TBR-280- 4 digital Transceiver instructions 1
Welcome to use TBR-280- 4 digital transceiver , before you use, please read this manual carefully, thank you! Catalogue 1. Introduction to the equipment ............................................................................................... 3 2. Equipment cognition.................................................................................................................. 5 3. Equipment application and power supply mode ............................................................... 5 4.
1. Introduction to the equipment The TBR-280-4 is an ultra-thin digital single-frequency repeater , which is mainly used for the formation of the on-site emergency mobile communication network, and is applicable to the field of emergency events, sports events, large-scale conferences, exhibitions and field operations. The safety of the wireless emergency communication at the time of the convoy.
emission) It has RJ45 network interface, supports IP networking, and realizes cross-area communication and command and dispatch. 1.1 major function Relay function: The calling distance of the two digital terminals can be expanded to the original double, and the digital terminal is not affected, and the terminal is always operated in a single-frequency through state. Identify Features: Automatic identification terminal, illegal users prohibit forwarding.
2. Equipment cognition （1） ：DC power switch （2） ：OLED display screen ： right button（6） ：down button （3） ： left button（4） ： up button（5） （7） ：DC power interface， （8） ：RJ45（9）：Write-frequency serial port（10） ：RF 3. Equipment application and power supply mode The device has three kinds of use methods: fixed installation, on-board and Mobile use condition, all of which are equipped with sucker antenna. According to the different methods of use, the power supply method is as follows: 3.
wall-hanging or plane-fixed manner, through a power adapter to connect 120V municipal power work. Mounting bracket The power adapter 3.2 On-board use The equipment is fixed in the car by mounting bracket, connected and operated through the power cord (optional parts) of the on-board cigarette lighter. Vehicle Power supply Cord 3.3 Mobile use condition For mobile use condition, power and work by connecting external high-performance batteries (options).
Polymer lithium battery 4. operation declaration Operational steps: 1) Properly connect the power supply and antenna according to the actual mode of use 2) Switch on, select the preset working frequency and transmit power (high / low) values through the top, bottom, left, and right buttons. This equipment can preset 16 frequency points. The intercom pass-through frequency must be consistent with the frequency selected for forwarding by this relay station. 5.
Storage temperature -40℃～+85℃ Weight ≤ 2kg (battery free) Size 170mm （ wide ） *40mm （ tall ） *190mm （deep） Receiver Sensitivity ≤-119dBm@5% BER Adjacent channel ≥60dB @ 12.5kHz selectivity Spurious response rejection ≥70dB Block ≥90dB Co channel rejection ≥-12dB Conducted spurious emission ≤-57dBm (without launching, 9kHz~1GHz) ≤-47dBm (without launching, 1GHz~12.75GHz) Transmitter RF power Low: 5W, High: 20W Emission ≤-36dBm ( 9kHz~1GHz) Adjacent channel power ≤-60dB（±12.
–During transmissions, your radio generates RF energy that can possibly cause interference with other devices or systems. To avoid such interference, turn off the radio in areas where signs are posted to do so. DO NOT operate the transmitter in areas that are sensitive to electromagnetic radiation such as hospitals, aircraft, and blasting sites. This device complies with part 15 of the FCC Rules.
