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I have more info from my friend and from his supplier. It seems that they need the 50 ohm impedance, so RG58 cable is what they want to use. The connected device is a uhf receiver with a relay to operate. They are going to use RG58 and a crimp on PL 259 plug.
Jim
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Moderator-1A2, Cabling
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Aha! That's right Jeff! Good call!
Thinnet, replacing Goldenrod ethernet.
Now what the hell kind of coax did the Wang system run on?
Sam
"Where are we going and why are we in this hand basket?"
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Aha! That's right Jeff! Good call!
Thinnet, replacing Goldenrod ethernet.
Now what the hell kind of coax did the Wang system run on?
Sam According to Black Box it was RG59.
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Joined: Feb 2005
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I know I installed 58, but for the life of me I can't remember what for. Breaker one-nine good buddy!  -Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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I did a quick search, it looks like the cards used dual coax. Way before my time 
Jeff Moss
Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
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Joined: May 2007
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Moderator-1A2, Cabling
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Aha! That's right Jeff! Good call!
Thinnet, replacing Goldenrod ethernet.
Now what the hell kind of coax did the Wang system run on?
Sam According to Black Box it was RG59. Thanks! Sam
"Where are we going and why are we in this hand basket?"
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Had to love the computer operations area back in the 80's at the Govt Auto Insurance company.
Twisted pair for standalone modems, coax for all the 3270 monitors , Twinax for the IBM s/36 word processors and twisted pair running balans when the ILEC sold management on trying it out.
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I have more info from my friend and from his supplier. It seems that they need the 50 ohm impedance, so RG58 cable is what they want to use. The connected device is a uhf receiver with a relay to operate. They are going to use RG58 and a crimp on PL 259 plug.
Jim Wow, haven't touched a PL259 in ages! - I'm betting that someone asked for a "threaded connector" and that got mis-translated to "F connector", although, given UHF radio I think I would have thought TNC or SMC.
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Joined: Feb 2005
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The PL259 is called a UHF connector. Most older gear pretty much only used it until years later when the BNC and other connectors became popular.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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The PL259 is actually a Mil Spec connector which was designed to be used on RG-8U Coax which was the gold standard RF plug connector for years and it's socket mate the SO239 just prior to WWII and for decades after. Used primarily, at first, for radar connections, it was soon found on every piece of military communications equipment.
This is a "non wimpy" solder type connector. Back then, no self respecting tech "crimped" anything.
Now, the connector must be specified with the type of coax it is to be used. The PL259 has become a generic term and when needed, the tech needs to be specific as to what coax the connector will affixed to.
Rcaman
Americom, Inc.
Where The Art And Science Of Communications Meet
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