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Company news about 1 take 4 RF optical module MU

1 take 4 RF optical module MU

2025-07-25

Shenzhen ATNJ Communication Technology Co., Ltd., founded in 2010, is a company that integrates research and development, manufacturing, sales, and technical services. It is a professional radio frequency (RF) product manufacturer with mature experience. The main products include custom-developed SDR digital core boards, LTE/NR (micro, medium, high) power series analog/digital optical fiber digital selective band repeaters & DAS systems, wireless frequency modules, passive modules, public and private network systems, and base station technology solutions. Additionally, the company undertakes various RF and wireless repeater operation and maintenance services and projects, multi-band, multi-sub-band, multi-MIMO DAS systems, remote network management center OAM, and supplies for indoor and outdoor signal coverage projects.

 

Here we highlight the key service that guarantees our unwavering commitment :

①. Active DAS: Off-air repeater, frequency shift repeater, fiber optic repeater, and inline booster.

②. In cabinet active RF module&parts: LNA, PA, optic transceiver, channel/band selector, frequency shifter, bias tee, PSU. 

③. In cabinet passive RF module&parts: multiplexer, filter, channel combiner, semi-rigid/flexible jumper.

④. Passive DAS: POI, multi-band combiner, hybrid combiner, splitter, coupler, tapper, cable assembly, antenna.

⑤. SDR (Software Defined Radio) Core Board Custom Development and Solutions.

⑥. Phased array radar technology and software algorithm.

⑦. ECM system.

⑧. Critical communications solution. 

⑨.  Public/private network BTS solution.

latest company news about 1 take 4 RF optical module MU  0


  1. Range

    This product is designed for fiber optic repeaters in mobile communication systems, facilitating the photoelectric conversion and transmission of uplink and downlink signals for the repeaters.

  2. RF Technical Specifications

    Table 1. RF Index

    Specifications

    Index

    Notes

    Frequency band

    800-2700MHz

    The primary test frequency bands cover the 2G/3G/4G spectrums currently deployed by China Mobile, China Unicom, and China Telecom

    Transmit optical wavelength

    1550±20nm

     

    Receive optical wavelength

    1310±20nm

     

    Cascade Stages

    1 take 4

     

    Optical Output Power

    -3±1dBm

    Optical Port Power Measurement Using Optical Power Meter

     

    4dBm±1dBm

    Laser Emission Power Verification via GUI Software

    ‌Transmit Loss of Light

    (TXLOL)

    ≤-3dBm

    IF (Laser Output Power ≤ -3dBm ±0.2dB) THEN ASSERT "TX_OPD_ALARM"ELSE MAINTAIN "NORMAL_OPERATION_STATE"

    ‌Receive Loss of Signal

     (RXLOS)

    ≤-10dBm

     

    Link gain

    UL:0±2.5dB

    Direct or single-drop connection

     

    DL:0±2.5dB

     

    Automatic Gain Compensation (AGC) Function

    Insertion Loss of 1x4 Headend Module Connection3dB

    Asymmetric Gain Compensation with Variation Rate of±2dB

    Flatness In Band

    824~835MHz,869~880MHz,890~915MHz,935~960MHz,1710~1785MHz,1805~1880MHz,1880~1920MHz,1920~1980MHz,2110~2170MHz,2320~2370MHz≤1dB

    2515~2675MHz≤2dB

     

    VSWR

    ≤1.5

     

    Second Harmonic Component

    890MHz input -13dBm,1780MHz output≤-80dBm

     

    Intermodulation

    UL:≤-55dBc,(-8dBm input/2CH)Total input powe-5dBm,per carrier is 8dBm

    Test 1:Near/Far End 1+1 Testing @ 600kHz Spacing; (Final results subject to your company's test data)

     

    DL:≤-60dBc(-3dBm input/2CH) Total input powe0dBm,per carrier is 3dBm

     

    Noise floor

    UL

    ≤-130dBm/Hz

    LINK GAIN=0dB,‌Test Configuration: Cascaded 1:1 Connection (AGC Compensation Enabled)(Final results subject to your company's test data)

     

    DL

    ≤-125dBm/Hz

     

    RF isolation

    ≥50dB

     

    Delay

    ≤100ns

     

    Gain Adjustment Range

    ≥15dB

    MU Uplink

    Gain Step Size

    1dB

    MU Uplink

    Gain Setting Error

    0~15 error≤1dB;

    MU Uplink

    Working temperature

    -20~70℃

     

    Power supply

    DC+9V~+12V,Power consumption less than 4W

     

    Monitoring Interface

    Equipped with a DB9 female connector providing two RS485 interface; Communication baud rate: 9600 bps

     

    WDM

    Built-in

     

    +8618813582037
    Quick Contact

    Address

    Floor 12, Building A, Rd Jiangshi, Quanju High-Tech Industry Park, Guangming District, Shenzhen, Guangdong Province, China

    Tel

    00-86-18813582037

    +8618813582037
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