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The Universal Train Set

Introduction

The general wireless dispatching cab radio is fixed in the cab for the driver, it adopts the GPS receiver and is compatible with all the operating mode of the B and C SYS cab radio. It could realize the simplex communication among the station watcher, other drivers and

the chief conductor at the alien frequencies, furthermore, it could communicate with the controller via the station radio for the connection among the controller, the station, other train and the chief conductor. It provide the record, running numbers, the train tail wind pressure data and the GPS data interfaces to collect and output the GPS original data.

Primary technical characteristics

1.communication mode:

driver——dispatcher alien frequencies and duplex/common frequency and simplex

driver——station alien frequencies and simplex/common frequency and simplex

driver——driver alien frequencies and simplex/common frequency and simplex

2. modulation mode: 16F3E

3. Channel spacing：25ＫHz

4．Antenna impedance: 50Ω

5. transmitter:

carrier output power: 5W，10W

modulation sensitivity: －48±4dBm

modulation limitation: ≤5KHz

carrier frequency tolerance: ≤±5ppm

residual frequency modulation: ≤－40dB(1KHz，60％ is modulated)

audio frequency distortion: ≤5％(1KHz，60％is modulated)

stray radio frequency component: ≤5μW

6. receiver(simplex/duplex):

reference sensitivity: ≤0.6μV（12dB SINAD）

carrier quieting sensitivity: 0.6～5μV（tunable）restore factory setting is 1μV

intermodulating immunity: ≥65dB

adjacent channels selection: ≥65dB

audio output power: ≥5W/8Ω(loudspeaker output)

radio of the signal power to the residual power: ≤－40dB (1KHz， 60％ is modulated)

audio frequency distortion: ≤ 5％ (1KHz，60％ is modulated)

duplex sensitivity: 3 dB lower than the simplex sensitivity is not allowed.

Introduction

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