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#1
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The problem started when I cut the cable in half on accident. It's a
very small coaxial cable. Question is, can you just solder it back and expect it to work OK? Joe |
#2
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On Jul 9, 10:48 am, Joe wrote:
The problem started when I cut the cable in half on accident. It's a very small coaxial cable. Question is, can you just solder it back and expect it to work OK? Joe It will work so long as you maintain seperation of the shielding and wire, BUT you might encounter some signal loss even with a good splice or splicing joint, such as those sold at West Marine. Best thing is to just try it. RB 35s5 NY |
#3
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![]() "Joe" wrote in message ps.com... The problem started when I cut the cable in half on accident. It's a very small coaxial cable. Question is, can you just solder it back and expect it to work OK? Joe Is the cable smaller than RG-174? You can repair that small stuff, just keep it all circularly symmetric and the ratios of the diameters the same. A more reliable repair would be to place male and female connectors on the broken ends and rejoin them. When I fix coax that small I use my Olympus laboratory grade stereo microscope, Carl Zeiss reducer, Metcal or Pace full soldering/repair system plus the finest solders and fluxes available. My soldering system costs more than RB's home theater amplifier, the wire bonding machine and die placer cost more than any 2 of his cars. Of course his telescope can't compare to my national standard descending stage geologic microscope. I can sell it as broken and buy two of his mass produced, consumer level telescopes. The center conducotrs are very small and that cable is very, very lossy. Your best bet would be to replace the cable with a larger diameter coax of the same intrinsic impedance that has 100% shield. Is there a connector at the antenna? If so, this is easy to do. If you need help, I can suggest a cable for you. This company may be helpful too: http://www.pasternack.com/category--...WIZARD-10.html I find it amusing that RB needs ultra precision audio cables and performance for acoustic signals at one volt levels and 30 Hz vibrations and yet it is ok just to solder things together for microwave signals at levels of .000001 volts and 1,500,000,000 Hz vibrations. Amazing. But then you just can't read about such things in a stereo review magazine or find reviews on the internet. |
#4
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Bob Crantz wrote:
"Joe" wrote in message ps.com... The problem started when I cut the cable in half on accident. It's a very small coaxial cable. Question is, can you just solder it back and expect it to work OK? Joe Is the cable smaller than RG-174? You can repair that small stuff, just keep it all circularly symmetric and the ratios of the diameters the same. A more reliable repair would be to place male and female connectors on the broken ends and rejoin them. That's what I suggested too! I find it amusing that RB needs ultra precision audio cables and performance for acoustic signals at one volt levels and 30 Hz vibrations and yet it is ok just to solder things together for microwave signals at levels of .000001 volts and 1,500,000,000 Hz vibrations. Amazing. But then you just can't read about such things in a stereo review magazine or find reviews on the internet. Why do find it surprising? It's yet another example of The Boobster knowing next to nothing about which he writes, but doing so profligately anyway. Cheers Marty (Who has a Metcal sytem also, but uses Weller for run of the mill work.) |
#5
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On Jul 9, 11:24 am, "Bob Crantz" wrote:
"Joe" wrote in message ps.com... The problem started when I cut the cable in half on accident. It's a very small coaxial cable. Question is, can you just solder it back and expect it to work OK? Joe Is the cable smaller than RG-174? It looks like RG-174.. Can you get splice kits that small? It is hard wired to the hummer top magnetic type antenna and the port snap. (minus my cut) Joe You can repair that small stuff, just keep it all circularly symmetric and the ratios of the diameters the same. A more reliable repair would be to place male and female connectors on the broken ends and rejoin them. When I fix coax that small I use my Olympus laboratory grade stereo microscope, Carl Zeiss reducer, Metcal or Pace full soldering/repair system plus the finest solders and fluxes available. My soldering system costs more than RB's home theater amplifier, the wire bonding machine and die placer cost more than any 2 of his cars. Of course his telescope can't compare to my national standard descending stage geologic microscope. I can sell it as broken and buy two of his mass produced, consumer level telescopes. The center conducotrs are very small and that cable is very, very lossy. Your best bet would be to replace the cable with a larger diameter coax of the same intrinsic impedance that has 100% shield. Is there a connector at the antenna? If so, this is easy to do. If you need help, I can suggest a cable for you. This company may be helpful too: http://www.pasternack.com/category--...WIZARD-10.html I find it amusing that RB needs ultra precision audio cables and performance for acoustic signals at one volt levels and 30 Hz vibrations and yet it is ok just to solder things together for microwave signals at levels of .000001 volts and 1,500,000,000 Hz vibrations. Amazing. But then you just can't read about such things in a stereo review magazine or find reviews on the internet. |
#6
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![]() Joe, What kind of connector is at the radio end? |
#7
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On Jul 9, 12:42 pm, "Bob Crantz" wrote:
Joe, What kind of connector is at the radio end? A small gold snap. Joe |
#8
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Joe,
I went to the Trimble website and they don't make the Scout anymore. They do make some good equipment. If the antenna is a low cost one, I'd recommend buying one from eBay. If it is a precision antenna (costing several hundred dollars) I'd be willing to repair the thing for you for free. I need to see pictures of the case, a model number and a picture of the connector to see if it is repairable. http://www.trimble.com/gpsbc_bullet3.shtml Is your antenna active? Does it have a built in ampifier? http://www.thegpsstore.com/Antennas-Mounts-C41.aspx http://www.antenex.com/index051206.htm http://www.linxtechnologies.com/Products/Antennas/GPS/ |
#9
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On Mon, 9 Jul 2007 10:24:36 -0600, "Bob Crantz"
wrote this crap: Question is, can you just solder it back and expect it to work OK? When I fix coax that small I use my Olympus laboratory grade stereo microscope, Carl Zeiss reducer, Metcal or Pace full soldering/repair system plus the finest solders and fluxes available. My soldering system costs more than RB's home theater amplifier, the wire bonding machine and die placer cost more than any 2 of his cars. Of course his telescope can't compare to my national standard descending stage geologic microscope. I can sell it as broken and buy two of his mass produced, consumer level telescopes. I just use superglue to repair it. All seriousness aside. It's much easier to throw it out, and buy a new hand held. You can get one for under a hundred. I'm Horvath and I approve of this post. |
#10
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Joe wrote:
The problem started when I cut the cable in half on accident. It's a very small coaxial cable. Question is, can you just solder it back and expect it to work OK? Joe No. You should get a male and female UHF connector suitable for the coax you cut, (find a local HAM and he'll be able to tell exactly which connector will work best), install the new connector on the cut ends and join the cable that way. You will still get a small loss but it won't be too bad. DO NOT follow the Boobsters advice and just splice the thing together like you were fixing a busted lamp cord. Cheers Marty ------------ And now a word from our sponsor --------------------- For a secure high performance FTP using SSL/TLS encryption upgrade to SurgeFTP ---- See http://netwinsite.com/sponsor/sponsor_surgeftp.htm ---- |
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