Radioddity DB25-D, Расширенное руководство, Страница: 40 / 209

Radiod d ity Extended manual for Radiod d ity DB25-D & GD-88 v2.0
© Radiod d ity 2022 page 40 of 209
Analog Functions
Function Description
Analog channel
call
An analog call is a call on an analog channel.
Narrow / Wide
Band
Working bandwidth for the radio
(Narrow band: 12.5 kHz, Wide band: 25 kHz)
Squelch Level
It is the signal strength required to adjust the received signal.
Normally the higher squelch level, the higher received signal
strength is required. Settable squelch level is from O - 9. Level
0 is normally open, and there is background sound from the
speaker once the radio is on. Level 9 is the highest and the
required received signal strength is the strongest.
Busy Channel
Lockout
If it is ON, when received the carrier signal, it is prohibited to
transmitting when pressing the [PTT]-key.
Monitor
Monitor allows the user to open the receiver squelch manually
to listen to on-channel signals.
CTCSS
CTCSS code for RX radio must be same as TX radio, so that the
audio can be received successfully
DCS
DCS code for RX radio must be same as TX radio, so that the
audio can be r11ceived successfully
Digital Functions
Function Description
Private call Private call is a one-to-one call.
Group call Group call is a one-to-many call.
All call
All call is a call to all contacts on the current digital channel.
Not used by ham operators.
Talk Around
When the repeater fails to work or the radio exceeds the
coverage of the repeater, it can communicate off-line (RX & TX
at the same frequency) to communicate
Roaming
Setting
Roam Mode, RSSI Set, Connect Check Timer, Connect Recheck
Timer, Connect Timer
Roaming
When the radio moves from one site to another, it will
automatically find the next available site through roaming.
Recording Record any received and/or transmitted audio
DTMF RX/TX
reminder
Used as the TX PTT prompt tone and RX prompt tone before
receiving the voice.
TDMA direct
mode
TDMA direct mode Is used to divide a direct channel (simplex)
into two Time Slots lo allow efficient channel usage. Multiple
parties may share the channel without interference
depending on slot setting.