re: [amsat-bb] TH-F6 and UHF SSB

[John Mock <kd6pag@xxxxxxx>]

    > I don't think this is correct. A 1/4 wave 2 meter antenna (about 19")
    > works as a 3/4 wave antenna on 70cm. Although a 3/4 wave antenna has a
    > fairly good match to 50 ohms (unlike a 5/8 wave that requires a matching
    > network)it doesn't have a very good radiation pattern for land mobile
    > use. It may very well out perform a 'rubber duck' but it won't perform like
    > a 5/8 wave antenna.

You're right, and indeed, my van has a 2m 1/4 wave tuned for optimized
for good SWR in the 70cm on satellite sub-band it for that reason indeed.  
It's definitely a poor performer for repeaters, but it's just the right 
thing for the J-FM birds.  And unlike the rubber ducks that i mentioned
earlier, it doesn't do so badly in most urbanized areas (my own area
excepted due to an badly coordinated[?] ATV station).

				-- KD6PAG
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