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8/8/2003/ Ellensburg, WA.
GPSFlight tested the range of the TX-232W and RX-BASE II units using 1/2
wave dipole antennas to see what the limit on total line of sight distance
over land would be in real-world testing. This test positioned the base unit on a mountain with line
of sight view back up a valley. The TX-232W was mounted on an
automobile that then returned towards Seattle.
The test showed that with LOS, the 1/2 wave
dipole antenna provided AT LEAST 16 miles range. When the TX-232W was
behind trees or buildings at great distance, the signal was lost, but as it
traveled between these things, the signal got through. With clear line
of sight view, a range of more than 16 miles can be supported using stock
1/2 wave dipole antennas at ground level. Placing the receive antenna
up high on a pole would increase range. We actually aborted the test
at 16 miles because we ran out of time. We estimated a likely 22 mile
range in this case, line of sight, but over rolling terrain.
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