Standard Horizon MATRIX GX2100 Owner's Manual page 41

10.11.2 Operating the FOG HORN mode
The user can select from "Underway", "Stop", "Sail", "Tow", "Aground", "An-
chor", "Horn", and "Siren".
1. Press the one of the soft keys momentarily, then
press the [ PA/FOG ] soft key.
Note: The [ NEXT ] soft key may have to be pressed
to see the [ PA/FOG ] soft key if the soft keys have
not be customized.
2. Rotate the CHANNEL knob to select "FOG", then
press the [ SELECT ] soft key.
3. Rotate the CHANNEL knob to select one of the eight
functions described above.
4. Press the [ ENT ] soft key.
5. On the "Horn" and "Siren" modes, press the PTT
switch to activate the tone through the HAIL/PA
speaker.
Rotate the CHANNEL knob to control the AF output level. The AF output
level can be set from 0 to 30 watts.
6. To listen back (GX2100 only), rotate the PWR/VOL knob.
7. To exit the FOG HORN mode, press the [ CLR ( WX )] key.
GX2000/GX2100 Page 41