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MLE-02 Bidirectional Amplifier User Manual...
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Notice This user manual is only for professionals. To avoid electric shock, non-professionals should not operate any maintenance including installation and troubleshooting. All installation and maintenance should be carried out after professionals read the user manual and in strict accordance with the instructions.
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MLE-02 USER MANUAL MENU Notice............................1 Foreword..........................3 Introduction.........................3 Feature......................... 3 Technical Support..............错误!未定义书签。 Description..........................3 Power Supply......................3 Forward Path......................4 Reversed Path......................4 Control Forward Output Level................. 5 Accessories........................6 Installation.......................... 6 Preparation........................6 Installation........................7 Check Forward System....................7 Check Reversed System..................... 8 Finish installation......................8...
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MLE-02 contains RF amplifier hybrid and power supply. The water-proof aluminum casting housing is suitable for outdoor operation. Various components and options can meet many different requirements. 2.1 Power Supply The power supply of MLE-02 is SMPS (Switching Mode Power Supply), which is fixed in the...
The output voltage is +24V. The DC output current can reach 1.5A. 2.2 Forward Path MLE-02 can be divided into forward path and reversed path. The forward input contains cable equalizer (simulator) and fixed attenuator. The EQ range of the cable equalizer (simulator) is 3~21dB/0~12dB, 1.5dB/step.
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MLE-02 USER MANUAL The reversed bandwidth of MBC-02 begins from 5MHz, and various ended frequency (42/65/85/204MHz) are available for choice. The input attenuators, low-pass filters, reversed amplifier module and equalizers are pluggable, which is convenient to change. There are fixed attenuators at output port and reversed amplify gain is adjusted by output attenuator RATT (Gain).
MLE-02 USER MANUAL 2.5 Accessories If without any special requirement, we will attach the defaulted directional accessories, set the fixed attenuation as 0dB and set the forward equalization between stages as 14dB. To ensure the basic function, user must plug suitable fixed attenuators to adjust the signal equalization and attenuation.
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MLE-02 USER MANUAL Note: DO NOT remove the 20A plug-in at Fuse position in any case. It is used for over-current protection. 3.2 Installation The amplifier can be placed on horizontally or hanged. For horizontal installation, generally it can be placed in the cabinet. For outdoor installation, it can be hanged on something like telephone pole.
MLE-02 USER MANUAL Adjust output level: the forward fixed attenuator ATT (P2) can be adjusted Adjust AGC 5.1 Before setting AGC, user should change ATT (P2) attenuator to adjust the output level of P2 port in MGC mode. ATT (P2) must be more than 3dB sot that it can work properly in AGC mode.
MLE-02 USER MANUAL Appendix A Specification Item Forward Reversed Remark Frequency(MHz) 54/105/258~1002 5~42/87/204 According to the split frequency Flatness(dB) ±0.6 ±0.5 ≥16(FH~750MHz) Return Loss ≥16 ≥14(751~1002MHz) Nominal Gain 28~38/41 0/20 Min Full Gain ≥42 ≥22 Forward 1.5dB step, reversed Equalization/Analog 3~21/0~12...
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