Using Your Radio
Setting the squelch level too high may prevent you from
hearing weaker transmissions. If you are having difficulty
hearing a transmission, try setting the squelch level lower.
NOTE
Setting the UIC channel mode (USA/CAN/INT)
First ensure that you are in the VHF band. Press and hold BAND/MENU
to enter the Menu settings. Press ENT/L/M/H till you get the option INT
(default, it will flash on the LCD). Press the CHANNEL UP or CHANNEL
DOWN to scroll through the marine channels for the USA, Canada, or
International waters. Press ENT/L/M/H to save the setting.
Selecting a Channel
Press CHANNEL UP or CHANNEL DOWN briefly to scroll through
the channels one channel at a time. Press and hold CHANNEL UP or
CHANNEL DOWN to quickly scroll through the channels.
Making a Transmission
Press and hold Push to Talk.TX displays while you are transmitting.
Release Push to Talk when you’re finished talking to let the other party
respond.
• To prevent stuck microphone problems or situations where Push to
Talk is pushed accidentally, the radio limits your talk time to 5 minutes
(VHF Marine) and 3 minutes (UHF CB) in a single transmission.
•
For the best sound quality, hold the microphone about two inches
away from your mouth.
• Some channels are Receive Only. See the channel list starting on
page 33 for a list of receive-only channels.
There is a time limit for continuous transmission. After
the time limit, the unit goes into a PTT error condition;
the timeout tone sounds, TX displays, and the channel
indicators blink.
NOTE
16
UHF CB+VHF Marine Radio
UNIDEN MHS157
