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3-6 Set the Priority Channel (WATCH MODE)
If you have the 721/725 EU, watch mode is similar to a dual watch, scanning between the priority channel
and the working channel. CH16 is the priority channel.
If you have the 721/725 US and are operating on USA or Canadian channel banks, you can set the priority
channel to cover both CH16 and CH09 as well as the working channel, as follows:
RADIO SETUP
KEY BEEP
INT SPEAKER
> WATCH MODE
3-7 Weather Alert (WX ALERT)
The NOAA provides several weather forecast channels on USA and Canadian channel banks. If severe weather
such as storms or hurricanes are forecast, the NOAA broadcasts a weather alert on 1050 Hz. You can set up
the radio to pick up weather alerts, as follows:
RADIO SETUP
INT SPEAKER
WATCH MODE
> WX ALERT
3-8 NMEA or NAVBUS protocol (COM PORT)
You can add the radio to a group of instruments using NMEA or NAVBUS protocol.
NAVBUS is automatically activated when present, so that data such as barometric pressure and history,
temperature, DSC polling positions and distress data are available to any other Northstar instruments using
NAVBUS. However, the barometric and temperature readings from the radio can be turned OFF if you prefer
to use the readings from a different instrument.
Select your GPS data source to come from either NMEA or NAVBUS as follows:
3-8-1 NMEA CHECKSUM
RADIO SETUP
WATCH MODE
WX ALERT
> COM PORT
1.
Select RADIO SETUP, then COM PORT.
2.
Select NMEA, then press ENT or push the rotary knob to show the CHECKSUM option.
3.
CHECKSUM on is the usual setting. The cursor is at ON. Press ENT or push the rotary knob to confirm the
setting and return to the menu.
24
WATCH MODE
> ONLY 16CH
16CH+9CH
(US only)
WX ALERT
ON
> OFF
(721 / 725 only)
COM PORT
> NMEA
GPS SOURCE
BARO & TEMP
Northstar Explorer VHF Series: 721/725 Operation and Installation Manual
1.
Select RADIO SETUP, then WATCH MODE.
2.
Select ONLY 16CH for dual watch mode, or
16CH+9CH for tri watch mode.
1.
Select RADIO SETUP, then WX ALERT.
2.
Select ON then press ENT or push the rotary
knob to confirm the setting and return to the
menu. (If you select OFF, WX channel will not
be watched during scanning.)
3.
When a weather alert is broadcast, the alarm
will sound. Press any key to hear the weather
alert voice message.
NMEA
CHECKSUM
> ON
OFF
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