<div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Matt & Vince,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> 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.<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> 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) .<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial">highest: 1/4 wave on trunk<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">1/4 or 5/8 on Roof were similar. 5/8 lower but probably not statistically significant.<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Lowest 5/8 on trunk<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">All mag mount. I did some dB estimates, but, alas, that data is lost to history.</SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> 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.<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Wish I had the cars now because I have access to a Holaday RF survey meter.<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">73, Steve, K9DCI</SPAN></div><p>
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