 Ref. soldering crimp type pin=
s:=A0 in production modes, crimps are just crimped due to labor time/cost, =
but in less than production line app's,=A0 I , and many before me, recommen=
d a little added security (electrically and mechanically) by soldering the =
center pin of crimp types, after crimping.=0A=A0 As many other things, "a l=
ittle of everything is involved"... not cut and dry.=0ABottom line: for mos=
t ham use, crimp or clamp:=A0 both are very good mechanically, when done ri=
ght and not hard to do it right.=A0 =A0 Crimps are less aggravating and we =
have excellent tools to use at less than $ 40 for the tool, $ 23.50 for mul=
ti cable die, and this tool is one of few out there that will let you chang=
e the die.=A0 I've used the best commercial production tools and this one i=
s fine even for repeat production...ratchet release at proper torque on die=
, etc.=0A=A0 And Roger, you are a testimony to a "satisfied crimping ham"=
=A0 HI=0A=0A73,=A0 Steve ,=A0 K1PEK,=0A=0ADAVIS RF Co.,=A0 Div. of Orion Wi=
re Co., Inc.=0A=0AWire, Cable, RF Connectors and wire aerial parts.=A0 LMR,=
Heliax, Eupen=0A=0ACommercial / Military / & Custom Cable Design=0A=0Atel:=
=A0 978-369-1738=A0 =A0 Fax:=A0 978-369-3484=0Awww.DavisRF.com=0A=0A=0A=0A=
=0A----- Original Message ----- From: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.=
net>=0ATo: "Steve Davis -Davis RF Co." <sdavis@davisrf.com>=0ACc: <towertal=
k@contesting.com>=0ASent: Monday, January 05, 2009 9:49 PM=0ASubject: Re: [=
TowerTalk] Crimper for Belden 9913 - Response DAVIS RF Co.=0A=0A=0A> =0A> A=
thought here:=A0 I think he's talking about the flexible version with the =
stranded center conductor which like the LMR-400UF is a bit larger than the=
solid center conductor.=A0 Although I've always been able to get them to f=
it into the standard center pins, it sometimes takes a bit of determination=
and care.<:-))=0A> =0A> I've also noted an inconsistency in the crimp, Vs =
Clamp descriptions.=A0 One supplier told me when I wanted crimp connectors =
with solder center pins they were either one of the other, not a mix, but I=
have a number of crimp connectors for LMR-600 that use center pins designe=
d for soldering complete with the small solder hole drilled in the side. OT=
OH even if the center pin is designed for crimping it can be soldered.=0A> =
=0A> Between the die sets I have for RG-8/LMR-400/9913/9913F I have both 0.=
100 and 0.128, plus the tiny ones meant for 8X and 58 type cables.=0A> =0A>=
Steve Davis -Davis RF Co. wrote:=0A>> Mark,=A0 One of my affiliates that d=
oes=0A>> cable assembly/terminations indicates that the .128 is not a good =
die to use, unless you tin the ctr conductor and find it to be a tight fit =
after crimping. They tinn and then solder the center pin on.=A0 Finding the=
.116 die and tool handle is possible but they don't know a source, other t=
han what Amphenol is recommending, quite expensive I'm sure.=A0 Given that =
you are not in "production" mode, taking the time to tin, crimp and solder =
is certainly a thorough way of obtaining a good electric/mechanical connect=
ion to either of these cables.=0A>>=A0 I think (?) that you had a follow-up=
question, or that was somebody else... I will find that again later and an=
swer it.=0A>> =0A>> =0A> One possibility for those who really insist on cri=
mping the center conductor is to take a 0.100 die and "adjusting" it with a=
small file to 0.116 which is only 0.016 larger...IE 16 thousandths of an i=
nch isn't much.=A0 OTOH they'd want to make sure the new=A0 die is properly=
marked, or identified.=0A> =0A> 73=0A> =0A> Roger (KI8RI)=0A> =0A> =0A>> 7=
3,=A0 Steve ,=A0 K1PEK,=0A>> =0A>> DAVIS RF Co.,=A0 Div. of Orion Wire Co.,=
Inc.=0A>> =0A>> Wire, Cable, RF Connectors and wire aerial parts.=A0 LMR, =
Heliax, Eupen=0A>> =0A>> Commercial / Military / & Custom Cable Design=0A>>=
=0A>> tel:=A0 978-369-1738=A0 =A0 Fax:=A0 978-369-3484=0A>> www.DavisRF.co=
m=0A>> =0A>> =0A>> =0A>> ----- Original Message ----- From: "Steve Davis -D=
avis RF Co." <sdavis@davisrf.com>=0A>> To: <towertalk@contesting.com>=0A>> =
Cc: <mspencer12345@yahoo.ca>=0A>> Sent: Sunday, January 04, 2009 1:26 AM=0A=
>> Subject: Crimper for Belden 9913 - Response DAVIS RF Co.=0A>> =0A>> =0A>=
> =0A>>> Mark,=A0 Ctr. conductor size for 9913 and 9913F7 is .108", so spec=
'g the .116 die makes sense.=A0 however, my crimper source indicates that t=
heir .128" is the one to use for 9913.=A0 This may not be as odd as it soun=
ds because the Belden spec can vary to +- .010, and I doubt it is on the mi=
nus side.=A0 At any rate, I am checking with a reliable source on Monday to=
see if the .128 will do the job well, I suspect so as my mfr. source for t=
he crimper and die is a very good one.=A0 Will advise on Mon.=0A>>> =0A>>> =
73,=A0 Steve ,=A0 K1PEK,=0A>>> =0A>>> DAVIS RF Co.,=A0 Div. of Orion Wire C=
o., Inc.=0A>>> =0A>>> Wire, Cable, RF Connectors and wire aerial parts.=A0 =
LMR, Heliax, Eupen=0A>>> =0A>>> Commercial / Military / & Custom Cable Desi=
gn=0A>>> =0A>>> tel:=A0 978-369-1738=A0 =A0 Fax:=A0 978-369-3484=0A>>> www.=
DavisRF.com=0A>>> =0A>>> =0A>>> =0A>>> Date: Sat, 3 Jan 2009 18:00:20 -0800=
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