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    ARROTOP – Kirisun TM840 Digital Mobile Radio

    ARROTOP – Kirisun TM840 Digital Mobile Radio

    Easy to Use

    TM 840 with compact size is flexible to install in the vehiclewhen space is limited.FM540 provides a large 42x20mm dotmatrix and 4-line display, which allows the drivers to seeimportant information at a glance even under sunlight;3 programmable buttons can be programmed with manyfunctions, providing one touch operation including power levelswitch, emergency, scan, and so on.

    Reliable Design

    It is designed compliant with MIL-810C/D/E/F, ensuringoutstanding performance even under harsh environments.

    Higher Spectrum Efficiency

    Benefiting from 6.25K FDMA technology, creates twooffset 6.25 kHz channels in a 12.5 kHz spacing, increasingspectrum efficiency and reducing cost on adding frequenciesto support applications.

    Superior Audio Quality

    By application of FEC technology, TM840 effectively rejectsnoise, providing superior voice clarity in noisy environments orat the edge of the coverage area.

    Secured Communication

    Information privacy is important to your business.Communication is easily eavesdropped by unwanted listenersoutside the working team when you are using the analog radio.Kirisun T840 series with 32-bits encryption technology canprovide more than 4 billion customizable codes, which meansthere is scarce chance that other users can monitor yourcommunication.

    Easy Migration

    The radio can provide analog mode, digital mode and mixedmode in channel configuration. Additionally, it supportsand DTMF encode and decode in analog mode, thus it meansyou can flexibly choose to migrate at your own pace.

    Versatile Voice Call & Data Services

    Using digital signaling, TM840 provides various voicetypes, including private call, group call, all call and emergencycall as well as remote control call and data service.

    Techincal Data:


    Frequency Range: 136-174MHz, 450-520MHz

    Channel Capacity: 256

    Channel Spacing: 12.5KHz(Analog), 6.25KHz(Digital)

    Normal Operating Voltage: 13.8V

    Operating Temperature: 25℃~ +55℃

    Storage Temperature: -40℃~+85℃

    ESD IEC 61000: 4- 2

    Dimension: 150mmx131mmx43mm

    Weight: 1310g


    Power Output: 40w/25W

    Frequency Stability: ±2.5 ppm

    Frequency Modulation: 11KφF3E (Analog), 4FSK(Digital)

    Antenna Impedance: 50Ω

    Modulation Limiting: ±2.5kHz @12.5KHz

    Radiated Spurious Emission: -36dBm@< 1GHz, -30dBm@> 1GHz

    Adjacent Channel Power: 60dB@12.5KHz, 50dB@6.25KHz

    FM Noise: 40dB@12.5KHz

    Modulation Distortion: < 3%

    Audio Response: +1dB, -3dB


    Frequency Stability: ±2.5 ppm

    Reference Sensitivity: 0.25μV@12.5KHz, 0.22μV@6.25KHz

    Adjacent Channel Selectivity: -60dB@12.5KHz, -50dB@6.25KHz

    Intermodulation: 65dB

    Spurious Response Rejection: 70dB

    Rated Audio Output: 4W@16Ω

    Hum and Noise: 40dB@12.5KHz

    Rated Audio Distortion: ≤5%

    Blocking: 84dB

    Conducted Spurious Emission: -57dBm<1GHz, -47dBm@>1GHz

    Audio Response: +1dB, -3dB

    Manufacturer name ArroTop

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