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KB2VXA > TECH 30.01.04 12:04l 37 Lines 1478 Bytes #999 (0) @ WW
BID : 19252_WT3V
Read: DB0FHN GUEST
Subj: Re: G8MNY > Flat Plate Aerial
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<ON0AR<7M3TJZ<WB0TAX<N3HYM<N1UAN<W1GMF<
K1UGM<W1ON<W1ON-5<K1UOL<K1UOL<WA2PNU<KC2COJ<WT3V
Sent: 040130/0659 19252@WT3V.#CNJ.NJ.USA.NOAM $:19252_WT3V
From: KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
To : TECH@WW
Hi John and all,
Thanks for another great article on antennas! That four bay reflector
array for 23cM reminds me of the common "bowtie" reflector used for
commercial UHV TV reception.
Since in the US the UHF TV band is just above the 23cM Amateur band and
the bowtie elements are very broad band, one works rather well for ATV.
OOPS! Pardon the typo, read 70cM Amateur band. Although I have never
transmitted ATV due to the lack of activity, I used to monitor the
repeater on the WTC before we lost it. I used a four bay bowtie reflector
and RG-6U coax run to a cable ready TV tuned to channel 58 and got very
good reception. BTW, I QSOed with them on the 2M talkaround frequency
once in a while and watched them on the TV as they returned transmission.
That particular antenna design gives a good cardioid pattern so is
particularly useful for nulling out co-channel interference (there was or
is a NJ repeater on the same pair) while requiring no particular aiming
accuracy. That rather makes it ideal for simplex operation with a group,
that is unless you have one off the back and have to jog the rotor.
73 de Warren, KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
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