Re: {Collins} Coax interconnect cables



IMHO, the main thing to look out for is whether the ground side of the plug makes firm contact to the shell of the jack. It's impossible to tell for sure from the pictures, but some of the "tulip" designs as in G and H tend to lose tension . It might be worthwhile to go to Radio Shack and look at some of their better quality RCA-type audio connectors.

73
Bob


On 2012-12-29 7:58 PM, Eugene Balinski wrote:
I just picked up a couple of Switchcraft RCA connectors,
  P/N 3502 and a 3502A.  The 3502A has a longer ground tang
so it will be an experiment to see what is best...

  http://www.mouser.com/MobileCatalog.aspx?page=1355

Not sure if they were the best, but they look nice.  I also
found an old Radio Shack RCA connector with a hollow
solderable pin.  Works well with RG-58.  Unfortunately they
changed the design for the current version.

73
K1NR


On Sat, 29 Dec 2012 15:14:20 -0800
  "John" <gr8dxr@xxxxxxxxxxxx> wrote:
Speaking of RCA connectors for the interconnecting
cables...

What manufacture and maybe vendor supplies a good quality
RCA connector to use when making up your cables?

Anyone have part numbers?

Where can I buy them?

73 John N7MZ


----- Original Message ----- From: "Scott Johnson"
<scottjohnson1@xxxxxxx>
To: "'Jerry Kessler'" <N4JL@xxxxxxx>; "'Jim Fox'"
<w0hfg@xxxxxxxxxxx>; "'Collins Reflector'"
<collins@xxxxxxxxxxxxx>
Sent: Saturday, December 29, 2012 2:38 PM
Subject: Re: {Collins} Coax interconnect cables


For the sake of the connectors on the S-line, I would
stick with RG-58C/U,
as it is much more flexible, and places less strain on
the connectors.  I
would doubt anyone could see a difference in signal
attenuation, with
short interconnects at HF, the bulk of the attenuation
is attributable to
the connector interface.

My zwei pfennig,

Scott W7SVJ

-----Original Message-----
From: Collins [mailto:collins-bounces@xxxxxxxxxxxxx] On
Behalf Of Jerry
Kessler
Sent: Saturday, December 29, 2012 2:38 PM
To: Jim Fox; Collins Reflector
Subject: Re: {Collins} Coax interconnect cables

Jim,

If you already have it to use, then RG-400 would
complement the high
quality of your Collins equipment.  At HF, and for the
lengths typically
used for RF interconnections, there is not much point
in talking about the
difference in loss between RG-400 and the RG-58 type
cables, but the power
handling is superior for RG-400 -- approximately 4KW at
20 meters, which
means that it is also suitable for amplifier RF output
interconnect
applications.as well, and is less bulky to use around
the shack compared
to RG-8 type cabling.  Another noteworthy aspect of
RG-400 is that it is double shielded, keeping the RF
signal better
contained and minimizing extraneous coupling from other
RF cables or
sources.  I use both RG-400 and RG-142 around the shack
for almost all RF
interconnections.  Both of these cables are double
shielded, silver-plated
copper conductors and PTFE (Teflon) dielectric.  RG-400
has a stranded
inner-conductor and RG-142 is solid.

Relative to KWM-2 and S-Line, the drawback to
RG-400 or RG-142 is its stiffness compared to
RG-58 or most RG-8X cables.  The stiffer cables may be
a problem with
radios whose phono jack antenna connections have become
worn and weak over
the years, leading to more mechanical strain on already
weakened
connectors.  I have had consistent good luck in making
the RG-400 and
RG-142 work in this situation by using a BNC-to-phono
adapter that results
in a physically tight mechanical connection to the
radio.  Accordingly, a
male BNC would then be used on the S-Line end of the
RG-400 cable.  The
adapter I use is Radio Shack Part No. 278-301, which is
gold-plated and of
high quality construction.  A non-gold version is also
available under
Part No. 278-250.

Good Luck with your S-Line cabling.

Jerry Kessler
N4JL


At 12:37 PM 12/29/2012, Jim Fox wrote:
Has anyone tried using RG 400 coax for the
interconnecting cables on
their S-line or KWM-2 ? It’s very high quality and
about the same
size as RG 58 ?  Happy New Year to all CCA members..
Jim / w0hfg
AC12-12725
_______________________________________________
SHARE THE FUN: JOIN THE COLLINS COLLECTORS ASSOCIATION
TODAY !
http://www.collinsradio.org/?page_id=37 NETS:
Tues & Thur: 3.805 MHz-2000 Central + Fri: 3.895
MHz-2000 Pacific   SUNDAYS: 14.263 MHz-2000
UTC  +  AM Net: 29.050 MHz-1200 Central   1st
Wednesday AM Net 3.880 MHz-2000 local (ET, CT, MT, PT)
The Collins
Reflector reserves the right to refuse access to
anyone. LIST HELP?
ADMIN
EMAIL:  collins-owner@xxxxxxxxxxxxx This ONLY goes to
the list admins
and does not post to the group!
_______________________________________________
SHARE THE FUN: JOIN THE COLLINS COLLECTORS ASSOCIATION
TODAY !
http://www.collinsradio.org/?page_id=37

NETS: Tues & Thur: 3.805 MHz-2000 Central + Fri: 3.895
MHz-2000 Pacific
  SUNDAYS: 14.263 MHz-2000 UTC  +  AM Net: 29.050
MHz-1200 Central
  1st Wednesday AM Net 3.880 MHz-2000 local (ET, CT, MT,
PT)
The Collins Reflector reserves the right to refuse
access to anyone.
LIST HELP?  ADMIN EMAIL:  collins-owner@xxxxxxxxxxxxx
This ONLY goes to
the list admins and does not post to the group!

_______________________________________________
SHARE THE FUN: JOIN THE COLLINS COLLECTORS ASSOCIATION
TODAY !
http://www.collinsradio.org/?page_id=37

NETS: Tues & Thur: 3.805 MHz-2000 Central + Fri: 3.895
MHz-2000 Pacific
  SUNDAYS: 14.263 MHz-2000 UTC  +  AM Net: 29.050
MHz-1200 Central
  1st Wednesday AM Net 3.880 MHz-2000 local (ET, CT, MT,
PT)
The Collins Reflector reserves the right to refuse
access to anyone.
LIST HELP?  ADMIN EMAIL:  collins-owner@xxxxxxxxxxxxx
This ONLY goes to the list admins and does not post to
the group!

_______________________________________________
SHARE THE FUN: JOIN THE COLLINS COLLECTORS ASSOCIATION
TODAY !
http://www.collinsradio.org/?page_id=37

  NETS: Tues & Thur: 3.805 MHz-2000 Central + Fri: 3.895
MHz-2000 Pacific
   SUNDAYS: 14.263 MHz-2000 UTC  +  AM Net: 29.050
MHz-1200 Central
   1st Wednesday AM Net 3.880 MHz-2000 local (ET, CT, MT,
PT)

The Collins Reflector reserves the right to refuse access
to anyone.

LIST HELP?  ADMIN EMAIL:  collins-owner@xxxxxxxxxxxxx
This ONLY goes to the list admins and does not post to
the group!
---------------------------------------------------------------------
Web mail provided by NuNet, Inc. The Premier National provider.
http://www.nni.com/
_______________________________________________
SHARE THE FUN: JOIN THE COLLINS COLLECTORS ASSOCIATION TODAY !
http://www.collinsradio.org/?page_id=37

  NETS: Tues & Thur: 3.805 MHz-2000 Central + Fri: 3.895 MHz-2000 Pacific
   SUNDAYS: 14.263 MHz-2000 UTC  +  AM Net: 29.050 MHz-1200 Central
   1st Wednesday AM Net 3.880 MHz-2000 local (ET, CT, MT, PT)

The Collins Reflector reserves the right to refuse access to anyone.

LIST HELP?  ADMIN EMAIL:  collins-owner@xxxxxxxxxxxxx
This ONLY goes to the list admins and does not post to the group!





This archive was generated by a fusion of Pipermail (Mailman edition) and MHonArc.