=  NOW 30 WPM  =
FREQUENCY, WHICH COULD BE A COMMERCIAL REPEATER OR SOME OTHER SOURCE.
OTHER THINGS CAN ALSO ADD UP OR SUBTRACT DOWN TO YOUR REPEATERS INPUT
FREQUENCY.  THIS IS WHERE IT GETS DIFFICULT.  FOR EXAMPLE, NO MATTER HOW
GOOD THE FM STATION IS, AS CLOSE AS IT IS TO YOUR INPUT ANTENNA, THERE WILL
BE HARMONICS.  AND WHERE IS THIS NON LINEAR DEVICE THAT IS MIXING ADDING
AND SUBTRACTING FREQUENCIES WHEN MORE THAN ONE SIGNAL IS PRESENT?  IT COULD
BE ANYTHING, SUCH AS A LOOSE BOLT SOMEWHERE ON THE TOWER, AN ISSUE WITH
SOMEONES COAX, OR JUST ABOUT ANYTHING.  YOU CAN TRY MOVING THE REPEATERS
ANTENNA A FEW FEET.  THE SEARCH FOR THE INTERMOD SOURCE CAN BE EXTREMELY
FRUSTRATING.  ARRL HAS A TECHNICAL INFORMATION SERVICE TIS ARRL.  ORG THAT
CAN HELP WITH DEEPER PROBLEMS.  INSTALLING A VERTICAL IN A SMALL SPACE Q IM
CONTEMPLATING A DX COMMANDER ANTENNA.  I HAVE A SMALL YARD WITH ONLY ABOUT
18 20 FOR RADIALS.  THE GRASS IS NOT HEALTHY AND WILL NEVER GROW OVER THE
RADIALS.  CAN I COVER THEM WITH GRAVEL?  WHAT ABOUT PUTTING ARTIFICIAL TURF
OVER THEM?  WILL EITHER APPROACH INTERFERE WITH THEIR FUNCTION?  A COVERING
THEM WITH AN INCH OR TWO OF GRAVEL IS FINE.  THE ARTIFICIAL TURF WILL NOT
=  END OF 30 WPM TEXT  =  QST DE W1AW  <