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Richard Clark wrote:
On Wed, 4 Feb 2009 22:15:09 +0000, KE5LDO wrote: I built this years ago as a quick antenna for receiving and transmitting. It is name after Havana Cuba's Arnie Coro, since He came up with it over 20 years ago. Did Fidel put Arnie against the wall when he published how to construct a TRANSMITTING antenna? He should have if for no other reason than the arbitrary instructions: 1. Take a 45 ft/15 meter 52 ohm Coax, or multiples up or down. What significance is 45 feet (or 15 meters)? Is this a magic number? 2. Dress it as center conductor and braid on both ends. Dress right, or dress left? 3. Solder a 50 OHM resisitor on one end, connecting the center and the braid. Wouldn't a 50 Ohm resistor present a SWR of 1.04:1? This isn't about efficiency, is it? 4. On the other end, solder a piece of coax. with braid to center conductor, center conductor to braid. On the other end, solder a PL-259, or whatever your rig accepts.. Then connect it to your receiver/transmitter. Shouldn't this be 4(a) and 4(b)? For 4(a) What happened to the resistor? For 4(b) Why the connector? Just run the existing line out to 4(a) 5. You now have a balanced, low noise antenna. I would suggest a 10 watt or hgher resistor for the amount of power you are going to use if transmitting. Why would you use a resistor for receiving? If it were for transmitting, I can see why Cuba is still under domination by the Castros. Something must have been lost in translation - or maybe the process of getting through the communist censors. Perhaps this was the CIA antenna design for the Bay of Pigs. 73's Richard Clark, KB7QHC You can look up Arnie's website on Google, go there, and read for yourself what Arnie's idea of an antenna is. The poster is pulling a fast one. 73, Tom Donaly, KA6RUH |
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