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Hey Sal -- thanks! I didn't know they made anything like
that. I had considered using a piece of 300 ohm TV Twinlead in a similar manner. For the short distance, and not worrying about the impedance bump and any losses, I think I'll make one up and give it a shot. The CTC-50M is not far different, and for what it does I consider it a little pricey. It will be a quick and easy project -- two UHF females and RTV compound to seal up the ends. What's a guy got to lose? If it works to any degree, then great! If it doesn't, then back to the drawing board. So far, the test piece of RG-58 that has been placed in the closed door has not deformed too badly, nor has it shorted. The temperatures here lately range from just below freezing at night to about 20 degrees on the balcony in direct sunlight (the balcony faces South). Your other suggestions have already been discounted. What I really want is something cheap and simple where I don't have to do too much moving about to change bands, Thanks again, de VE6BP, Irv "Sal" salmonella@food poisoning.org wrote in message ... "Irv Finkleman" wrote in message ... Another interesting thing is how I can feed the antenna through the door to the balcony. I can't drill holes, but I currently have a piece of RG-58 squeezed through the closeddoor. Every day I check to see if anything has happened to it such as migration of the center conductor to the point where it shorts to the sheild. You might benefit from something like this: http://www.cometantenna.com/pdfs/CTC..._and_instr.pdf Alternatively, leave the door open a crack while passing coax through the opening but seal the opening with a full-height strip of masking tape to keep out the wintery winds. I'm not desperate, but nearly so, and anxious to get on the air again. Have you considered single band whips? The names "Hustler" and "Hamstick" come to mind but there are others. They need a counterpoise to work but the following anecdotes will provide some insight, I hope: I assembled and successfully demonstrated (for Field Day this year) a quick-and-dirty portable HF rig. I used the following crap: a pair of steel chassis slides bolted together at the ends and laid on the ground at a right angle. Their weight and orientation will keep them where they are placed. They are magnetic; a very thin single-use aluminum pan with two 20m radials (about 15 feet) bolted firmly to opposite sides of the baking dish; It laid on a flat part of the chassis slides; an MFJ magmount base (from a 1724B I think, whatever one has the 3/8 threaded socket), with the whip removed. It was placed onto the pan in such a location as to stay magnetically "stuck." the magmount base is capacitively coupled to the pan with the radials; (Would direct wiring from the shield to the radials be better? Dunno.) A Hustler 20m element screwed into the above magmount base. This foregoing electrified junkpile worked multiple stations in the Midwest from San Diego on 20m for Field Day. I used it on 20 and 40 (different whips and different baking pan radials, of course) while on a trip earlier this month with considerable success. The radials might prefer to be stretched out but this, too, can be worked-around. I've used them with the ends drooping off the corners of a balcony and had no trouble getting a match with a $5 swap meet manual tuner. More radials would likely be better but unwinding and re-winding radials around the baking pan is already a pain with just two. Irv, does any of this resonate with you and your balcony? Aside: Maybe I can improve the described radial scheme, like something that involves retractable metal tape rules. Then I'd just need one pan and I can set my radial lengths at will. New thought: If I bolted the free ends of some retractable metal tape rules directly to the steel chassis slides i would eliminate the baking pan, altogether. It offers a certain bizarre appeal. "Sal" |
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