Uniden MHS550 Owner's Manual

Also see for MHS550: Owner's manual User manual Owner's manual

Contents

31Uniden MHS550 Radio Owner’s ManualChannels 75 and 76.TransmittingTo transmit, follow the steps below.Press ▲ or ▼ to select a channel. The selectedchannel number appears on the display along withthe country label, and the selected power setting.Press the PTT switch. TRANSMITTING appears atthe bottom of the screen and remains displayed aslong as you hold down the PTT switch.Notes:You cannot transmit on the weather frequencies. Theyare designated ‘receive’ only. An error tones sounds whenyou press PTT and a weather channel is selected. Thedisplayed weather channel number flashes, and RELEASEPTT KEY is displayed to remind you that you cannottransmit on the selected channel.You cannot transmit on Channel 70, and 15 in the USA.Channel 70 is reserved for digital data only while channel15 is reserved for receive only. If you attempt to transmit,RELEASE PTT KEY appears in the LCD message line.Do not hold down PTT while turning on the radio. An errortone sounds and the same message appears.Pressing PTT halts Scanning. For Scanning and thesettings for Dual and TripleWatch, see Page 51. If thechannel has no carrier, the first press of PTT takes theradio out of scan mode. Press PTT to activate transmitting.Continuous transmitting is limited to 5 minutes byregulations. After this time, an error tone sounds andRELEASE PTT KEY displays. After you release PTT,pressing PTT again restarts the 5-minute time interval.1..••••