Tt Performance Test - Furuno FCR-2107 Operator's Manual

4.17

TT Performance Test

A test program is provided for assessing overall performance of the TT. Normal operation is suspended and the
indication "S" appears at the bottom of the effective display area during the test. The test may be terminated at any
time.
1. Use the trackball to select the MENU box then push the left button.
2. Spin the scrollwheel to select Initial Settings then push the scrollwheel.
3. Use the trackball to select the small black triangle on the Initial Settings menu.
4. Spin the scrollwheel to select TT Test then push the scrollwheel.
5. "S" flickers during the test. It takes approximately three minutes for all vectors to be displayed. The test does
not need echo signals, gyro nor speed log input. Three targets having different speeds and courses, as shown in
the table below, are simulated automatically, together with current targets. These targets can be treated as you
would an ordinary TT – you can cancel them, display their data, etc.
6. The test continues for ten minutes and repeats.
To terminate the test, push the STBY TX key or select the TX STBY box at the bottom left corner then push the left
button.
Select any simulated target with the cursor and check that the selected target shows the course and speed as in the
table. CPA and TCPA shown in the table are with ship's speed of 0 kn. These values change with time and own
ship's movement.
Range
Target A 3.0
Target B 2.0
Target C 7.0
A
C
B
S
Bearing Speed Course
45.0 20.0
120.0 5.0 120.0
270.0 100.0 120.0
CPA TCPA
0.0 2.1 -6.4
0.0 -24.0
3.5 3.5
4. Tracked Target (TT) Operation
4-25