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Gene wrote: Getting ready to purchase a ICOM 8500, and as I live in a community where a long wire would be out of the question, I have been told that a discone will work quite well for my monitoring activities, and will be rather hard for the grumpy neighbors to see, as compared to a beam, etc. etc.... . Any comments on this? How high should I install it. Probably cant go over 15 or 20 feet at the most. I intend to use some type of telescoping mast, so when one of our Florida hurricanes comes, I can "bring er down"! Since the antenna will be coupled to the mast, will I still need to ground it? (I know thats probably a really stupid question, but it seems as if the metal mast would take a lightning strike (God forbid!) to the ground, rather than into the house..(??) A neighbor of mine has a little discone up around 15 ft., and uses it to transmit on the 6 meter (or is it 20 meter) bank. Works quite well, he says. Thanks in advance for any info You can use a discone for 30 Mhz and up for sure. the performance below that falls off very quick. I use my discone with an ICOM R7000. As for grounding yes you have to ground the anttena. It is for safety as the lightening may want to flow down your coax lead in no matter what is struck by the lightening. Lightening goes everywhere when it hits and into the house via the coax is a good possibliity. My discone sits on top of 2-10 foot mast sections. The coax is fed to a gound rod via an anti satic device, then on to the radio. the mast is bolted to my dack so is easy to take down You could use the 20 mast as an antenna. run coax to the mast and secure it to the bottom. You now have a 20 foot vertical antenna that will be fine on SW. There is more info about grounding and antennas at the AMANDX site below -- 73 and Best of DX Shawn Axelrod VE4DX1SMA Visit the AMANDX DX site with info for the new or experienced listener: http://www.angelfire.com/mb/amandx/index.html REMEMBER ON A CLEAR DAY YOU CAN HEAR FOREVER |
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