Detailed Product Description

Two Way Radio,Handheld Transceiver,Interphone,Walkie Talkie

1. AT915 Analog system digital Signaling Non-central trunking transceiver.

Basic technic parameter

working frequency coverage: 915.0125~916.9875MHZ

coverage spacing: 12.5KHZ

Frequency stability: 1PPM

Working temperature: -20~+60

Voltage: 3.3V~4.2V

Transmition

Tx power: ≤2.5W(3.7V)

Adjacent Channel power: ≤2.5uW

Spurious power: ≤2.5uW

ModulationMAX: ≤2.5KC

Modulation Distortion: ≤5%

Noise Ratio ≥35dB

Receiver

Receiving Sensitivity: ≤0.25uV

Adjacent Channel selectivity: ≥60dB

Intermodulation: ≥60dB

Spurious Suppression: ≥60dB

Receive Distortion: ≤5%

Noise: ≥40dB

Rx bandwidth: ≥4KHz

Audio power output: ≥0.5W

2.The main technic parameter of AT900 TDMA digital transceiver

Basic technic index

Working freqency coverage: 915.0125~916.9875MHZ

Frequency : 12.5KHz

Frequency stability: 1PPM

Working temperature coverage: -20~+60

Voltage: 3.3V~4.2V

Modulation rate: 9.6kbps

Working Time Slot: 2

Voice rate: 2.4kbps

Transmition

Tx power≤2.5W3.7V

Adjacent Channel powerat the time of startup ≤55dB

Power achieve 90%≤60 dB

Spurious power: ≤-60dB

Receiver     

Receiving Sensitivity: ≤-117dBm

Receive Distortion: ≤5%

Audio power output ≥0.5W