Hytera DMR System Planner
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5.3.2 Encryption
Can both encryption mechanisms apply to one terminal? Yes, but each channel
supports one mechanism only.Hytera. Hytera provide three options: 40 bits, 128 bits
and 256 bits.
Will encryption affect the communication coverage and voice quality? No at all.
Will the encryption settings work for both parties operating on the same channel?
Yes, but the Encrypt option applies to the transmitting party only, that is, if this option
is checked, the data to be transferred will be encrypted; otherwise, the data will not
be encrypted.
Can A Radio with Hytera Encryption and That with DMRA Encryption Communicate
with Each Other?
No, they cannot communicate with each other, because of the different ways in the
key generation and embedding, as well as processing the encryption parameters
between Hytera encryption and DMRA encryption. Advanced encryption provides
two types of protocols: Hytera encryption and DMRA encryption. Hytera encryption
adopts the encryption algorithm innovated by itself, and DMRA encryption is DMR
standard encryption.
5.3.3 Pseudo Trunking
Pseudo Trunk supports conventional voice and data services, including call, SMS
and auxiliary function. The auxiliary function mainly consists of Alarm, Radio Check,
Call Alert, Kill/Activate, Priority Interrupt, etc. In R5.0, Telemetry will be supported.
In Direct mode, the slots on the channel are assigned dynamically. Slot 1 is used by
default. While in Repeater mode, the slots are fixed, and the repeater is used for
transferring the received voice signals and data. Comparatively, in Direct mode, the
subscriber will select the time slot dynamically for transmission. The first used slot
will be taken as Slot 1, and the latter one to be used is considered Slot 2. While in
Repeater mode, Slot 1 and Slot 2 are fixed, but the subscriber, except the one that
has designated the Pseudo Trunk Tx slot, can use any one of them for transmission.
Pseudo trunking supports the Alarm or GPS Revert Channel setting on Pseudo
Trunk channel, but these settings are not suggested. Pseudo Trunk mode has
dynamic time slots to choose, so the variable of the related services needs to be
backed up sometimes in Slot 1 and sometimes Slot 2. This is complicated. Since the
Alarm and GPS Revert Channel services require stable slots, so they are not
suggested to be used on Pseudo Trunk channel.
Summary of Contents for PD70X Series
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Page 174: ...Hytera DMR System Planner 170 For your notes ...
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