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HX600SPage 30
8. SCRAMABLER OPERATION
8.1 VOICE SCRAMBLER UNIT
The optional FVP-31 Voice Scrambler Unit permits secure voice communi-
cations with stations within your network, which prevents others from listen-
ing using normal communication equipment.
To activate the Voice Scrambler:
1. Turn the radio off.
2. Hold down the SQL switch, then turn on the transceiver while still holding
down the SQL switch to enter the Setup Mode.
3. Press the SQL switch momentarily to select the
Menu item (SCRAMBLER).
4. Press the [S] or [T] key momentarily select the
scramble code (SC1, SC2, SC3, or SC4).
5. When you have completed your selection, press the SQL switch to save
the new setting, and then press the PTT switch to exit to normal operation.
6. To disable the Voice Scrambler, select “oFF” in step 4 above.
Note: Voice Scrambler may not be activated on Marine Channels 16 and 70.
9. OPERATING PRACTICES
9.1 EMERGENCY (CHANNEL 16 USE)
Channel 16 is known as the Hail and Distress Channel. An emergency may
be defined as a threat to life or property. In such instances, be sure the
transceiver is on and set to CHANNEL 16. Then use the following procedure:
1. Press the microphone push-to-talk switch and say “Mayday, Mayday,
Mayday. This is
, , ” (your vessel’s name).
2. Then repeat once: “Mayday,
” (your vessel’s name).
3. Now report your position in latitude/longitude, or by giving a true or mag-
netic bearing (state which) to a well-known landmark such as a naviga-
tion aid or geographic feature such as an island or harbor entry.
4. Explain the nature of your distress (sinking, collision, aground, fire, heart
attack, life-threatening injury, etc.).
5. State the kind of assistance your desire (pumps, medical aid, etc.).
6. Report the number of persons aboard and condition of any injured.
7. Estimate the present seaworthiness and condition of your vessel.
8. Give your vessel’s description: length, design (power or sail), color and
other distinguishing marks. The total transmission should not exceed 1
minute.