Cobra MRF77 Manual

The ability to send your position to another station is an added feature of DSC radios that have
GPS attached. It is handy for rendezvous and rescue situations.
Your CobraMarine VHF radio allows you to choose whether to have the radio automatically
respond to all Position Requests it receives or to alert you to a Position Request and allow
you to choose whether to respond or not — manual reply.
To Set The Position Request Reply Type:
1. Enter the DSC SETUP MENU menu and scroll to
POSITION REPLY with the Up/Down soft keys or the
UP/Down channel buttons.
2. Press the ENTR soft key and observe the current
highlighted setting — AUTO or MANUAL.
3. Use the Up/Down soft keys or the Up/Down channel
buttons to change the setting.
4. Press the ENTR soft key to select the setting and return
to the DSC SETUP MENU.
The ability of your radio to automatically switch to the requested channel when receiving
an Individual Call. In some cases, automatically switching channels may not be wanted,
especially if the radio is being used for Bridge to Bridge communications in a busy port
or waterway.
Your CobraMarine VHF radio allows you to choose whether to have the radio automatically
Change channels to the requested channel in an Individual Call or not.
To Set The Automatic Channel Switch On or Off:
1. Enter the DSC SETUP MENU menu and scroll to AUTO
CHANNL SWITCH (Automatic Channel Switch) with the Up/
Down soft keys or the UP/Down channel buttons.
2. Press the ENTR soft key and observe the current highlighted
setting — ON or OFF.
3. Use the Up/Down soft keys or the Up/Down channel buttons
to change the setting.
4. Press the ENTR soft key to select the setting and return to
the DSC SETUP MENU.
The Individual Call Reply feature is used when receiving Individual DSC calls. When receiving a
Individual DSC Call, you may not want the radio to reply to the call automatically. This features
allows you to disable the automatic reply. The ability to send your position to another station
is an added feature of DSC radios that have GPS attached. It is handy for rendezvous and
rescue situations.
To Set The Individual Reply Auto or Manual:
1. Enter the DSC SETUP MENU menu and scroll to
INDIVID CALL REPLY (Individual Call Reply) with the
Up/Down soft keys or the UP/Down channel buttons.
2. Press the ENTR soft key and observe the current
highlighted setting — AUTO or MANUAL.
3. Use the Up/Down soft keys or the Up/Down channel
buttons to change the setting.
4. Press the ENTR soft key to select the setting and return
to the DSC SETUP MENU.
The Manual position entry feature allow you to enter the time (UTC time), Latitude and
Longitude.
To Enter the Time, Latitude, and Longitude:
1. Enter the DSC SETUP MENU menu and scroll to MANUAL ENTRY
with the Up/Down soft keys or the UP/Down channel buttons.
2. The cursor will begin to blink at the rst number of the
UTC time entry.
3. Use the Up/Down soft keys or the Up/Down channel buttons to scroll through the
number list.
4. Press the ENTR soft key to select a number. This will also move the blinking cursor to the
next number under UTC Time.
5. Repeat steps 5 and 6 to enter additional numbers.
6. After entering the UTC time, press the ENTR soft key to move the blinking cursor to the
rst number under LAT (Latitude).
7. Use the Up/Down soft keys or the Up/Down channel buttons to scroll through the
number list.
8. Press the ENTR soft key to select the rst number and move the cursor to the next
number under LAT.
9. Repeat steps 9 and 10 until the seventh (7) digit of the LAT is entered.
10. After entering the LAT (Latitude), press the ENTR soft key to move the blinking cursor to the
rst number under LON (Longitude).
11. Use the Up/Down soft keys or the Up/Down channel buttons to scroll through the
number list.
12. Press the ENTR soft key to select the rst number and move the cursor to the next
number under LON.
13. Repeat steps 9 and 10 until the eighth (8) digit of the LON is entered.
14. Press the ENTR button to save the entry and the radio will return to the DSC SETUP MENU.
MENU EXIT: You can exit the menu at any time by pressing the EXIT soft key on any screen. This
method will exit to the next highest menu, repeated presses of the EXIT soft key will return the
radio to the radio standby mode. The menu EXIT selection in the menu screen will return the radio
immediately to the radio standby mode. When in the menu, just scroll down until the EXIT option is
highlighted, then press the ENTR soft key.