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BJ-851 Repeater

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BJ-851 Repeater

■ HOT! High Power Output BJ-851 for Walkie Talkie
■ Main Features of Repeater BJ-851
■ CPU Controller
■ Receiving-Transmitting Frequency Setting
■ Automatic Repeater Setting
■ MIC and PTT control
■ PC Programming
■ Programming software only can change CTCSS and DCS.
General
Frequency Range:400-480 MHZ  ( Frequency spacing :10MHz) 
Frequency Spacing:10MHZ
Duplex Band Width:1MHZ
Modulation Type:FM 16F3
Operating Voltage:12-14V
Current:standby current  :  0.3A       Rx current : 0.8A      Tx current :3.0A
Frequency Stability:≥2.5 PPM
Channel Spacing:25KHZ
Weight:Approx 2kg
Specification of Duplexer
Frequency Range (MHZ):TX:453.5---456.5MHZ   RX:463.5---466.5MHZ
Frequency Spacing (MHZ):10MHZ
Max Output Power (W):10W
Receiving End Insertion loss (dB):≤2dB
Transmitting End Insertion loss (dB):<1.5dB
Transmitting-Receiving End Isolation (dB) ≥65dB
Max VSWR:1.5
Operating Temperature Range:-30-----+60°C
Frequency Stability:Approx 2.5ppm/°C
Matched Impedance:50Ω
Receiver
Simplex Sensitivity:≥0.3uv(12dB SINAD)
Duplex Sensitivity:<3dB
Squelch Sensitivity≥0.2uv
Selectivity:-70dB
Spurious Radiation:-75dB
Intermodulation Rejection:-75dB
Residual Noise:-45dB
DEMP FO:6±3dB
Audio Output Power:4.0W
Audio Distortion:<5%
Working Mode:receiving mode
Transmitter
Output Power:5-10W
Spurious Radiation:≤80dB
Residual Modulation:-45dB
Audio Distortion:<5%
Max Modulation:5KHZ
Pre-emphasis Frequencies:6±3dB
Working Mode:Transmitting Mode


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