User's Manual

significant digit of fixed 0)
4）Group ID
l The valid set bit for group ID contains 7 digits. Decoding is possible when group ID matches
calling ID of a private call (RX). (it is increased from right to left with the most significant
digit of fixed 9)
5) Repeater ID
l The valid set bit for repeater ID contains 7 digits. Decoding is possible when repeater ID
matches repeating device ID (TX). (it is increased from right to left with the most
significant digit of fixed 8)
6) Duration of TX Preamble(ms)
l Preamble is a bit string added before data message or control message (text message
transfer, position message transfer, registry, two-way radio detection, single-call, etc)
before transmission. This preamble increases SMS length to 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)
l 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.
8）Suspension time of talkaround private call (ms)
l 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