[aprssig] Mounting 2M Xcvr in '05 Toyota Camry

[Steve Noskowicz]

Matt & Vince,
      It is interesting how much RF gets inside the passenger compartment.  From a test I ran, it is clear it is all from the antenna and not from RF cables.  Playing w/cables had little effect.
   
     I had two identical Camrys ('02 & '03) except one had a sun roof.  From low to highest amount of RF in the passenger compartment (using a field strength meter) .
   
  highest:    1/4 wave on trunk
   
  1/4 or 5/8 on Roof were similar.  5/8 lower but probably not statistically significant.
   
  Lowest   5/8 on trunk
   
  All mag mount.  I did some dB estimates, but, alas, that data is lost to history.
   
     However, the surprise was that the sun roof version had LESS internal RF than the non-sun roof for antennas on the roof.  Perhaps the opening formed some sort of slot.  It was probably closer to a 1/4 than a 1/2 wave in the longest dimension.  I had the meter in several places, but focused on the heads of driver & passengers.  Yes there is an issue as to what the feed line was doing with the mag mount.  Oh yes, this was 2 meters.
     Wish I had the cars now because I have access to a Holaday RF survey meter.
   
  73, Steve, K9DCI

 		
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