User's Manual

Rev B
17
SRX_400 OPERATIONS AND EXERCISES
Preface to the Examples
The following exercises are designed to enhance familiarity with SRX_400 functions and
operating modes . They are modeled as faithfully as possible on real applications and include a
basic radio tracking session, an optimization procedure and an automatic monitoring system
installation.
Example 1: Tracking
You are studying caribou populations on a group of islands off the Labrador coast. There is
some physiognomic evidence that these populations have experienced some degree of isolation,
but a quantitative measure of their independence, and in particular the impact on their genetic
viability of a proposed mainland development, cannot be assessed without some behavioural
data. You have 200 animals instrumented with radio collars, 50 on each of four islands. The
transmitters are at individual frequencies spaced 10KHz apart. Your method is to overfly the
islands twice a week (weather permitting) and try to locate as many of these animals as possible.
One strategy that occurs to you is to install your frequency list in four separate partitions of
the scan table, one for each island. This will keep your initial search list small, your "round trip"
scan time short, and your probability of missing an animal while your receiver is scanning
through a largely inactive list as low as possible. You recognize, however, that in order not to
bias your experiment, you will need an efficient procedure for finding animals which have
"jumped" islands, so you have reserved a partition also for the complete list, one for a
combination of the lists from islands 1 and 2 (which are close together), and one for a
combination of the lists from islands 3 and 4 (which are closest to the mainland, though distant
from each other). This gives a total of 7 tables.
PROCEDURE: SELECT TABLES AND ENTER FREQUENCIES
From the command environment, press
SHIFT FTABLE
The display will prompt you to make a selection using one of the numbered keys.
To select the table you want to be active, press 4. The display will prompt you to
make a selection of a table where you wish to store the frequencies, and will make
this the active table.
Press the desired number between 00 and 15. Note: 2 digits must be entered. After
you have entered a two digit number the FTABLE menu will once again be displayed.
Press 1 to "add" frequencies.
Enter the frequencies you wish as six digit numbers, or five digit numbers if you
have a 30 or 50MHz receiver. The decimal point is supplied by the program but
nothing bad happens if you enter your own. You may keep entering frequencies
one after another; when you have entered all the frequencies you want, press ESC.
This takes you back to the FTABLE menu. You can now select another table to enter
Deleted: ¶
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