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Long wire to SO-239 50 ohm?
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David wrote: On Thu, 25 Jan 2007 03:06:28 GMT, Telamon wrote: If you use a cable TV Balun you'll get a quick and dirty 4:1 transformer and a marked improvement. http://www.radioshack.com/product/in...2&cp=&sr=1&ori gkw=matching+transformer&kw=matching+transformer&p arentPage=search Those don't work well below 10 MHz. 15 MHz and higher they are OK. How do you know? I tested them. What is the low frequency limiting component? I didn't go as far as that. This unit is made of a ferrite core and a couple of very small value capacitors. I would guess the core was the problem. -- Telamon Ventura, California |
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