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[email protected] November 3rd 06 05:53 AM

Identifying coax cable.
 
Have a 100 foot roll(approx) of used coax cable which has no markings....
I do have a bunch of older RG-58 with solid center conductor, and


....[snip]....

.... How about Belden 9913? Of course, the construction of that line
is "different" enough that it would be hard to mistake it for something
else, and I assume ....


For those of us who never noticed -- or never recognized -- the
difference in the first place, could you please explain what I
should have recognized?

--Myron
--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
NRA Life Member and Rifle, Pistol, & Home Firearm Safety Certified Instructor
Certified Instructor for the Kansas Concealed-Carry Handgun license

Tam/WB2TT November 3rd 06 04:41 PM

Identifying coax cable.
 

wrote in message ...
Have a 100 foot roll(approx) of used coax cable which has no
markings....

I do have a bunch of older RG-58 with solid center conductor, and


....[snip]....

.... How about Belden 9913? Of course, the construction of that line
is "different" enough that it would be hard to mistake it for something
else, and I assume ....


For those of us who never noticed -- or never recognized -- the
difference in the first place, could you please explain what I
should have recognized?

--Myron
--


The outside diameter of the cable, like .195, .240, .260, .405,... and the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.

Tam
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and
cartridge
NRA Life Member and Rifle, Pistol, & Home Firearm Safety Certified
Instructor
Certified Instructor for the Kansas Concealed-Carry Handgun license




[email protected] November 3rd 06 05:51 PM

Identifying coax cable.
 
.... How about Belden 9913? Of course, the construction of that line
is "different" enough that it would be hard to mistake it for something
else, and I assume ....

For those of us who never noticed -- or never recognized -- the
9913 differences in the first place, could you please explain....

The outside diameter of the cable, like .195, .240, .260, .405,... and the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.


I don't understand. Are you saying 9913 has been made in ALL
of those different sizes and with ALL of those different center-
conductor gauges?

--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
NRA Life Member and Rifle, Pistol, & Home Firearm Safety Certified Instructor
Certified Instructor for the Kansas Concealed-Carry Handgun license

Tam/WB2TT November 3rd 06 10:09 PM

Identifying coax cable.
 

wrote in message ...
.... How about Belden 9913? Of course, the construction of that line
is "different" enough that it would be hard to mistake it for something
else, and I assume ....

For those of us who never noticed -- or never recognized -- the
9913 differences in the first place, could you please explain....

The outside diameter of the cable, like .195, .240, .260, .405,... and
the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.


I don't understand. Are you saying 9913 has been made in ALL
of those different sizes and with ALL of those different center-
conductor gauges?

Sorry, I thought you were talking about the original question. The base 9913
is #10 solid. 9913 Flex is stranded.

Tam
--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and
cartridge
NRA Life Member and Rifle, Pistol, & Home Firearm Safety Certified
Instructor
Certified Instructor for the Kansas Concealed-Carry Handgun license




K7ITM November 3rd 06 10:52 PM

Identifying coax cable.
 

wrote:
.... How about Belden 9913? Of course, the construction of that line
is "different" enough that it would be hard to mistake it for something
else, and I assume ....

For those of us who never noticed -- or never recognized -- the
9913 differences in the first place, could you please explain....

The outside diameter of the cable, like .195, .240, .260, .405,... and the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.


I don't understand. Are you saying 9913 has been made in ALL
of those different sizes and with ALL of those different center-
conductor gauges?


Actually, the difference I was writing about in the original posting
has to do not with whether the center conductor is solid or stranded,
but rather with the form the dielectric takes. It's a polyethylene
tube with fairly thin wall that supports the outer conductor, and
inside that, a "thread" of polyethylene with a diameter half the
difference between the inner conductor diameter and the ID of the
polyethylene tube, which is formed in a spiral to support the inner
conductor coaxially with the outer conductor. The result is that much
of the dielectric space is air (or water, if you install it
incorrectly...or get a lot of condensation in it). It's a very obvious
differentiator from the usual solid or foam dielectrics. It's also low
enough effective relative dielectric constant that the inner conductor
is particularly large, for 50 ohm line of that OD.

Cheers,
Tom


Allodoxaphobia November 3rd 06 11:04 PM

Identifying coax cable.
 
On 3 Nov 2006 14:52:12 -0800, K7ITM wrote:
.......
but rather with the form the dielectric takes. It's a polyethylene
tube with fairly thin wall that supports the outer conductor, and
inside that, a "thread" of polyethylene with a diameter half the
difference between the inner conductor diameter and the ID of the
polyethylene tube, which is formed in a spiral to support the inner
conductor coaxially with the outer conductor.


That sounds like RG-62 (93 ohm).
Video terminal cable -- 3270 and that ilk.

But, since none of the mind readers in this ng have yet to post the
dimensions, it's only a data point so far.

Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
38.24N 104.55W | @ config.com | Jonesy | OS/2
*** Killfiling google posts: http//jonz.net/ng.htm


Slow Code November 4th 06 12:16 AM

Identifying coax cable.
 
wrote in :

.... How about Belden 9913? Of course, the construction of that
line is "different" enough that it would be hard to mistake it for
something else, and I assume ....

For those of us who never noticed -- or never recognized -- the
9913 differences in the first place, could you please explain....

The outside diameter of the cable, like .195, .240, .260, .405,... and
the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.


I don't understand. Are you saying 9913 has been made in ALL
of those different sizes and with ALL of those different center-
conductor gauges?




Just go to Radio Shack. You can exchange blank stares with the clerk.

SC

Boozo November 4th 06 11:36 PM

Identifying coax cable.
 

"Slow Code" wrote in message
nk.net...
wrote in :

.... How about Belden 9913? Of course, the construction of that
line is "different" enough that it would be hard to mistake it for
something else, and I assume ....

For those of us who never noticed -- or never recognized -- the
9913 differences in the first place, could you please explain....

The outside diameter of the cable, like .195, .240, .260, .405,... and
the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.


I don't understand. Are you saying 9913 has been made in ALL
of those different sizes and with ALL of those different center-
conductor gauges?


Just go to Radio Shack. You can exchange blank stares with the clerk.

SC

Looks like I may have to as it doesn't seem to have an easy solution and
my VHF transmitter is broken.
Have a data sheet handy so might take some measurements with the vernier
calipers and see what I come up with.

Thanks for all the suggestions.

Boozo.(nothing to do with alcohol !)



an_old_friend November 5th 06 02:06 AM

sc continues crapathon
 

Slow Code wrote:
wrote in :

.... How about Belden 9913? Of course, the construction of that
line is "different" enough that it would be hard to mistake it for
something else, and I assume ....

For those of us who never noticed -- or never recognized -- the
9913 differences in the first place, could you please explain....

The outside diameter of the cable, like .195, .240, .260, .405,... and
the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.


I don't understand. Are you saying 9913 has been made in ALL
of those different sizes and with ALL of those different center-
conductor gauges?




Just go to Radio Shack. You can exchange blank stares with the clerk.

why do you keep trolling this crap into policy?

SC



Dave November 5th 06 12:58 PM

Identifying coax cable.
 

"Boozo" wrote in message
...

"Slow Code" wrote in message
nk.net...
wrote in :

.... How about Belden 9913? Of course, the construction of that
line is "different" enough that it would be hard to mistake it for
something else, and I assume ....

For those of us who never noticed -- or never recognized -- the
9913 differences in the first place, could you please explain....

The outside diameter of the cable, like .195, .240, .260, .405,... and
the
gage of the center conductor, like #10, 14, 16, 18, stranded or solid.

I don't understand. Are you saying 9913 has been made in ALL
of those different sizes and with ALL of those different center-
conductor gauges?


Just go to Radio Shack. You can exchange blank stares with the clerk.

SC

Looks like I may have to as it doesn't seem to have an easy solution and
my VHF transmitter is broken.
Have a data sheet handy so might take some measurements with the vernier
calipers and see what I come up with.

Thanks for all the suggestions.

Boozo.(nothing to do with alcohol !)


the original 9913 has a 9.5ga solid copper center conductor, the center
conductor has a spiral wrapped standoff insulator, a thin solid dielectric
layer then foil and braid shield. the od is .405" so it can't be easily
distinguished from regular rg8 without looking inside. though if it is the
original good stuff i would expect it to be well marked on the outside since
not just everyone made it. the problem is that there have been many
variations over the years on 9913, including stranded center conductors and
some variations in dielectrics.




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