UHF Two Way Radio Duplexer Repeater (TC851)

TC-851 is globally the only mini-size duplex and single-mode antenna units which consists of duplexer, receiver, transmitter, CPU controller ect. Aluminium diecasting outer cover of vehicular was adopted. It can be used both in cars and in a fixed place, which is suitable for emergency situation. Full duplex communication can be achieved between two duplexers and single set can be used as repeater also. It can be increase the communication distance, the same time it has many advantages such as easy to operate and convenient to use.

General Specification

Frequency Range 400-470 MHz Frequency Stability ≥ 2.5 PPM

Frequency Spacing 10MHz Channel Spacing 25kHz

Duplex Band Width 1MHz Weight Approx 3kg

Current Standby current 0.3A Rx current 0.8A Tx current 3.0A Modulation Type FM 16F3

Operating Voltage 12-14V

Specification of Duplexer

Frequency Range (MHz) RX: 453.5---456.5MHz TX: 463.5---466.5MHz Transmitting-Receiving End Isolation (dB) ≥ 60dB

Frequency Spacing (MHz) 10MHz Max VSWR 1.5

Max Output Power (W) 10W Operating Temperature Range -30-----+60

Receiving End Insertion loss (dB) ≤ 2dB Frequency Stability Approx 2.5ppm

Transmitting End Insertion loss (dB) <1.5dB Matched Impedance 50Ω

Receiver

Simplex Sensitivity ≥ 0.3UV(12dB SINAD) Intermodulation Rejection -75dB

Duplex Sensitivity <3dB Residual Noise -45dB

Squelch Sensitivity ≥ 0.2UV DEMP FO 6± 3dB

Selectivity -70dB Audio Output Power 4.0W

Spurious Radiation -75dB Audio Distortion <5

Working Mode receiving mode

Transmitter

Output Power 5-10W Audio Distortion <5%

Spurious Radiation ≤ 80dB Max Modulation 5kHz

Residual Modulation -45dB Pre-emphasis Frequencies 6± 3dB

Working Mode Transmitting Mode

CPU Controller

Receiving-Transmitting Frequency Setting Automatic Repeater Setting MIC and PTT control

PC Programming CTCSS and DCS

Microphone Selectable accessory) PC Programming cable ( Selectable accessory)

Software by free