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"Gary Smith" wrote in
: Yes, i am in rural Southwest Victoria. I am currently running a discone on 2 Metres which is about 5 Metres above ground. The closest 2 Metre repeater is approx 100Km line of site and has big problems with RX, as such i cannot access it with my current antenna. Gary, 100km is a long path to a repeater, so you have to make sure you are doing some things right. I don't want to be negative about your discone, but they, being very broadband, accentuate IMD problems (so called pager interference) with receivers. If you are in the sticks, that won't be as noticeable as in the city, and it will affect ham gear more than commercial LMR which tend to have better front end selectivity. The other thing about the discone, is it is relatively low gain on tx. I note that your main problem with the 2m repeater is it hearing you, so you should be trying initially to boost your transmit signal. Perhaps you should look around at one of the commerical high gain 2m or dual band antennas that will give you 3 - 6dB lift depending on the model (in other words to double to quadruple your effective radiated power). Review your feedline situation to see you are not chucking signal away there as well. Another alternative is to build or buy a small yagi, 4 to 6 elements, vertically polarised and fixed on the repeater, but of course it is a bit restrictive for other contacts. I have a 20 element yagi on UHF CB with a repeater to the Southeast and us locals use that repeater to communicate as we have for years, and its our local link, still, at this stage. So, we're not all surrounded by repeaters in our back yards in this corner of this state Repeaters aren't everything, I think there are 9 or so here for a relatively low ham population, I don't use them, and they aren't very busy except for drive time when they sound a bit like CB. and the terrain isn't all flat either, our town is built on the Glenelg river and fortunantly i live a little higher than the centre of town. We still have non amateur friends on UHF CB and like to keep in touch with them. I pitty those that use UHF CB repeaters in or near cities, usually it's a waste of time talking on them but there are SOME good operators there as well. "in the sticks" we use them for proper conversations instead of kids trying to overpower each other. Maybe thats why you are wondering why i still want UHF CB Have fun, try experimenting with some different antennas, reserve your discone for a radiating dummy load. Re the Commodore, when I was younger, the deal was that the car owner purchased a slab, invited some competent mates around and after a certain anaesthetic threshold was reached, the holesaw came out and the antenna was installed... just watch that the guy with the holesaw isn't as anaesthetised as a newt! Owen |
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