Axnes AS
Document number
Revision
Date
Page 2-2
•
Logical name of the configuration
•
Radio parameters (frequency, modulation, and channel bandwidth)
•
Group subscriptions for receive
•
Group subscriptions for transmit
•
Configuration of remote PTT control (handheld activation of PTT from the PNG Base
Station to the intercom)
The different pre-programmed configurations can be selected at start or during mission from
the BST30/35 menu system. Typically, there will be several configurations when different
radio channels shall be made available. There can also be different configurations for
different mission types as e.g. SAR and EMS missions.
The different configurations are selected on the BST30/35 menu system with the menu
navigation buttons and identified by the logical name. When selected, all relevant parameters
are loaded.
On the handheld, the configuration is selected with the up/down arrows and identified with a
short two letter name and a long logical name (scrolling display).
Pre-programmed configurations can either be pre-ordered from the equipment vendor or
changed by a qualified equipment operator with a PC based programming tool.
2.2.1 Encryption
With the PNG system all user data are encrypted according to the AES-256 encryption
standard before they are transmitted over the air. When delivered from factory, the PNG
Base Station uses a default encryption key called “AXNES DEFAULT”. Changing this
encryption key requires the user to acquire an encryption key programming kit. Note that the
PNG Base Station and all handhelds in a system must use the same encryption key in order
to connect and communicate with each other.