[TowerTalk] How many connectors?

[Steve Lott]

I have 16 connectors in line for each antenna I use
In my system

Antenna to rf choke
Arrestor on the tower
Base of tower
Shack Entry Panel with arrestor
Coax switch
Amp
Band pass filter
Transceiver

Keep them dry use silver plated connectors
Water proof them, don’t rely on just tape !
Use good quality hardline and coax

Cheers!
KG5VK

On Tue, Oct 30, 2018 at 9:52 AM Grant Saviers <grants2 at pacbell.net> wrote:

> "A db here and a db there and pretty soon you lose 3db"  to paraphrase
> Everett Dirksen for those old enough to remember.  I built a spread
> sheet of cable loss by band, amp out to antenna terminals, every foot of
> every cable.  It seemed to me that good coax db's were cheap vs amp +
> tower + antenna db's.  One size doesn't fit all, I use LDF5, LDF4,
> Buryflex, and RG400.  Most every band has 3 of these 4.  Depends on band
> and lengths and purpose.  My result < 1db loss every band for the
> monobanders 80 > 10.   Connectors (good ones) hardly matter except for
> weather proofing and mechanical strength.  I use DINs for hardline for
> several reasons other than lower loss.
>
> Grant KZ1W
>
> On 10/30/2018 7:21 AM, Wayne Kline wrote:
> > My old gray matter is not  100% recall on an article  in QST or CQ
> regarding connector loss.  The tester uses a spectrum analyzer and a TDR
> with other lab equptement.
> >
> > He had  up to 20  barrels ,T. and Pl259’s  with short lengths of coax  .
> >
> > And the findings were that @ HF and insertion loss was minimal and the
> BIGEST issue was lossy CABLE
> >
> >
> >
> > Wayne W3EA
> >
> >
> >
> > Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
> >
> >
> >
> > ________________________________
> > From: TowerTalk <towertalk-bounces at contesting.com> on behalf of
> john at kk9a.com <john at kk9a.com>
> > Sent: Tuesday, October 30, 2018 7:34:09 AM
> > To: towertalk at contesting.com
> > Cc: wa6ibu at earthlink.net
> > Subject: Re: [TowerTalk] How many connectors?
> >
> > I have a lot more connectors than that and my station is quite loud.  Use
> > a quality connector such as Amphenol or Andrew/Commscope and don't
> believe
> > the old wives tale of PL-259 loss. Also use the best feedline that you
> can
> > afford.
> >
> > John KK9A
> >
> >
> > To:     <towertalk at contesting.com>
> > From:   "Paul Booth" wa6ibu
> > Date:   Mon, 29 Oct 2018 22:43:16 -0700
> >
> >
> > This may have been asked before, but I am cleaning up my system from
> > temporary to permanent installation and I was thinking about putting in a
> > patch panel.   My question is what is a reasonable number of connectors
> and
> > barrel connectors to have between antenna and amplifier.  For now the
> > antennas go directly to the amp but I'm adding antennas and was going to
> > neaten things up with a patch panel so that I would have;
> >
> > 1.       Connector at antenna
> >
> > 2.       In/out connectors through lightning protection in junction box
> > outside the house
> >
> > 3.       Patch panel inside house on other side of wall which would have
> > 1-barrel through panel, connect on backside and on frontside
> >
> > 4.       Then a connector to the amp or possible a switch (which would
> add
> > two additional connectors)
> >
> >
> >
> > Is there a rule of thumb for any of this?  Thanks.
> >
> >
> >
> > 73s, Paul, W6IBU
> >
> > _______________________________________________
> >
> >
> >
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My Ham Radio Friends