MOBITEX-8000

General Information

Mobitex-8000 is a wireless packet switched data network found on 400/800 and 900 MHz around the world. The MOBITEX Operator Association (MOA) coordinates the specifications, the operator specific additions and further hard- and software development.

Usage:

Transfer of textual information over UHF

Mode Details

 

Item

Value

Standard

Modulation

GMSK

 

Number of tones

2

 

Bandwidth (Hz)

15000

 

Symbol rate (Bd)

8000

 

Coding

ECC: Hamming (12,8) CRC-16 (CCITT)

Demodulator Settings

Demodulator

FSK 2,3,4 discr.

 

Symbol rate (Bd)

8000

 

SR tolerance (Bd)

10

 

Modulation order

2

 

Shift (Hz)

4000

 

Shift Tolerance

100

Features

Demodulation

yes

 

Recognition

yes

 

Decoding

yes

 

Automatic Polarity Adjustment

no

 

Combination with other modems (modem list)

yes

Tuning

The tuning frequency is the center of the signal’s frequency range

Table 16: MOBITEX-8000

Figure 14: MOBITEX-8000 Spectrogram