VK3ZPF - ROTOR HUNTER DISPLAY
Rotor hunter display showing transmitter at 1 o'clock
ROTOR HUNTER
- CHANNEL A
'ROTOR HUNTER' is able to display 2 signals at once. The example above
shows only channel A. When showing both channels, the channel B plot
is shown dotted and the channel B information is shown directly below channel A.
- Peak direction
When fox hunting, it is easier to give directions to the navigator or driver
as a value of the clock rather than as a degree value. The value shown
on 'ROTOR HUNTER' is rounded off to the nearest 1/2 hour value.
- Peak degrees
This is the peak value of the signal displayed, determined by finding the
middle of the peak result values. A line is drawn from the center of the polar
plot through the signal peak to assist the viewer.
- Peak signal
The peak signal is included for use in later versions for automatic control of
the incoming signal attenuators.
- Average signal
The Average signal is derived by dividing the total of all sampled values by the
number of samples taken.
- Ratio peak/ave
The ratio of peak to average is included for use in later versions to decided
if a pattern shown has a high reflective component.
- SPR
Samples Per Revolution is displayed as an indication of the rotation speed,
a higher value indicates a slower rotation speed.
- Invert
'ROTOR HUNTER' can display the inverted results to assist if using 'NULL' type
antennas such as the lambda loop.
- Factor
When receiving very weak signals, rotor hunter can multiply the results by a
factor between 1 and 5. This can be a great help in making small signal look
big.
Copyright 1999 - Peter Fraser - all rights reserved.