Guardian G25AMK005, Техническое руководство

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3-20 G U A R D I A N V H F 1 1 0 W M O B I L E
All transfers and operations on the fill port are cyclic redundancy checked (CRC) and acknowledged.
3.6.4.2.1 Cloning
The radio can export channel data to other radios. Data export is initiated by a user interface operation at the
exporting radio. The exporting radio emulates a PC programmer during the data transfer.
Cloning of keyfill data
is not allowed.
3.6.4.2.2 Radio Keyfill
The DSP software manages the radio keyfill protocols.
3.6.4.3 Radio Control Port
It is possible for an external PC to control the functioning of the radio. This provides the following facilities:
•
Radio status read to export the radio serial number, revision status, history, usage, etc.
•
Set external control mode
•
Set radio transmit frequency, power level, and mode
•
Set radio receive frequency and mode
The transceiver mode control also allows transmission of 1 kHz test tones in analog modes, and BER test patterns in
digital modes. The receiver mode control allows the continuous (every 0.5 second) output of the bit error count per
frame in digital modes.
3.6.4.4 PC Serial Port Driver
The controller software controls the H8 serial port to implement the asynchronous data formats and baud rates
(9,600, 19,200, and 38,400) for the PC serial port. The serial port driver software also controls the 232OFF signal to
maintain the RS232 in its low-current standby state, except when data is driven out and while RTS is asserted.
3.7 User Interface
The radio interface is described in the following paragraphs.
3.7.1 Display
The radio has an 80 x 32 dot matrix LCD display. Some of the features of the display are:
Feature Description
Phone Indicated by an icon in the top, right of the display (for future use)
Scan Indicated by SCAN****, SRCH****, or ZONE**** flashing in the top row of the display
Encryption Indicated by a key icon
Power level Indicated by HI/LO/2W in the bottom row of the display
Priority scan Indicated by SCANP1 (P2), SRCHP1 (P2), or ZONEP1 (P2) flashing in the top row of the
display
Receive only channel Indicated by an RX in the bottom, left corner of the display
Talkaround Indicated by a TA in the bottom, left corner of the display
Repeater mode Indicated by a receiver icon in the bottom, left corner of the display
Emergency message EMG displays in the bottom, left corner when the radio is transmitting an emergency
message
3.7.2 Optional DTMF Microphone
The radio is programmed using DTMF microphone. For detailed instructions on programming the radio a DTMF
microphone, see the Guardian operator manual (G25AMK004).