"Jim Weir" wrote in message
...
Why would you do that? Solid has less loss. If you are worried about it
flexing too much and work-hardening (or breaking) the center conductor,
use a
strain relief of shrink sleeving at both ends.



For less than 10 feet there is no noticable differance in the loss of a
solid vers stranded center conductor for the same size coax. When used for
jumpers that are going to be moved alot such as with a HT then the wire
will work harden and break.. Maybe in the middle and not at the very end
near the connector. More than likely it will be about 4 to 6 inches from
the HT end.

Yes.

"Richard Clark" wrote in message
...
On Sun, 28 Mar 2004 14:39:58 -0500, "Ralph Mowery"
wrote:
then the wire will work harden and break

Copper?

On Sun, 28 Mar 2004 18:55:40 -0000, (Dave Platt)
wrote:

In article ,
Richard Clark wrote:

then the wire will work harden and break

Copper?

That's my experience, and a few minutes of Google-searching the Web
comes up with numerous references stating that copper does suffer from
work hardening after cold-deformation. The extent depends on the
purity of the copper and on what other metals it has been alloyed
with. [Lead is apparently one of the few metals not subject to work
hardening.]

This process can be reversed by annealing, but that's a bit tricky to
do if the copper is already part of a coaxial cable :-)

With some experience working with drawing wire (and I don't mean
artistically) I can confirm that most metals, copper and silver
included, tend to work harden. OFHC copper is better than most copper
alloys.

Gold is one of the few that does not, which is why certain types of
jewelry and leaf can only be made with reasonably pure gold.

Annealing at the right temperature for the particular metal of alloy
will make it malleable again, but those temperatures are not
compatible with plastic or rubber insulations.

Happy trails,
Gary (net.yogi.bear)
------------------------------------------------
at the 51st percentile of ursine intelligence

Gary D. Schwartz, Needham, MA, USA
Please reply to: garyDOTschwartzATpoboxDOTcom

On Sun, 28 Mar 2004 19:33:36 GMT, Richard Clark
wrote:

C'mon, now guys, let's worry about what is likely to break, not about
everything that might fail. May as well take out an
asteroid-collision policy.

True.

But a couple of weeks ago, March 18th, an asteroid about 100 feet in
diameter missed the Earth by 26,500 miles.

Better pay up the premiums on that policy.

Happy trails,
Gary (net.yogi.bear)
------------------------------------------------
at the 51st percentile of ursine intelligence

Gary D. Schwartz, Needham, MA, USA
Please reply to: garyDOTschwartzATpoboxDOTcom

Dustin

Or -- I have several BNC male to SMA male adapters that I dont consider to
be precious. I'm in the Los Angeles area. Digi-Key seems to have alot of
coax connectors, and adaptors

Jerry.





"Jim Weir" wrote in message
...
Use RG-174. Finding an inexpensive SMA connector for RG-58 is difficult.

Jim


"Dustin"
shared these priceless pearls of wisdom:

-Hello, I am going to be making some adaptor harnesses for my HT, they
are
-going to have a PL-259 on one end and a SMA male end on the other, my
-question is are the center conductor's inside the RG-58 and RG-174 the
same
-diameter because I see all the jumper harness's that are available
-commercially made of RG-174, but when I see DIY pages they are made of
-RG-58, and I just want to make sure. I read that RG-58 has alot less
loss
-and is cheaper. Thanks
-
-

Jim Weir, VP Eng. RST Eng. WX6RST
A&P, CFI, and other good alphabet soup

From: Jim Weir
Date: 3/28/04 1:04 PM Eastern Standard Time
Message-id:

Why would you do that? Solid has less loss. If you are worried about it
flexing too much and work-hardening (or breaking) the center conductor, use a
strain relief of shrink sleeving at both ends.

Jim
---------------------------------------------------------------
Solid is fine base applications.
In mobile or portable use it is a failure waiting to happen.
NOT IF----------WHEN--PERIOD

In over 40 years of experience in mobile communications the 2nd thing I check
is the '58 at the pl259.(first being the fuse) 95% of the time broken center
conductor. Funny I've never seen this happen with stranded.
Go Figure
KC*VIF
Greg Z
to thine own sound be true

(Dave Platt) wrote in message ...
In article ,
Richard Clark wrote:

then the wire will work harden and break

Copper?

That's my experience, and a few minutes of Google-searching the Web
comes up with numerous references stating that copper does suffer from
work hardening after cold-deformation. The extent depends on the
purity of the copper and on what other metals it has been alloyed
with. [Lead is apparently one of the few metals not subject to work
hardening.]

This process can be reversed by annealing, but that's a bit tricky to
do if the copper is already part of a coaxial cable :-)

.. . . no sweat, just run a 2M kilowatt thru the 174 and I guarantee
the center conductor will get "annealed" . .

In article ,
Brian Kelly wrote:

This process can be reversed by annealing, but that's a bit tricky to
do if the copper is already part of a coaxial cable :-)

. . . no sweat, just run a 2M kilowatt thru the 174 and I guarantee
the center conductor will get "annealed" . .

Yeah, but once the annealing has been completed, I doubt that the
cable will still have a 50-ohm characteristic impedance ;-)

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

Jim Weir wrote:

Why would you do that? Solid has less loss. If you are worried about it
flexing too much and work-hardening (or breaking) the center conductor, use a
strain relief of shrink sleeving at both ends.

Jim



Use RG-58A or C
Stranded, flexible, used for test leads and jumpers for generations.

Loss difference over a foot or so of jumper between even RG-174 and
hardline is insignificant assuming you are not running a microwave HT.
Even at 1GHz it won't amount to much.

Dave