[CQ-Contest] RE: [TowerTalk] coax cables

[j.a.hermans]

----- Original Message -----
From: "Barry " <w2up at mindspring.com>
To: <towertalk at contesting.com>
Sent: Wednesday, February 05, 2003 7:10 PM
Subject: Re: [CQ-Contest] RE: [TowerTalk] coax cables


> I've had excellent success with PL-259's. Prior to scewing on the
> assembly, I LIGHTLY tin the braid and center conductor. This allows
> the solder to flow very well. I've been using a Weller gun 100/140W
> (now 30+ years old) with great success.
>
> N connectors are another sotry. Maybe it's because I rarely use them,
> but I always have trouble getting it to screw together. Seems that
> rubber spacer is too wide. If anyone can tell me what the problem is
> there, I'd appreciate it.
> Barry, W2UP

Take care on the coax diameter, and use the right N.  Each cable type has
his own connector type.
Spending less $ or € for coax connectors is not a good decision  Barry.
And be aware of VENDORS who sell coax connectors like chewing-gum. The
latter you can chew it couple of hours and then throw it away. A coax
connector should be chewed  a couple of years .....
About solder, There is  the same criteria. different temperatures for
different solder types for different applications. More, very often its
preferable not to solder at all, a good mecanical contact ( if possible)  is
even better in most cases .
But maybe this is only professional talk...... after all arent we just
amateurs.............!!!!!!
Sorry guys thats the way I think it is and should be.

Jos  on4kj

 On 5 Feb 2003 at 9:18, j.a.hermans wrote:
>
> >
> > ----- Original Message -----
> > From: "Steve Katz" <stevek at jmr.com>
> > To: <discreetly_confidential at yahoo.com>; <towertalk at contesting.com>
> > Sent: Tuesday, February 04, 2003 9:51 PM Subject: RE: [CQ-Contest] RE:
> > [TowerTalk] coax cables
> >
> >
> > >
> > > Hi Chuck,
> > >
> > > I don't know who Paul is (my name is Steve) but I think this was
> > > directed towards me.
> > >
> > > I agree with you.  Any time I see someone using a soldering "gun"
> > > for a PL-259 installation, I cringe.
> > >
> > I agree.
> > Assembling and soldering a PL should'nt be done elswhere then in a
> > workshop, with adapted tools. A few hundreds one after an other in the
> > ideal conditions is OK. It's a very critical operation if you dont
> > want cold solder which break at the first occasion, or burned joints
> > which have a transfert resistance of a few  M ohms .........Soldering
> > guns !!!!!!!! throw them away, you will be unable to control the right
> > temperature. Use a N type, sure you will have better results for
> > years. By the way, nowadays one can find PL to be mounted as N-type. (
> > at least in Germany ). Have been in charge of ANGRC and other military
> > production  for a couple of years in the late fiftees.......
> >
> > Jos on4kj
> >
> >
> >
> > > 73,
> > >
> > > Steve, WB2WIK/6
> > >
> > > > Paul,
> > > >
> > > > You hit the nail right on the head solidly and
> > > > quite soundly.
> > > >
> > > > The operative word is 900W iron!
> > > >
> > > > HEAT HEAT HEAT!! Raise the mass of metal to the
> > > > operating temp QUICKLY and then do the job. Too
> > > > may hams use a 125W gun and wonder why it takes
> > > > forever and they burn the coax, melt the
> > > > dielectric and short the inner to the outer
> > > > conductor!
> > > >
> > > > I work in MiL Quality world and I inspect this
> > > > stuff on a daily basis aside from being NASA
> > > > solder certified and nuclear industry solder
> > > > certified.
> > > >
> > > > HEAT HEAT HEAT!!  Nothing beats a GOOD PROPERLY
> > > > sized gun/iron!
> > > >
> > > > Huzzah for the excellent post!
> > > >
> > > > 73
> > > >
> > > > Chuck k3FT
> > > >
> > > > Give me that Old Time Mil-STD-454 requirement 5
> > > > anytime!
> > > >
> > > >
> > > >
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>
> --
> Barry Kutner, W2UP              Internet: w2up at mindspring.com
> Newtown, PA                     Frankford Radio Club
>
>
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