Ebyte EA01-SG User Manual page 25

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CHAPTER VI: HARDWARE DESIGN
It Is Recommended To Use Dc Voltage Supply To Supply The Module, The Power Ripple Coefficient Is As Small As Possible, The
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Module Should Be Reliably Grounded;
Please Note The Correct Connection Of The Positive And Negative Poles Of The Power Supply, If The Reverse Connection May
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Cause Permanent Damage To The Module;
Please Check The Power Supply To Ensure That The Module Damage Exceeds The Maximum Voltage;
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Lease Check The Stability Of The Power Supply, The Voltage Can Not Fluctuate Greatly Frequently;
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When Designing The Power Supply Circuit For The Module, It Is Often Recommended To Retain More Than 30% Surplus, And The
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Whole Machine Is Conducive To Long-Term And Stable Work;
Module Should Be As Far As Possible Away From The Power Supply, Transformer, High-Frequency Wiring And Other Large
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Electromagnetic Interference Part;
High Frequency Digital Wiring, High Frequency Analog Wiring, Power Wiring Must Avoid Below The Module, If It Is Really
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Necessary To Pass Through Below The Module Bottom, Assuming That The Module Is Welded In Top Layer, In The Top Layer
Copper Contact Part Of The Module (All Copper And Good Grounding), Must Be Close To The Digital Part Of The Module And
Wire In Bottom Layer;
Assuming That The Module Is Welded Or Placed In The Top Layer, It Is Also Wrong To Walk Randomly at The Bottom Layer Or Other
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Layers, Which Will Affect The Stray Dispersion And Receiving Sensitivity Of The Module To Different Degrees;
Assuming That Devices With Large Electromagnetic Interference Around The Module Will Also Greatly Affect The Performance Of
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The Module, It Is Recommended To Keep The Distance From The Module According To The Interference Strength, And The
Appropriate Isolation And Shielding Can Be Done；
Suppose a Large Em Walk Around The Module
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High Frequency Digital, High Frequency Simulation, Power Wiring) Will Also Greatly Affect The Performance Of The Module, According
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To The Strength Of The Interference Is Recommended To Appropriately Stay Away From The Module, If The Situation Allows You Can
Do Appropriate Isolation And Shielding;
The Antenna Installation Structure Has a Great Impact On The Performance Of The Module, So Make Sure That The Antenna Is Exposed,
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Preferably Vertical Upward.When The Module Is Installed Inside The Enclosure, Quality Antenna Extension Can Extend The Antenna To The
Outside Of The Enclosure;
The Antenna Must Not Be Installed Inside The Metal Shell, Which Greatly Weakens The Transmission Distance.
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CHAPTER Ⅶ : FAQ
TRANSMISSION DISTANCE IS NOT IDEAL
7.1
When There Is a Linear Communication Obstacle, The Communication Distance Will attenuate Accordingly;
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Temperature, Humidity, The Same Frequency Interference, Will Lead To The Communication Packet Loss REAT Increase;
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The Ground Absorption, Reflection Of Radio Waves, Close To The Ground Test Effect Is Poor;
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Sea Water Has a Very Strong Radio Wave Absorption Ability, So The Seaside Test Effect Is Poor;
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There Are Metal Objects Near The Antenna, Or Placed In The Metal Shell, The Signal attenuation Will Be Very Serious;
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The Power Register Setting Is Wrong, And The Air REAT Setting Is Too High;
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at Room Temperature, The Power Supply Low Voltage Is Below The Recommended Value, The Lower The Voltage, The Lower
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The Power;
The Antenna Is Poor To Match The Module Or The Quality Of The Antenna Itself.
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MODULE IS EASY TO DAMAGE
7.2
Please Check The Power Supply To Ensure That The Module Damage Exceeds The Maximum Voltage;
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Please Check The Stability Of The Power Supply, The Voltage Should Not Fluctuate Greatly And Frequently;
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Please Ensure Anti-Static Operation And Electrostatic Sensitivity Of High-Frequency Devices;
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Please Ensure That The Humidity Is Not Too High During Installation, And Some Of The Components ;
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It Is Not Recommended If There Is No Special Requirement.
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EA01-SG User Manual
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