until you locate the one with the best reception.
6.Press WX/ALERT to return to marine Channels 1 to 88A.
Selecting a Channel
1.To receive marine transmissions and transmit signals, select a working channel. When you first apply power, the screen displays the default band (Marine USA), the default power setting (5 Watts), and the battery power level icon.
.To change the channel, press ▲ or ▼. The default channel names appear next to the channel numbers along the left border of the screen. To change (personalize) the channel names, see Page 40.
Setting the Transmitting Power Level
You can select the transmitting power for all channels except those designated as Receive Only or Low Power Channels (see the Status column of the Frequency Charts for more details).
Repeatedly press and hold BAND/1/2.5/5W for about 3 seconds. Each time you press the key, the power output level changes and the corresponding icon appears on the display. A rapid double beep sounds to confirm the change.
Note: for those channels designated as 1W maximum, even though you have set the power level to either 2.5 or 5W,
1W is displayed and used. Channels 13,17,67, and 77 in the US are an exception. Normally these channels are also designated for normal operation as 1W channels. However, in emergency, if you press and hold the PTT switch and at the same time you momentarily press 1/2.5/5W, the power level changes from 1 to 5W with the
You cannot override the 1W power level setting for
30 | Uniden MHS550 Radio Owner’s Manual |