Radioddity Extended manual for Radioddity DB25-D, DB40-D & GD-88 v3.0
© Radioddity 2023 page 181 of 252
Default: Impolite
13.20 RX Group
In order to be able to receive a group call within the channel, a ‘RX Group’ should
be defined and assigned to the channel. Only those groups, that are listed with
their Digital Contact (TalkGroup ID) within the assigned ‘RX Group’ may be heard
when listening to the channel. If set to ‘Off’ you will not hear any group calls on
this channel, unless the group ID is the same as the TX Contact ID (TalkGroup ID).
This function is used to receive more than just the group selected by the specified
entry of the ‘Contact List’ when listening to the channel.
Default: Off
13.21 Encryption List
Users can use this feature to encrypt the selected digital channels. Encryption is a
kind of software based scrambling solution and not very reliable, thus only to
prevent eavesdropping. Part of the transmitted signal and user identification is
not encrypted. The receiver must have the same encryption key and encryption
type as the transmitter, in order to decrypt the encrypted voice calls and receive
encrypted data. You can enable or disable the encryption of the channel by using
a short press or by long press custom button (‘Encryption On/Off’). The radio uses
the encryption settings of the selected channel to transmit encrypted signals, but
the receiver does not need to do so. The encrypted channel is still capable for
receiving a clear transmit signal (After decryption).
Before Using an ‘Encryption List’ please configure its key ID and digital encryption
key initialization, otherwise it will use the default values.
Default: Off
Notes: In Amateur radio networks using encryption techniques is not allowed.
13.22 Scan List
A predefined ‘Scan List’ may be assigned to the channel. During the scan, all
members on the specified list will be scanned for activity. If the parameter is set
to ‘Off’, the scan function on this channel will be disabled, (Including auto scan).
Notes: If set to ‘Off’, auto scan will be disabled.
13.23 Contact
Each digital channel may be assigned a specific Contact. Whenever the [PTT]-key
is pressed, the radio will start to transmit a call on the selected channel and
targeted to the specified contact our group. If a group call is initiated and another
Contact ID (group ID) is already active within that channel, the call will be
terminated to signal that a call may currently not be initiated.
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