Furuno FR-1500 MARK-3 Series User Manual page 10

When the gyrocompass or magnetic compass is not connected to IMO type radar, the functions
mentioned below are inoperative.
In this case, the HDG SNSR on the SET UP 2 menu of the Installation menu should be set to OFF.
(See page 5-7 in the installation manual.)
1. Alert and indication for heading sensor do not appear on the screen and also the indication
of HDG does not appear on the screen.
2. The PLOT on the main menu is not accessible. Therefore, the menus of EPA and ATA are
not accessible.
3. On the menu of "FUNC1 SET", "FUNC2 SET" and "FUNC3 SET", the ECHO AVG is not
available. However, echo averaging can be turned on without gyrocompass connection by
setting ECHO AVG ON on the OTHER menu of the Installation menu.
4. On the F 2 MENU, the following are inoperative.
2. TRAIL MODE
15. PLOT MENU
16. MARK MODE
18.DRIFT MENU
26. EXT WP
30. EBL/+/PI
5. MODE on the TGT TRAIL menu is not accessible. The mode of target trail is always
relative.
6. SET & DRIFT on the OTHER menu is not accessible.
7. DEGS DEG on the DEGAUSS menu is not accessible.
8. EXT WPT on the NAV DATA menu is not accessible.
9. The MODE key is not accessible. The display mode is fixed to heading-up mode.
10.EBL/+/PI on the EBL/VRM/+ menu is not accessible.
11.HDG SET on the OTHERS menu is not accessible.
12.The cursor position (Lat./Long.) is not displayed but range and bearing from own ship to the
cursor are displayed.
13.VECTOR T/R and ECHO AVG on the F 1 menu are not accessible.
14.MODE on the MARK menu is not accessible. The mark mode is always relative.
15.RP-17 and ARP-17 are not available.
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