BFDX BF-P108, Руководство пользователя

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reduce probability of missing message for RX two-way radio. The duration of
preamble can be set by software. When scanning number increases for the target
two-way radio, increase of the duration of preamble is also required accordingly. If
the scanning two-way radio loses data message often, increase this value in all the
TX two-way radios. Nevertheless, a higher preamble will occupy the channel for a
longer time. Thus, increase of the duration of TX preamble (0-8640 ms) can
increase the success rate of receiving data when other two-way radios are
scanning, but data volume (0-8640 ms) able to be transmitted in the channel will be
reduced.
7)
Suspension Duration of Talkaround Group Call (ms)

It is used to set the duration the two-way radio uses previously received or
previously transmitted digital group ID to answer received calls or continue
transmitted talkaround group calling. After the timer of talkaround group calling
becomes invalid, the two-way radio uses the TX address book (digital group)
specified by the channel for transmission. The duration range from 0 to 7000 ms.
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Suspension time of talkaround private call (ms)

It is used to set the duration the two-way radio keeps talkaround private call setting
when a user is to set a private call after a private call is completed (after PTT key is
released). This can prevent re-setting the call each time a user presses PTT for
transmission. During this, the channel in fact is unoccupied, so other two-way
radios are still capable of transmission. After the suspension timer becomes invalid
(you can be prompted with a sound), the two-way radio uses the TX address book
specified by the channel for transmission. The duration ranges from 0 to 7000 ms.
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Access Authentication (only for repeater mode)

In repeater mode, the operating mode of a digital two-way radio includes normal
mode and safe mode.
1. In normal mode, a handset only needs to send a connection signal to the repeater.
After successful connection, the repeater will enable a channel. After this, the
handset can communicate with other handsets to be communicated until the session
is manually disconnected or interrupted for timeout to release the repeater. Quick
access communication of a handset can be realized via this mode.
2. In safe mode, handset A sends a linking signal to be connected with the repeater
first, which will then send the linking signal to handset B. After connection, the
repeater enables a repeater channel and responds with a confirmation signal to
handset A. Handset A can be communicated with handset B normally.
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Power-save Mode