User's Manual
28
direction of the strongest signal to obtain a more accurate position estimate, in which case you
can stop the scan by pressing the decimal point key
l
If the program has already scanned to the next frequency before you are able to stop the scan,
press
SHIFT
SCAN
to assign the arrow keys to manual scan functions. Then press
to backup one frequency.
As you get closer to the signal, the receiver will start showing pulse interval (or pulse rate) and
relative signal strength on the bottom line of the display. You may use the signal strength
indication to guide the airplane, and to provide an indication of the point where you have passed
over the animal. When you have fixed the animals location to your satisfaction, note its position.
After locating an animal, you are no longer interested in the transmitter you have identified, and
you would rather do without the overhead of continuing to look for it. Press
SHIFT
F TABLE
to remove the frequency from the table. Then use the decimal point key again to restart the scan.
As you successfully locate more and more animals, your scan tables become sparser and your
search for the remaining animals intensifies. You may find that using one or two large tables is
actually more efficient than having many small ones, especially if your populations turn out to be
less isolated than anticipated.
Before starting a flight, you will normally want to restore the frequency tables to their original
condition. You may do this easily using the FTABLE/Copy utility.
PROCEDURE: RESTORING THE FREQUENCY TABLE
To restore a table to its "original" condition after removing frequencies during a SCAN
session,
from the command environment press