Working Channel Recall; Transmitter Power Setting; Channel Scanning - M-tech MT-500 Owner's Handbook Manual

6.3 Working Channel Recall

Rather than using the SELECT/ENT knob or microphone keys to change chan-
nels, this feature allows quick switching between the last working channel
and the current primary channel.
To quickly switch between the last working channel and the Primary Calling
Channel:
• Use the SELECT/ENT knob or microphone keys to select a working chan-
nel, such as channel 68.
• Press the
appears in the channel number display.
• Press the
appears in the display. Each time the key is pressed, channel selection
toggles between the primary channel and the working channel.

6.4 Transmitter Power Setting

The transmitter has two power settings, 25 watts or 1 watt, which are indi-
cated by HI or LO appearing in the upper line of the display. The normal
power setting is HI for all channels where 25 watts is allowed. Use the 1 watt
setting for communication with nearby vessels (bridge-to-bridge) or facilities
(drawbridges).
• Press the
H/L
watt output.
Channels 15, 17, 75 and 76 are restricted to 1 watt maximum power and
will cause the error beep if the HI/LO key is pressed.

6.5 Channel Scanning

There are three channel scanning modes; Priority Scan, All Scan and Memory
Scan. In the Priority Scan mode, Channel 16 is checked for activity every 2
seconds, even if, the scan is halted by traffic on a working channel. When
scanning is halted by traffic, the scan pauses while the channel is active.
Scanning resumes, after a brief delay when the channel is clear. If the PTT is
pressed, in reply to a received signal, scanning is cancelled.
18 MT-500
key momentarily. The current primary channel number
16
key again momentarily. The working channel number
16
key to toggle transmitter power between 25 watts and 1
SPECIAL NOTE