Radioddity Extended manual for Radioddity DB25-D, DB40-D & GD-88 v3.0
© Radioddity 2023 page 177 of 252
13.7 RX Freq
Users can set the channels receive frequency (in MHz). The possible frequency
depends on the available frequency ranges of the Radioddity DB25-D, DB40-D or
GD-88.
In ‘Digital’ mode, the Radioddity DB25-D, DB40-D and GD-88 do not support
simplex DMR Tier 1 operation with different TX and RX frequency. Whenever the
RX and TX frequencies are different, the channel will be defined as a repeater
channel (using DMR Tier 2), using TimeSlots to communicate with the repeater.
13.8 TX Freq
Users can set the channels transmit frequency (in MHz). The possible frequency
depends on the available frequency ranges of the Radioddity DB25-D, DB40-D or
GD-88.
In ‘Digital’ mode, the Radioddity DB25-D, DB40-D and GD-88 do not support
simplex DMR Tier 1 operation with different TX and RX frequency. Whenever the
RX and TX frequencies are different, the channel will be defined as a repeater
channel (using DMR Tier 2), using TimeSlots to communicate with the repeater.
13.9 Power
For each channel the transmit output power can be set independently. You can
edit it through programmable buttons of short key or long key (H/L Power) or the
menu for power function (‘Menu’ -> ‘Parameters -> ‘Power’).
Options: High Use high output power whenever a stronger signal is required
to enhance the transmit range.
Low Use the low option for short range communication
Default: High
13.10 RX Only
Each of the channels defined within a zone may be set for receive only.
Options: On Limit the channel to only receive
Off Transmitting and receiving is possible for that channel
Default: Off
13.11 Alarm
Users can decide to show a visual notification when they received an alarm call. If
the function is disabled, the radio will not respond when it receives an alarm call.
This option is based per channel.
Options: Off Disable decoding of alarm call
On Enable decoding of alarm call
Recommended: Off
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