[HCDX]: Re: New Expanded AM Band Station
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[HCDX]: Re: New Expanded AM Band Station

On Fri, 17 Apr 1998 10:33:23 -0400 "Pres Waterman" <pres@xxxxxxxxxxxxx>
> The bigeest problem in tuning things
>>      up was restoring the 1330 pattern after the diplexing filters 
>>      installed.
>does anyone know exactly how this pattern tuning is accomplished and
>Pres Waterman N2PW
>c/o Patchogue Motors, Inc.
>Ford and Kia dealer

Well, the transmitter output goes to a phasing unit where the signal is
split, and sent in varying phase and amplitude relationships to the
towers.  The amplitude, at least, is determined by reading the RF ammeter
at the base of each tower.  The pattern is verified by driving around to
the authorized monitoring points and measuring the signal amplitude with
a field-intensity meter (a glorified radio with an accurate S-meter).

Glen Kippel

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