Re: [Repeater-Builder] Re: Identify a coax and possible connector vendor
I have successfully used standard 50 Ohm type N connectors on 75 Ohm CATV coax. I purchased some brass tubing from a hobby shop that fit the ID of the center pin of the 50 Ohm connector and sweat soldered a short piece to the copper clad center conductor on the coax. With this modification the normal 50 Ohm connectors fit the 75 Ohm cable and work just fine. 73 - Jim W5ZIT --- On Fri, 5/8/09, N3QAM wrote: From: N3QAM Subject: Re: [Repeater-Builder] Re: Identify a coax and possible connector vendor To: Repeater-Builder@yahoogroups.com Date: Friday, May 8, 2009, 9:45 AM There is a whole write up on the net somewhere on how to use the 75 ohm hardline connectors and covert them to a n conector or pl-259 with pics . If you need any let me know as i am a line tech for a cable company . Unfotunetly it will be hard for me to core the cable for you to install the connectors unless you are close by. If you get to that point , i would suggest going to the local office of your cable company ( not a payment center but one that the line techs and construction department works out of) and ask them if they can core them for you. The connetors installs differently than say a PL-259 would and are either a 2 piece or a 3 piece. The coring tool actually cores out the dialetric and leaves the center conductor exposed with the shield. i do not have any here at the house to take pictures of it , nor be at work for the next month ( due to a back surgery). But feel free to contact me if you have any further questions. Keith N3QAM - Original Message - From: pontotochs To: Repeater-Builder@ yahoogroups. com Sent: Friday, May 08, 2009 10:35 AM Subject: [Repeater-Builder] Re: Identify a coax and possible connector vendor Thanks to N3QAM and Ben. You guys nailed it with the P3 500 from China. I also appreciate Ben's tip on how to use a PL259. Regards, Rick, N5RB --- In Repeater-Builder@ yahoogroups. com, "N3QAM" wrote: > > like 500 p3 or variant > > - Original Message - > From: N3QAM > To: Repeater-Builder@ yahoogroups. com > Sent: Thursday, May 07, 2009 8:18 PM > Subject: Re: [Repeater-Builder] Identify a coax and possible connector vendor > > > > > > > sounds like some 75 ohm cable self support > - Original Message - > From: pontotochs > To: Repeater-Builder@ yahoogroups. com > Sent: Thursday, May 07, 2009 8:16 PM > Subject: [Repeater-Builder] Identify a coax and possible connector vendor > > > Hi, > One of the ham repeater owners in the area has acquired a coax that I can't identify. No markings on the jacket. It has a nominal jacket diameter of 0.58 inches (it looks to be the 'standard' black PE), it has a solid aluminum shield (0.51" OD), about 0.028" thick. The dielectric looks to be the PE foam. The center conductor is copper over aluminum with a 0.11" OD (about #10 gauge). It looks to be 50 ohm based on a rough calculation. > > The interesting thing about this cable is that it has a messenger wire molded to the outside of the jacket. It is about # 10 gauge steel. It is not wrapped around the coax, just to one side, about 0.2 inches away. When I say molded, I mean that messenger wire and coax have the same black insulator jacket with a rib of the same material between them. > > I am looking for a source of connectors for this cable, so any help identifying it would be appreciated. > > Thanks for your help in advance, > Rick, N5RB >
Re: [Repeater-Builder] Re: Identify a coax and possible connector vendor
Here you go http://www.qsl.net/n9zia/wireless/75_ohm_hardline.html http://www.qsl.net/n9zia/wireless/hardline_connectors.html - Original Message - From: N3QAM To: Repeater-Builder@yahoogroups.com Sent: Friday, May 08, 2009 10:45 AM Subject: Re: [Repeater-Builder] Re: Identify a coax and possible connector vendor There is a whole write up on the net somewhere on how to use the 75 ohm hardline connectors and covert them to a n conector or pl-259 with pics . If you need any let me know as i am a line tech for a cable company . Unfotunetly it will be hard for me to core the cable for you to install the connectors unless you are close by. If you get to that point , i would suggest going to the local office of your cable company ( not a payment center but one that the line techs and construction department works out of) and ask them if they can core them for you. The connetors installs differently than say a PL-259 would and are either a 2 piece or a 3 piece. The coring tool actually cores out the dialetric and leaves the center conductor exposed with the shield. i do not have any here at the house to take pictures of it , nor be at work for the next month ( due to a back surgery). But feel free to contact me if you have any further questions. Keith N3QAM - Original Message - From: pontotochs To: Repeater-Builder@yahoogroups.com Sent: Friday, May 08, 2009 10:35 AM Subject: [Repeater-Builder] Re: Identify a coax and possible connector vendor Thanks to N3QAM and Ben. You guys nailed it with the P3 500 from China. I also appreciate Ben's tip on how to use a PL259. Regards, Rick, N5RB --- In Repeater-Builder@yahoogroups.com, "N3QAM" wrote: > > like 500 p3 or variant > > - Original Message - > From: N3QAM > To: Repeater-Builder@yahoogroups.com > Sent: Thursday, May 07, 2009 8:18 PM > Subject: Re: [Repeater-Builder] Identify a coax and possible connector vendor > > > > > > > sounds like some 75 ohm cable self support > - Original Message - > From: pontotochs > To: Repeater-Builder@yahoogroups.com > Sent: Thursday, May 07, 2009 8:16 PM > Subject: [Repeater-Builder] Identify a coax and possible connector vendor > > > Hi, > One of the ham repeater owners in the area has acquired a coax that I can't identify. No markings on the jacket. It has a nominal jacket diameter of 0.58 inches (it looks to be the 'standard' black PE), it has a solid aluminum shield (0.51" OD), about 0.028" thick. The dielectric looks to be the PE foam. The center conductor is copper over aluminum with a 0.11" OD (about #10 gauge). It looks to be 50 ohm based on a rough calculation. > > The interesting thing about this cable is that it has a messenger wire molded to the outside of the jacket. It is about # 10 gauge steel. It is not wrapped around the coax, just to one side, about 0.2 inches away. When I say molded, I mean that messenger wire and coax have the same black insulator jacket with a rib of the same material between them. > > I am looking for a source of connectors for this cable, so any help identifying it would be appreciated. > > Thanks for your help in advance, > Rick, N5RB >
Re: [Repeater-Builder] Re: Identify a coax and possible connector vendor
There is a whole write up on the net somewhere on how to use the 75 ohm hardline connectors and covert them to a n conector or pl-259 with pics . If you need any let me know as i am a line tech for a cable company . Unfotunetly it will be hard for me to core the cable for you to install the connectors unless you are close by. If you get to that point , i would suggest going to the local office of your cable company ( not a payment center but one that the line techs and construction department works out of) and ask them if they can core them for you. The connetors installs differently than say a PL-259 would and are either a 2 piece or a 3 piece. The coring tool actually cores out the dialetric and leaves the center conductor exposed with the shield. i do not have any here at the house to take pictures of it , nor be at work for the next month ( due to a back surgery). But feel free to contact me if you have any further questions. Keith N3QAM - Original Message - From: pontotochs To: Repeater-Builder@yahoogroups.com Sent: Friday, May 08, 2009 10:35 AM Subject: [Repeater-Builder] Re: Identify a coax and possible connector vendor Thanks to N3QAM and Ben. You guys nailed it with the P3 500 from China. I also appreciate Ben's tip on how to use a PL259. Regards, Rick, N5RB --- In Repeater-Builder@yahoogroups.com, "N3QAM" wrote: > > like 500 p3 or variant > > - Original Message - > From: N3QAM > To: Repeater-Builder@yahoogroups.com > Sent: Thursday, May 07, 2009 8:18 PM > Subject: Re: [Repeater-Builder] Identify a coax and possible connector vendor > > > > > > > sounds like some 75 ohm cable self support > - Original Message - > From: pontotochs > To: Repeater-Builder@yahoogroups.com > Sent: Thursday, May 07, 2009 8:16 PM > Subject: [Repeater-Builder] Identify a coax and possible connector vendor > > > Hi, > One of the ham repeater owners in the area has acquired a coax that I can't identify. No markings on the jacket. It has a nominal jacket diameter of 0.58 inches (it looks to be the 'standard' black PE), it has a solid aluminum shield (0.51" OD), about 0.028" thick. The dielectric looks to be the PE foam. The center conductor is copper over aluminum with a 0.11" OD (about #10 gauge). It looks to be 50 ohm based on a rough calculation. > > The interesting thing about this cable is that it has a messenger wire molded to the outside of the jacket. It is about # 10 gauge steel. It is not wrapped around the coax, just to one side, about 0.2 inches away. When I say molded, I mean that messenger wire and coax have the same black insulator jacket with a rib of the same material between them. > > I am looking for a source of connectors for this cable, so any help identifying it would be appreciated. > > Thanks for your help in advance, > Rick, N5RB >
