7 SPECIAL FUNCTIONS
Special functions can be programmed to each of the keys/buttons on the SDM630
Control Head by the FPP. These special functions can be simple short cuts to specific
menus or an on/off toggle facility for specific actions.
7.1. CHANNEL UP AND DOWN
These function keys will change the channel in the upward or downward directions.
7.2. ZONE UP AND DOWN
These function keys will change the zone in the upward or downward directions.
7.3. SCAN ON/OFF
These function keys will start and stop Scanning.
7.4. SKIP
The Skip function removes a scan channel from the scan list if the Skip button is
pressed while stopped on that channel. The channel is only restored to the list when
the channel is re-selected.
7.5. TALK AROUND ON/OFF
On a repeater channel only, a Talk Around function key allows the radio to transmit on
the base station’s output channel, so the user can talk directly to other mobiles on the
channel, while the repeater is out of service or out of range.
When the key is pressed again (or the Channel is changed) the mobile’s Tx channel
reverts to its normal setting.
Talk Around mode is indicating to the user by a double beep at the start of each PTT.
7.6. LOW POWER
The Low Power function key forces the radio to low power. Pressing the function
button again puts the radio back to the power level defined for the current channel.
The “forced low power state” is not affected by channel/zone changes.
7.7. CO TO CHANNEL 1, 2, 3 OR 4
These functions select predefined Channels 1, 2, 3 or 4 as appropriate and returns to
the defined channel on the second press. The defined channel will be redefined to
Doc Number: TNM--U-E-0108 ISSUE 1.5 Page 59
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