Motorola ASTRO XTS 3000 产品宣传页

Modulation:

C4FM of QPSK-C family (Compatible Quadrature Phase
Shift Keying)

Protocol:

ASTRO:

4.8 kbps VSELP,2.1 kbps Error
Correction Coding, 2.7 kbps
Embedded Signaling

Project 25-CAI

4.4 kbps IMBE, 2.8 kbps Error Correction
Coding, 2.4 kbps Embedded Signalling

SECURENET:

12 kbps CVSD

Channel Bandwidth:

ASTRO VSELP
& Project 25-CAI
and Analog:

12.5 kHz

SECURENET & Analog:

20/25/30 kHz

Voice Coding Method:

VSELP: Vector Sum Excited Linear Predictive Coding
IMBE (CAI): Improved Multi Band Excitation
CVSD: Continuously Variable Slope Delta Modulation (for
SECURENET mode)

Voice Truncation:

None (250 msec for SECURENET mode)

Frame Re-sync Interval:

180 msec (clear digital mode)

Forward Error Correction:

Golay code

Error Mitigation:

(VSELP): Dual Level
Level 1: Extrapolates and replaces 30 msec voice frames

that exceed the error correction algorithm tolerance

Level 2: Progressive muting of 30 msec voice frames that are

too severely damaged for Level 1 replacement

Error Mitigation:

Project 25-CAI (IMBE): Dual Level
Level 1: Extrapolates and replaces 20 msec voice frames

that exceed the error correction algorithm tolerance

Level 2: Progressive muting of 20 msec voice frames that are

too severely damaged for Level 1 replacement

Code Book Structure:

ASTRO VSELP: Linear sum of basic vectors
Project 25 (IMBE): No Code Book

FEATURES

ASTRO XTS 3000

™

Digital Portable Radio

GENERAL PERFORMANCE SPECIFICATIONS

SIGNALLING (ASTRO MODE)

Signalling Rate:

9.6 kbps

Digital ID Capacity:

16,700,000 IDs

Digital Network

Access Codes:

4,096 network site addresses

Digital User Group

Addresses:

4,096

Energy Management:

Automatic 3dB RF cutback based on infrastructure RSSI
signalling

Error Correction Techniques:

Golay, BCH, Reed-Solomon codes

Data Access Control:

Slotted CSMA: Utilizes infrastructure-sourced data status

bits embedded in both voice and data
transmissions.

VOICE CODER (ASTRO MODE)

Model I

Model III

Model II

Model I:

Large PTT button

Angled On/Off volume knob

Orange Emergency button

Illuminated 16 position, top
mounted rotary knob

2 position concentric switch

3 position toggle switch

Programmable Monitor button

2 programmable side buttons

Transmit LED Indicator

Non-keypad/Non-display

Up to 48 Channels

Model II:

Same as XTS 3000 Model I features
plus the following:

255 Channels

Dial from prestored lists

Programmable softkeys for easy
access to radio functions

Backlit keypad
- 2 x 3 navigational keys

Large Display
- 4 lines and 12 characters
- Status icons including battery

and power indicator

Model III:

Same as XTS 3000 Model I features
plus the following:

255 Channels

Dial from prestored lists

Programmable softkeys for easy
access to radio functions

Backlit keypad
- 3 soft keys
- 2 x 3 navigational keys
- 4 x 3 DTMF

Large Display
- 4 lines and 12 characters
- Status icons including battery

and power indicator

Unlimited dialing from keypad

All models are available
in a Ruggedized version,
with either a Black or
“Public Safety Yellow”
housing.

High speed and embedded digital signalling (ASTRO)

VHF, UHF and 800 MHz Bands

capable

Enhanced encryption capability (optional):
16 Encryption keys
2 Encryption algorithms

Meets Mil Specs 810 C, D, E

Programmable switches/buttons

ASTRO Ready – analog only operation (optional)

Adaptive power control extends battery life

Multiple modes of operation in a single radio
(ASTRO digital clear and encrypted, Analog,
and SECURENET encrypted operation)

Project 25 capable on Conventional systems

Project 25 compliant interoperable voice
signalling features

Project 25 data capable on Conventional systems

Narrow and wide bandwidth digital receiver
(12.5, 25/30 kHz)

High quality, error corrected digital voice

FLASHport

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