just an idea... for home-satellite-dish-cabling there are so called "F-Connectors" which maintain reliable contact over decades even in outdoor condition. They can handle frequencies up to 3 GHz. "microwelding" is done by the fact that they also carry DC power for the converter which is located on the dish (about 200-600mA). In Automotive Electronics where you have similar environment, it's quite common to apply momentary DC current to a mechanical "cold switch action" by the use of a PTC resistor to achieve microwelding. Combining these, with some circuitry necessary for coupling and decoupling your "payload" signal is, maybe a way to solve your problem...
regards [EMAIL PROTECTED] -----Urspr�ngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Bert Douglas Gesendet: Donnerstag, 20. J�nner 2005 03:22 An: [email protected] Betreff: Re: gEDA-user: Contact reliability Hi Cl, These are links to components (or similar) which I suggested earlier. Sometimes a picture is worth 1000 words. http://rocky.digikey.com/WebLib/Cinch/Web%20Photos/4-140.jpg http://multimedia.mmm.com/mws/mediawebserver.dyn?ddddddNLXpsdyHedrHedddIG5P&; g8gAw- Note the ring terminals are long-barrel, brazed-seam, non-insulated. By long barrel you have longer crimp region, stronger, lower resistance. Long means about 5 to 7 times the diameter of the wire. There is a seam/joint in the barrel. You want welded/brazed seam. Avoid ones with open crack in barrel. The non-insulated ring terminals are to be preferred, because you can perform a better, more agressive type crimp. This is kind of like the difference between biting with teeth, and biting with no teeth.
