Uniden MHS450 owner manual Both Watches and Weather Channel

To disable Triple or Dual Watch and revert to scanning only stored channels, press and hold 16/9/TRI for 2 seconds. Channel 16 and 9 are no longer checked. The radio continues to scan only stored memory channels. CHANNEL SCAN appears on the bottom and each channel number is displayed in sequence.

Both Watches and Weather Channel

If both the Weather Alert and the TripleWatch features are enabled when you press SCAN/MEM, the radio starts checking the memory channels in ascending order. Then it checks channel 9 and 16 every 2-seconds and finally, it checks the active weather channel approximately every 7 seconds, looking for the alert tone (1050Hz). The radio then repeats the cycle. If the radio detects a weather alert tone during the check cycle, it remains on the weather channel until you disable the weather mode. See the flow graphic.

Note:

•During SCAN mode, if the radio detects a signal, it stops scanning and remains on the detected channel for 2 seconds after the activity ends before resumption of scanning.

•During scanning, you can press SCAN/MEM, 16/9/TRI, or WX/ALERT to exit the scanning mode and return directly to the marine channel display mode.

•All channels, except CH70, and the weather channels, can be stored in memory. When you turn off the radio, all memory stored channels are retained so that upon turning the radio on again, they are immediately available.