REMOVING GROUP SCAN CHANNELS
To DELETE a programmed channel from the Group Scan Memory.
1. Rotate the CHANNEL SELECTOR switch (20) until the channel you wish to remove is
displayed. Note that the MEM indicator (10) should be lit, indicating that this channel is
currently programmed in the memory.
2. Press and hold the MEM switch (16) for about 2 seconds until a BEEP is heard twice.
The MEM indicator (10) should now be extinguished.
OPEN SCANNING
To commence open scanning, select the OPEN SCAN mode by selecting the OS/GS
Select switch (4) to the IN position. Then select the SCAN switch (3) to the IN position.
The SUNDOWNER UH-077 will commence scanning the programmed channels, and will
indicate each channel on the CHANNEL indicator (12) as it is scanned.
When a busy channel is found, the radio will 'lock' onto it, and will remain there for as long
as the signal is present, and for 3 seconds after the transmission ceases. This allows the
SUNDOWNER UH-077 to hold the channel during short breaks in the conversation. Once
the channel has remained clear for 3 seconds, the radio will resume scanning.
If you don't wish to listen to a busy channel, you can SKIP over it by pressing either the
MEM switch (16) on the radio, or the MEMlSKIP switch (2) on the microphone. The receiv-
er will immediately resume scanning.
To manually hold a channel indefinitely (temporarily inhibiting the scan function), momen-
tarily press the PTT switch (1), and the radio will cease scanning and will hold on the
channel which was being scanned. The HELD channel can now be used for normal trans-
mission and reception.
To RESUME scanning - whether automatically 'locked' on a busy channel, or manually
HELD - press the MEM switch (16) on the front panel, or the MEM/SKIP switch (2) on the
microphone, once. The radio will begin scanning again.
NOTE: 1. During OPEN SCAN mode, the CHANNEL SELECTOR switch (20) is igno-
red.
2. The scan rate in this mode is 70 msec per channel, Le. all 40 channels can be
scanned in 2.8 seconds.
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'MEM'Light
Remove
OFF
Select
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Select
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