[TowerTalk] How many connectors?

[Grant Saviers]

"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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