Re: F-plug need to be fully tightened?

Tim Perry wrote:
> 
> "Michael A. Terrell" <mike.terrell@[EMAIL PROTECTED]
> wrote in message
> news:9JudnZg0Ua1mLUzVnZ2dnUVZ_orinZ2d@[EMAIL PROTECTED]
> >
> > Tim Perry wrote:
> > >
> > > Michael, I'll see you tunerlube and raise you a Molykoat (s)
> > > http://www.dowcorning.com/content/news/iam_news25.asp
> >
> >
> >   The tunerlube was recommended by the manufacturers back in the '70s
&
> > '80s. We only used it in areas with a lot of salt air that quickly
> > corroded the connectors. The line taps were ****pped with plastic boots
> > with a thin film of it to seal the threads. When you have over 10,000
> > outdoor ****ts, you can't be taking the system down constantly to
replace
> > damaged ****t connectors.
> >
> >
> > > However in this application any oil, grease, or any other gunk will
> attract
> > > dust on both the  jack and the plug when they are apart. the
resultant
> > > sludge will necessitate cleaning both ends (then we can argue about
the
> best
> > > cleaning solution)
> >
> >
> >    That is what shop rags were used for.  Extra grease when a customer
> > was disconnected, and wipe it off when reconnected.
> >
> >
> > > I am not on a mission or crusade or anything. I use cleaners,
sealers,
> etc.
> > > as needed and have for years. My favorite is Caig de-oxit.
> > >
> > > Even outdoors for most instillations I find little use for chemicals
on
> F
> > > connectors. Usually tape and a Skotchcoat are sufficient for many
years
> of
> > > faithful service.
> >
> >
> >    Try that on a busy highway that got salted every time there was
much
> > snow, or anywhere close to any coastline on either ocean.
> >
> 
> My outdoor applications mostly involve satellite dishes. I have a couple
> adjacent to the NY throughway. One uses RG 11. Installed for 5 years and
no
> hint of problems.  Most problem I have are with the small offset dishes
> where the weather dome points down, drain holes get plugged and it fills
> with water.
> 
> >
> > > Large connectors the story is a bit different.  The O-rings on
conduit
> and
> > > coax transmission line should be coated with the silicon paste,
usually
> > > supplied with new parts or replacement kits.
> >
> >
> >    The .412", .500", .750" & 1.00" hardline connectors all had o-rings
> > to keep water out of the amplifier housings, splice blocks, power
> > inserters and tap housings, but not to protect the threads.  Tunerlube
> > was MUCH easier to clean up than the gelled underground drop cable.


   We used some large heliax on commercial 5 meter sat dishes that was
pressurized. I also worked with 195 kW UHF TV transmitter with large
rectangular waveguide from the diplexer to the antenna on a 1749' AAT
tower that was pressurized.  We developed a slow leak that caused severe
sync compression.  It turned out to be an 18" long crack in one of the
corner welds, above the 1400 foot level.


> I use up to 3 1/8" coax with close to 30 kW passing through it.
> the lines are pressurized to keep moisture out. The o-rings help keep
air or
> nitrogen in.
> Bullets (connectors) are silver plated and are inserted into copper
inner
> conductors with no chemical additives. The outer conductor (EIA flange)
is
> connected with bolts. I do use Vaseline on these threads as it makes
removal
> in the future easier.


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