Connecting To A Charplotter; Connecting To An External Speaker - Uniden UM425 VHF DSC Owner's Manual

Installing the Hardware
6. If Daylight Savings Time is currently in effect, select
Savings Time is not currently in effect, select Off.
7. Press the
returns to the GPS Setup menu.

Connecting to a charplotter

The UM425 provides a standard NMEA0183 GPS output that you can
connect to a chartplotter. When it receives another boat's position data in a
DSC call, the radio sends the position data to the chartplotter so you can see
the location:
1. Disconnect the
radio.
2. Connect the ORANGE wire of the
(-) wire of your chartplotter's NMEA data INPUT.
3. Connect the YELLOW wire of the
(+) wire of your chartplotter's NMEA data INPUT
4. Be certain all wire connections are secure and that all open wires are
adequately covered.
5. If you are finished connecting all external accessories, line up the
arrows on the side of the accessory cable and connector and connect
the accessory cable to the accessory connector on the back of the
UM425.
NOTE: To extend the life of the radio, use waterproof tape to seal
electrical connections.

Connecting to an external speaker

You can use an external speaker to monitor the radio from a different part of
your boat or in a noisy environment. If you adjust the
the radio, it will also adjust the external speaker volume.
The UM425 supports an external speaker with the following specifications:
•
•
button. The radio activates the new time setting and
SELECT
accessory cable from the accessory connection on the
Minimum impedance of 4 Ohms
Minimum power handling of 10 Watts
accessory cable to the NEGATIVE
accessory cable to the POSITIVE
48
On. If Daylight
knob on
VOLUME-PWR