Receive drops about 6 s-units
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I'm having a problem with my K3 (with 2 receivers and a P3). While listening for a few minutes, signals drop about 6 s-units. Original strength returns when I push the PTT, but the drop returns after a minute or two. None of this impacts transmit. It seems like a bad relay. Has anyone else encountered this?
73, Dick, WO1I ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Receive drops about 6 s-units
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This behavior is frequently caused by oxidation on a normally-closed (relaxed) relay in the antenna chain. Amplifier relays, bandpass filter relays, antenna selector relays are all suspects. It also could be a poorly soldered contact in the antenna, or an oxidized PL-259 center pin. When you transmit, it burns through the oxidation, which lasts only for a while. A treatment with Deox-it or a relay burnishing tool on the offending contact is the cure. Dave Hachadorian, K6LL Yuma, AZ -----Original Message----- From: Dick Lindzen Sent: Tuesday, February 16, 2016 7:45 PM To: [hidden email] Subject: [Elecraft] Receive drops about 6 s-units I'm having a problem with my K3 (with 2 receivers and a P3). While listening for a few minutes, signals drop about 6 s-units. Original strength returns when I push the PTT, but the drop returns after a minute or two. None of this impacts transmit. It seems like a bad relay. Has anyone else encountered this? 73, Dick, WO1I ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by rlindzen
I've decided to replace the SO-239 bulkhead connectors for ANT1 and ANT2
with N-Connectors, but I don't want to de-solder the pigtails from the stock UHF connectors. So I need to source new pigtails... Does anyone know what the specs are for the pigtails? What is that little male pin called that plugs into the PCB, and what type/gauge wire is used? (I know, I know... I don't NEED N-Connectors at HF-6M, but I want to standardize on N-connectors and BNC throughout my shack.) ______________________ Clay Autery, KG5LKV (318) 518-1389 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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Morse Express sells kits with an SO-239 sized mounting plate, hardware and
a female BNC connector to do just what you're proposing. It's a trivial matter to unsolder the short jumper wire with the pin from the SO-239 and move it to the BNC. All the antenna connectors on my K3 and wattmeter ... even my Bird ... are BNC's. 73 K0PP On Feb 16, 2016 20:00, "Clay Autery" <[hidden email]> wrote: > I've decided to replace the SO-239 bulkhead connectors for ANT1 and ANT2 > with N-Connectors, but I don't want to de-solder the pigtails from the > stock UHF connectors. > > So I need to source new pigtails... > > Does anyone know what the specs are for the pigtails? What is that > little male pin called that plugs into the PCB, and what type/gauge wire > is used? > > (I know, I know... I don't NEED N-Connectors at HF-6M, but I want to > standardize on N-connectors and BNC throughout my shack.) > > ______________________ > Clay Autery, KG5LKV > (318) 518-1389 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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1) I'm converting from SO-239 to N-Connectors on the K3s's ANT1, ANT2
connectors.... 2) I'm standardizing on one type of cable for "in the shack" stuff so that I don't have to buy a bunch of different dies for my crimp frame... until the tower feedline goes up. 3) I'm only using BNC where it already exists and for connection to some of my test equipment, etc. The bulkhead plate is a standard 1" x 1" square with holes on 0.718" spacing... standard , if there is one. I KNOW it is a trivial task to desolder the pigtail... I want to keep the stock parts stock and in the parts container with the rest of the spare hardware. I want NEW pigtails to use, so I can return it to stock trim if the need arises. So... I need to source the pigtail plugs, etc. to build new leads. ______________________ Clay Autery, KG5LKV (318) 518-1389 On 2/16/2016 9:12 PM, Ken G Kopp wrote: > > Morse Express sells kits with an SO-239 sized mounting plate, hardware > and a female BNC connector to do just what you're proposing. It's a > trivial matter to unsolder the short jumper wire with the pin from the > SO-239 and move it to the BNC. > > All the antenna connectors on my K3 and > wattmeter ... even my Bird ... are BNC's. > > 73 > > K0PP > > On Feb 16, 2016 20:00, "Clay Autery" <[hidden email] > <mailto:[hidden email]>> wrote: > > I've decided to replace the SO-239 bulkhead connectors for ANT1 > and ANT2 > with N-Connectors, but I don't want to de-solder the pigtails from the > stock UHF connectors. > > So I need to source new pigtails... > > Does anyone know what the specs are for the pigtails? What is that > little male pin called that plugs into the PCB, and what > type/gauge wire > is used? > > (I know, I know... I don't NEED N-Connectors at HF-6M, but I want to > standardize on N-connectors and BNC throughout my shack.) > > ______________________ > Clay Autery, KG5LKV > (318) 518-1389 <tel:%28318%29%20518-1389> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > <mailto:[hidden email]> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] <mailto:[hidden email]> > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by rlindzen
Every time that happens to me I go out and wiggle the window line on my G5RV to find the latest break from flexing in the wind. It's the copper weld wire that cracks and eventually separates enough to fail completely. Will be replaced soon.
73, Brian, K0DTJ > On Feb 16, 2016, at 18:45, Dick Lindzen <[hidden email]> wrote: > > I'm having a problem with my K3 (with 2 receivers and a P3). While listening for a few minutes, signals drop about 6 s-units. <snip> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Dave Hachadorian-2
Many thanks. Yup, it was the amplifier relay. I'll try Deox-it and hope for the best. The relay on the Ameritron AL-800 is not all that accessible, but I think the contacts can be reached.
Dick, WO1I -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Dave Hachadorian Sent: Tuesday, February 16, 2016 9:54 PM To: Reflector Elecraft Subject: Re: [Elecraft] Receive drops about 6 s-units This behavior is frequently caused by oxidation on a normally-closed (relaxed) relay in the antenna chain. Amplifier relays, bandpass filter relays, antenna selector relays are all suspects. It also could be a poorly soldered contact in the antenna, or an oxidized PL-259 center pin. When you transmit, it burns through the oxidation, which lasts only for a while. A treatment with Deox-it or a relay burnishing tool on the offending contact is the cure. Dave Hachadorian, K6LL Yuma, AZ -----Original Message----- From: Dick Lindzen Sent: Tuesday, February 16, 2016 7:45 PM To: [hidden email] Subject: [Elecraft] Receive drops about 6 s-units I'm having a problem with my K3 (with 2 receivers and a P3). While listening for a few minutes, signals drop about 6 s-units. Original strength returns when I push the PTT, but the drop returns after a minute or two. None of this impacts transmit. It seems like a bad relay. Has anyone else encountered this? 73, Dick, WO1I ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Clay Autery
On Tue,2/16/2016 6:59 PM, Clay Autery wrote:
> I've decided to replace the SO-239 bulkhead connectors for ANT1 and ANT2 > with N-Connectors, but I don't want to de-solder the pigtails from the > stock UHF connectors. Why? UHF connectors are generally superior at HF and low VHF. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Exactly Jim
N and BNC connectors are also more difficult to assemble. Makes no sense to me. On 2/17/2016 12:41 AM, Jim Brown wrote: > On Tue,2/16/2016 6:59 PM, Clay Autery wrote: >> I've decided to replace the SO-239 bulkhead connectors for ANT1 and ANT2 >> with N-Connectors, but I don't want to de-solder the pigtails from the >> stock UHF connectors. > > Why? UHF connectors are generally superior at HF and low VHF. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > > > -- > 73, > > Gary K9GS > > Greater Milwaukee DX Association: http://www.gmdxa.org > Society of Midwest Contesters: http://www.w9smc.com > CW Ops #1032 http://www.cwops.org > > ************************************************ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Clay Autery
My station has a lot of N connectors on HF and I find them easy to install
on RG8 size coax. I recently installed BNC connectors on RG8X for my RX system, I was previously using UHF to BNC adaptors. It took me a little while to figure them out, but they are really not difficult either. I only purchase Amphenol and Andrew connectors. John KK9A Gary K9GS garyk9gs at wi.rr.com Wed Feb 17 07:24:47 EST 2016 N and BNC connectors are also more difficult to assemble. Makes no sense to me. On 2/17/2016 12:41 AM, Jim Brown wrote: > On Tue,2/16/2016 6:59 PM, Clay Autery wrote: >> I've decided to replace the SO-239 bulkhead connectors for ANT1 and ANT2 >> with N-Connectors, but I don't want to de-solder the pigtails from the >> stock UHF connectors. > > Why? UHF connectors are generally superior at HF and low VHF. > > 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Gary K9GS
Gary, I find N-Type connectors just as easy to assemble as UHF connectors.
73, Bob Nobis - N7RJN [hidden email] > On Feb 17, 2016, at 05:24, Gary K9GS <[hidden email]> wrote: > > Exactly Jim > > N and BNC connectors are also more difficult to assemble. Makes no sense to me. > > On 2/17/2016 12:41 AM, Jim Brown wrote: >> On Tue,2/16/2016 6:59 PM, Clay Autery wrote: >>> I've decided to replace the SO-239 bulkhead connectors for ANT1 and ANT2 >>> with N-Connectors, but I don't want to de-solder the pigtails from the >>> stock UHF connectors. >> >> Why? UHF connectors are generally superior at HF and low VHF. >> >> 73, Jim K9YC >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> >> >> -- >> 73, >> >> Gary K9GS >> >> Greater Milwaukee DX Association: http://www.gmdxa.org >> Society of Midwest Contesters: http://www.w9smc.com >> CW Ops #1032 http://www.cwops.org >> >> ************************************************ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Gary K9GS
Please cite your authority for the "superiority" of "UHF Connectors" to
quality N-Connectors. I've been making all my own cables for 25+ years. N-Connectors and BNC connectors are no harder and "UHF" connectors are not any easier. If you've terminated enough cables with most any series connector, it gets easier. Has something to do with the right tools and experience. Bottom Line: I did not ask anyone to offer an opinion on UHF vs N-Connectors. I asked if anyone could tell me the name of the PCB pins used on the pigtails and a wire/cable spec for the lead. It only needs to make sense to me. Thanks! And have a super day! ______________________ Clay Autery, KG5LKV (318) 518-1389 On 2/17/2016 6:24 AM, Gary K9GS wrote: > Exactly Jim > > N and BNC connectors are also more difficult to assemble. Makes no > sense to me. > > On 2/17/2016 12:41 AM, Jim Brown wrote: >> On Tue,2/16/2016 6:59 PM, Clay Autery wrote: >>> I've decided to replace the SO-239 bulkhead connectors for ANT1 and >>> ANT2 >>> with N-Connectors, but I don't want to de-solder the pigtails from the >>> stock UHF connectors. >> >> Why? UHF connectors are generally superior at HF and low VHF. >> >> 73, Jim K9YC >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> >> >> -- >> 73, >> >> Gary K9GS >> >> Greater Milwaukee DX Association: http://www.gmdxa.org >> Society of Midwest Contesters: http://www.w9smc.com >> CW Ops #1032 http://www.cwops.org >> >> ************************************************ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by john@kk9a.com
Thanks John! Yes... a quality Amphenol or other name maker, the right
tools, and experience make them quite easy to use in terminating coax. I have also had good experience with the TImes Microwave TC series AND EZ series. The EZ series makes it "literally" a snap to do with the right strip tool and crimp dies for your frame. But the original question remains: What is the nomenclature for the pins on the leads? Heyco makes a pin that looks similar, but it is 0.187" dia... too big I'm sure. I'll probably have to buy the UHF kits from Elecraft and cannibalize them. ______________________ Clay Autery, KG5LKV (318) 518-1389 On 2/17/2016 7:53 AM, [hidden email] wrote: > My station has a lot of N connectors on HF and I find them easy to install > on RG8 size coax. I recently installed BNC connectors on RG8X for my RX > system, I was previously using UHF to BNC adaptors. It took me a little > while to figure them out, but they are really not difficult either. I only > purchase Amphenol and Andrew connectors. > > John KK9A > > Gary K9GS garyk9gs at wi.rr.com > Wed Feb 17 07:24:47 EST 2016 > > N and BNC connectors are also more difficult to assemble. Makes no > sense to me. > > On 2/17/2016 12:41 AM, Jim Brown wrote: >> On Tue,2/16/2016 6:59 PM, Clay Autery wrote: >>> I've decided to replace the SO-239 bulkhead connectors for ANT1 and ANT2 >>> with N-Connectors, but I don't want to de-solder the pigtails from the >>> stock UHF connectors. >> Why? UHF connectors are generally superior at HF and low VHF. >> >> 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by rlindzen
Hi Dick,
Don't be too quick to blame the amplifier relay. It could be your SteppIR yagi. This is a common SteppIR problem. QSY a bit so that the tuning light on the SteppIR controller turns on and off. Then tune back and forth over that frequency and listen for a drop in signal strength. If it occurs then it is the SteppIR EHU and not your amplifier relay. 73, Mike K2MK
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Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Clay Autery
On Wed,2/17/2016 6:21 AM, Clay Autery wrote:
> Please cite your authority for the "superiority" of "UHF Connectors" to quality N-Connectors. N-connectors have a well known problem with migration of the center conductor. Many, including me, consider a soldered connector superior to crimps. I note that you use crimps. Many consider a UHF connector more robust. Constant impedance simply doesn't matter below high VHF. As to weatherproofing, I would never consider ANY connector waterproof, and carefully seal all outdoor connectors. I do use some N-connectors in my station, mostly to terminate some runs of 7/8-in and 1/2-in hard line, most of which is used for long runs to HF antennas. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Clay Autery
http://www.wa1mba.org/UHFconn.htm0
bob k3djc On Wed, 17 Feb 2016 09:31:28 -0800 Jim Brown <[hidden email]> writes: > On Wed,2/17/2016 6:21 AM, Clay Autery wrote: > > Please cite your authority for the "superiority" of "UHF > Connectors" to quality N-Connectors. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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Remove the trailing zero (.htm only) and the link will work.
Rick nhc Sent from my iPad > On Feb 17, 2016, at 9:42 AM, <[hidden email]> <[hidden email]> wrote: > > http://www.wa1mba.org/UHFconn.htm0 > > bob k3djc > > On Wed, 17 Feb 2016 09:31:28 -0800 Jim Brown <[hidden email]> > writes: >> On Wed,2/17/2016 6:21 AM, Clay Autery wrote: >>> Please cite your authority for the "superiority" of "UHF >> Connectors" to quality N-Connectors. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Jim Brown-10
Actually, for this application, I will be using Times Microwave
TC-series N-Connectors which are crimp/ solder for the shield/contact. The pin is soldered to the center conductor with a 0.050" standoff from the PE insulation. The shield is crimped to the connector shell with a 0.255" hex crimp die against the shell body leaving a slight uncrimped ring at the cable end for strain relief. Finally, the supplied or supplemental adhesive/sealant lined shrink tube is installed over the appropriate area of the crimp to offer weather resistance. The same method is used to terminate the TC-series BNC connectors. It is quite and easy process with the proper strip, de-bur, and crimp frame/dies, and provides a very consistent termination. I have used the EZ-series connectors in the past especially for static wireless point-to-point antenna feed lines using LMR-400 and larger cable. The de-burred center conductor of a properly stripped end "clicks" into the connector and crimped as above. I have feed lines on PTP installs that have been in place for 10 years using these connectors with ZERO problems. Additionally, there is a third method that some cable makers use where they use a proper die to crimp the center pin on FIRST, and then solder the pin as a secondary connection. This is generally over-kill, but I have used this method in the past for terminations that MIGHT see some rougher handling. It all depends on the specific connector design, manufacturer, cable type, installation considerations, et al. Use the right connector and tools with the right cable stock, combined with patience and skill. I DO use crimp only connectors for 75-Ohm audio/broadcast cables (Canare exclusively). Almost exclusively indoors on apps where cable will not be disturbed a lot. Proper tools/dies and cable center conductor prep as to straightness, deburring, cleaning insulator of stray shield bits, center conductor length correct for crimp well and insulator contact, et al. insure proper signal integrity and low/no leakage. ALL connectors are vulnerable to mis-handling, weathering effects, etc. And you are correct, ALL exterior connectors should be adequately protected. Personally, I use self-fusing tape or liquid products over the entire connection, and then a quality UV resistant electrical tape over that. The electrical tape is then secured at the open end with a UV resistant cable tie to guard against tape release. The principle being to restore the connection area to as close to an unbroken cable outer jacket as possible. Further, I generally use a cable stock like the Times -DB series which is impregnated with a moisture excluding substance anywhere that is tough to work on, long runs, etc... in addition to direct burial of sub-surface conduit. Bottom Line: It may be over-engineering, but I've been making cables for 25+ years; they work well and setting aside catastrophic situations; they've never failed me. But the original question remains: "What are the pins on the ANT1 and ANT2 lead ends that plug into the PCBs called?" Have a great day! ______________________ Clay Autery, KG5LKV (318) 518-1389 On 2/17/2016 11:31 AM, Jim Brown wrote: > On Wed,2/17/2016 6:21 AM, Clay Autery wrote: >> Please cite your authority for the "superiority" of "UHF Connectors" >> to quality N-Connectors. > > N-connectors have a well known problem with migration of the center > conductor. > > Many, including me, consider a soldered connector superior to crimps. > I note that you use crimps. > > Many consider a UHF connector more robust. > > Constant impedance simply doesn't matter below high VHF. > > As to weatherproofing, I would never consider ANY connector > waterproof, and carefully seal all outdoor connectors. > > I do use some N-connectors in my station, mostly to terminate some > runs of 7/8-in and 1/2-in hard line, most of which is used for long > runs to HF antennas. > > 73, Jim K9YC > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors
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In reply to this post by Jim Brown-10
You might have luck communicating with
[hidden email]. 73, Ken K3IU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ On 2/17/2016 1:05 PM, Clay Autery wrote: > But the original question remains: "What are the pins on the ANT1 and > ANT2 lead ends that plug into the PCBs called?" > > Have a great day! > > _ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Are you referring to a TMP connector, Taiko Denki (plug) TMP-K01X-A1
(Taiko-Denki) ? http://www.ebay.com/itm/10-pcs-TMP-connector-Taiko-Denki-plug-TMP-K01X-A1-Ta iko-Denki-/131727979173?hash=item1eab9972a5:g:qPIAAOSwRLZUHJQi ken - ke4rg -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Ken Wagner K3IU Sent: Wednesday, February 17, 2016 1:13 PM To: Clay Autery <[hidden email]>; [hidden email] Subject: Re: [Elecraft] Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors You might have luck communicating with [hidden email]. 73, Ken K3IU ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ On 2/17/2016 1:05 PM, Clay Autery wrote: > But the original question remains: "What are the pins on the ANT1 and > ANT2 lead ends that plug into the PCBs called?" > > Have a great day! > > _ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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