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#11
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Confused over coax and windom - newbie
On Sun, 27 May 2007 22:40:57 -0700, John Smith I
wrote: OK. Let's apply logic here ... 1) If you have used a VOM and there is continuity between the center conductor of one end of the coax, with the center conductor of the opposite end of the coax, the center conductor is ok. 2) If you have continuity between the outer conductor of one end of the coax (shield) with the outer conductor of the opposite end of the coax (shield), the outer shield of the coax is ok. snip Warmest regards, JS In view of your logic, let me tell you about my situation recently when I tested a piece of coax on which I installed on connector. There were already two connectors on the coax and I removed one that was crimped and had slipped. I put on my connector and tested it with my radio, no signal. Hmm, I needed to check the wire. 1) I tested the center conductor and the shield on the connector I just installed... Short. OOPS! I cut off the connector and replaced it. 2) Tested the center conductor and shield on the connector I just installed... Short. OOPS again. 3) after cutting off my connector again, I tested the other connector. between the coax and shield. Open. Great! I soldered on the connector for the third time. 4) tested the center lead and shield of my connector... SHORT! Hmmmm 5) I cut off my connector and tested again. Open ????? I tested the other connector again. Open. ahhhh. I tested the center conductor from end to end.... OPEN!!! I tested the center conductor to the shield on the end where I was installing my connector.... SHORT!!!! Time for a new piece of coax.... 73 for now Buck N4PGW -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
#12
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Confused over coax and windom - newbie
Buck wrote:
You were either working with one EXPENSIVE piece of coax (and attempting to save the pocket book)--else you demonstrate your super human perseverance! JS |
#13
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Confused over coax and windom - newbie
On May 28, 8:24 am, Buck wrote:
In view of your logic, let me tell you about my situation recently when I tested a piece of coax on which I installed on connector. There were already two connectors on the coax and I removed one that was crimped and had slipped. I put on my connector and tested it with my radio, no signal. Hmm, I needed to check the wire. 1) I tested the center conductor and the shield on the connector I just installed... Short. OOPS! I cut off the connector and replaced it. 2) Tested the center conductor and shield on the connector I just installed... Short. OOPS again. 3) after cutting off my connector again, I tested the other connector. between the coax and shield. Open. Great! I soldered on the connector for the third time. 4) tested the center lead and shield of my connector... SHORT! Hmmmm 5) I cut off my connector and tested again. Open ????? I tested the other connector again. Open. ahhhh. I tested the center conductor from end to end.... OPEN!!! I tested the center conductor to the shield on the end where I was installing my connector.... SHORT!!!! Time for a new piece of coax.... Sounds like too much heat.. You may be melting the clear jacket and shorting the pin to shield. Be careful using too much heat when soldering the shield. Sounds like you have a manly soldering gun.. MK |
#14
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Confused over coax and windom - newbie
wrote:
Sounds like you have a manly soldering gun.. MK Or an underpowered one which produces too great an area under the temp vs. time curve. An old-fashioned iron with a high thermal mass tip is less likely to damage the coax. Chuck ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#15
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Confused over coax and windom - newbie
On Mon, 28 May 2007 07:55:53 -0700, John Smith I
wrote: Buck wrote: You were either working with one EXPENSIVE piece of coax (and attempting to save the pocket book)--else you demonstrate your super human perseverance! JS actually, I was thinking I was just that sloppy.... lol -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
#16
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Confused over coax and windom - newbie
On Mon, 28 May 2007 15:56:10 -0400, Chuck
wrote: wrote: Sounds like you have a manly soldering gun.. MK Or an underpowered one which produces too great an area under the temp vs. time curve. An old-fashioned iron with a high thermal mass tip is less likely to damage the coax. Chuck ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- Inside the coax near the other connector, the wire had broken and one of the broken ends shorted the coax, the other broken end touched nothing. I had to look long and hard. It was apparently just a defect. It also happened to be the only accessible piece of coax handy at the time. As stated above, I was just thinking I was shorting out the coax connector, but when I cut it loose and it wasn't shorted, i knew it had to be at the other end. However, the other end appeared to be non-shorted. It wasn't till I took time to test the length of center conductor that I discovered the open. -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
#17
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Confused over coax and windom - newbie
Buck wrote:
... Buck: I have fought things like you describe only to fail and go to bed angry .... then get up in the morning and see the problem immediately! :-) Regards, JS |
#18
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Confused over coax and windom - newbie
On Mon, 28 May 2007 20:19:40 -0700, John Smith I
wrote: Buck wrote: ... Buck: I have fought things like you describe only to fail and go to bed angry ... then get up in the morning and see the problem immediately! :-) Regards, JS I know the feeling -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
#19
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Confused over coax and windom - newbie
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#20
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Confused over coax and windom - newbie
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