THE CGC COMMUNICATOR

                            CGC #377

                     Tuesday,  March 7, 2000

                 Robert F. Gonsett, W6VR, Editor

     Copyright 2000, Communications General Corporation (CGC)



  Do you live or work within several miles of the KSDS(FM)
transmitter plant at Mesa College in San Diego, or know someone
who does?  If so, we'd appreciate your help.

  KSDS is licensed for, and is now operating at, 830 watts ERP
using horizontal polarization.  We call this the "Hpol" mode.
On Thursday KSDS will begin experimental operation at 3,000 watts
ERP using a vertically polarized antenna that is higher up on
their tower.  We call this the "Vpol" mode.

  The basic question is this:  Which mode of transmission (Hpol
or Vpol, if either) causes the greater amount of interference to
the normal OVER-THE-AIR reception of XETV, Fox Channel 6.  A
viewer would probably have to be located within 5-7 miles of
the KSDS tower to detect the interference which could impact
the picture, interfere with the sound or even affect the color
saturation.  But reports from somewhat further distances are
welcome as well.

  To help, let us know how well Channel 6 is received over-the-
air on Wednesday (KSDS = Hpol mode) and how well it is received
on Thursday after 6 am (KSDS = Vpol mode).  Reports of "no
interference either way" or "equal interference either way" are
welcome too.  The time NOT to watch is on Thursday between
12:01 am and 6 am when KSDS is switching between modes to
exercise their equipment.

  To respond, please send e-mail to <rgonsett@connectnet.com>
and be sure to include the viewing address.  Thanks for helping.

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