MPT1327

General Information

MPT1327 is a Signaling Standard for Trunked Private Land Line Mobile Radio Systems, issued by the British Radio communication Agency.

Usage:

§ Mobile voice and data communication.

Mode Details

 

Item

Value

Standard

Modulation

FFSK

 

Number of channels

1 + 1024

 

Bandwidth (Hz)

12500

 

Symbol rate (Bd)

1200

 

Coding

CRC

Demodulator Settings

Demodulator

(G)MSK

 

Type

MSK

 

Symbol rate (Bd)

1200

 

SR tolerance (Bd)

5

 

Min. burst length (s)

0.010

 

Max. burst length (s)

60.000

 

Min. pause length (s)

0.010

Features

Demodulation

yes

 

Recognition

yes

 

Decoding

yes

 

Automatic Polarity Adjustment

no

 

Combination with other modems (modem list)

yes

Restriction

 

This decoder processes data on the TSC (Trunking System Controller) level only, not on the RU (Radio Unit) level.

 

Tuning

The tuning frequency is 1500 Hz above the low end of the signal’s frequency range

Table 17: MPT1327

Figure 15: MPT1327 Spectrogram