Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default Making my own coax cables

I would like to make my own custom-length coax cables. What are the
best cable cutter, stripper and crimper for the money? (I'm assuming
three seperate tools here). I don't want to spend too much money since
this is just for around the house and not pro, but I don't want cheap
junk that's a waste of money either.

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Travis Jordan
 
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Default Making my own coax cables

Travis Jordan wrote:
What kind of coax are you planning on using? There is a big
difference between RG-174/U and LMR400.


And what connectors? BNC, F, Type N, SMC, Mini UHF, TNC, or ?


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toronado455
 
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Default Making my own coax cables


Travis Jordan wrote:
Travis Jordan wrote:
What kind of coax are you planning on using? There is a big
difference between RG-174/U and LMR400.


And what connectors? BNC, F, Type N, SMC, Mini UHF, TNC, or ?


F

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g. beat
 
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Default Making my own coax cables

"toronado455" wrote in message
oups.com...

Travis Jordan wrote:
Travis Jordan wrote:
What kind of coax are you planning on using? There is a big
difference between RG-174/U and LMR400.


And what connectors? BNC, F, Type N, SMC, Mini UHF, TNC, or ?


F


BTW, Cable does make a difference.

I now prefer Belden 7916A RG-6/U for backbone coax runs in a house from
cable or satellite drop point.
It is swept to 3 GHz .. great for any future bandwidth expansion.
a.. 18 awg solid bare copper center conductor , the best choice for baseband
thru broadband applications

Many CATV companies are installing coax that has ratings at least 2 GHz
swept.

I use to use Belden 1189A (which is good to 1 GHz - 18 awg solid copper
covered steel center conductor)
Don't remove copper covering from steel inner conductor)

For RG-59/U small runs - Belden 9275 is good !
RG59/U CATV Coax
20ga Bare Copper Covered Steel Center Conductor
Gas-injected foam polyethylene insulation
Duobond® II foil shield and 61% aluminum braid




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Travis Jordan
 
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Default Making my own coax cables

toronado455 wrote:
Travis Jordan wrote:
And what connectors? BNC, F, Type N, SMC, Mini UHF, TNC, or ?


F


TV coax...OK.

For RG-6/U I just use a good pair of diagonal cutters for cutting.

For stripping and crimping I like these two reasonably priced tools.
http://www.partsexpress.com/pe/showd...number=360-016
http://www.partsexpress.com/pe/showd...Number=360-048


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toronado455
 
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Default Making my own coax cables

Travis,

Thanks for the links. I picked up a good Data Shark round cable cutter
at Fry's yesterday for only $6. I also got a cheap, generic crimping
tool for $7.50 just to see how they work. I tried crimping on an
F-connector yesterday for the first time. It took several tries and I
cracked the sleeve on the connector on the first try. I don't have a
stripper yet so I'm still manually stripping the sheidling. They had an
"RCA" brand stripper for $20 that I almost got but it looked the same
as the one you posted for only $10 so I think I'll get that one
instead.

The F-connectors I got have really short sleeves and the inner tube
thing that fits onto the dielectric is smallish. I've seen different
types of F-connectors and some of my coax cable (labeled Belden 8228)
has a larger diameter dielectric. So I guess I'll need to get some
different F-connectors.


Travis Jordan wrote:
toronado455 wrote:
Travis Jordan wrote:
And what connectors? BNC, F, Type N, SMC, Mini UHF, TNC, or ?


F


TV coax...OK.

For RG-6/U I just use a good pair of diagonal cutters for cutting.

For stripping and crimping I like these two reasonably priced tools.
http://www.partsexpress.com/pe/showd...number=360-016
http://www.partsexpress.com/pe/showd...Number=360-048


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JR North
 
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Default Making my own coax cables

Home Despot has a nice cutter/stripper and crimp tool set for about $26.
Works well on RG-6 and 59. Completely redid my cable system with them.
Use only the gold terminals, spltters and crimp barrels, and high
quality coax cable.
JR

wrote:

I would like to make my own custom-length coax cables. What are the
best cable cutter, stripper and crimper for the money? (I'm assuming
three seperate tools here). I don't want to spend too much money since
this is just for around the house and not pro, but I don't want cheap
junk that's a waste of money either.



--
--------------------------------------------------------------
Home Page:
http://www.seanet.com/~jasonrnorth
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Michael Ware
 
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Default Making my own coax cables


Use only the gold terminals, spltters and crimp barrels,


Waste of money, no benefit.


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Jeff Liebermann
 
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Default Making my own coax cables

JR North hath wroth:

Use only the gold terminals, spltters and crimp barrels, and high
quality coax cable.


Very bad idea.

Gold is great for corrosive or marine atmospheres. If you live in a
salt fog, then gold connectors are the way to go.

However, there are problems. You must use gold on both the plug and
receptacle. Mixing a gold connector with a tin, nickel, cadmium, or
solder plate, connector will result in enough electrolysis to trash
the non-gold side in short order. If you're supplying gold plugs, but
the customer has a device with non-gold receptacles, there may be
problems.

Gold is also only good for "dry" loads that do NOT carry any DC. This
is correct for most CATV applications, but not with DBS dish
receivers. These have DC power to the LNB going through the coax.
Connect and disconnect a gold connection with the power live and a
load, and even the small current will blow a hole through the gold
plating.

The bad news is that this also applies to ALL parts of the connection.
Tin plated coax braid and aluminized mylar shields will act the same
way as a mismatched connector material selection. To do it right,
literally everything has to be gold or there will be electrolysis at
the junction. Since nobody makes gold plated RG-6/u cable, I suggest
you forget the idea of using just gold plugs.


--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
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Mike Berger
 
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Default Making my own coax cables

The "gold" plugs you find at the big box stores are more "goldeny"
than anything else. I'm not convinced that there's any gold in them
at all.

Jeff Liebermann wrote:
JR North hath wroth:


Use only the gold terminals, spltters and crimp barrels, and high
quality coax cable.



Very bad idea.

Gold is great for corrosive or marine atmospheres. If you live in a
salt fog, then gold connectors are the way to go.

However, there are problems. You must use gold on both the plug and
receptacle. Mixing a gold connector with a tin, nickel, cadmium, or
solder plate, connector will result in enough electrolysis to trash
the non-gold side in short order. If you're supplying gold plugs, but
the customer has a device with non-gold receptacles, there may be
problems.

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Jeff Liebermann
 
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Default Making my own coax cables

Mike Berger hath wroth:

The "gold" plugs you find at the big box stores are more "goldeny"
than anything else. I'm not convinced that there's any gold in them
at all.


Well, I have a few of the consumer gold connectors around. They don't
tarnish so I presume they're really gold plated. MIL-G-45204 spec
connector plating is mostly 50 microns thick. Cheap commercial flash
plating goes down to perhaps 5 microns. I couldn't find any specs on
the consumer variety other than most claim that it's 24k (pure) gold.

Anyway, it really doesn't matter with RG-6/u because the all important
center conductor is bare copper. There is no center pin on an F
connector as it's just an extension of the coax cable center wire. All
that nice gold to make a better ground connection?

--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558


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John
 
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Default Making my own coax cables

"Jeff Liebermann" wrote in message ...
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558


Jeff, those home photos are pretty amazing. You should register
with the EPA... lol


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