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On Sun, 11 Mar 2007 15:31:19 -0700, Roy Lewallen wrote:
Most handheld receivers are designed to be used with a very short duckie antenna. The front end is totally overwhelmed if connected to an antenna of reasonable size. Besides having a whole lot of extra gain to accommodate the short antenna, compromises have to be made in the front end filtering because of the unit's small physical size. Keeping the power consumption low further limits the dynamic range of the stages. I have an Icom R1 and it's full of crossmod birdies even with its own antenna. When connected to a real antenna, it's totally unusable, the front end being overloaded and blocked by just about anything. I have to use a 20 or more dB pad if I ever connect it to a decent antenna. I'll bet a substantial attenuation pad would do wonders for yours. Roy Lewallen, W7EL Hm. I _thought_ it looked kinda funny having such a puny receiver for such a long antenna... Thanks for the tip on the attenuator. I'll look into that. =) -- Nos |
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