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Mike Urich
[email protected]
Sat, 15 Jun 2002 17:41:39 -0500
From: "John Jensen" <[email protected]>
> Mike but do these VHF/UHF antenna's cover a 800 mhz sysytem the VHF/UHF
for
> ham bands cover 146 and 440 so tell me how that is gonna give good
coverage
> for 800 mhz. Just a good question in my mind.
Mike wrote
This is way too easy ... ever use a 40 meter dipole on 15 meters?
Harmonic's ... radio 101 made real simple ...
Q) What's the second harmonic of 420-450 mHz?
A) 840-900 mHz.
Q)What's the third harmonic?
A) 1.26-1.35 gHz.
Q) Do these look familiar? (tongue in cheek not sarcastic)
Granted you will get a little mismatch at the second harmonic but not enough
to be concerned about for a scanner. Besides most of what is monitored on
800-956 is going to be repeater outputs ... very little low power or simplex
work. If you need high gain on 800-900 then I'd go with the Antenna
Specialists repeater antennas. A little pricey for a 800 mHz mono band
antenna but worth it if you're looking for high gain and great quality.
Something I was hoping some would ask but hasn't ... feedline anyone? What
are you going to hook it up with?
Mike Urich, KA5CVH
www.ka5cvh.com
LaPorte TX EL-29
Amateur Radio *IS* a contact sport!