This portable power meter, based on the ARW22347 logarithmic detector chip, operates within a bandwidth of 0.1-7.1GHz and a dynamic range of -55 to -5 dBm, enabling accurate power measurements across the full frequency range. It features a USB Type-C power supply (5V input) and an SMA-KE connector (male external thread, female internal contact). External attenuation or gain compensation can be quickly configured via shortcut keys to expand the measurement range. Equipped with a 24-bit Σ-Δ ADC and a precision voltage reference, the device ensures stable and reliable readings. Frequency Range: 0.1-7.1GHz Dynamic Range: -55 to -5 dBm Calibration Frequencies: 100Mhz/700Mhz, 1.8Ghz /2.6Ghz, 3.5Ghz/4.2Ghz, 4.9Ghz/5.5Ghz, 6.0Ghz/6.4Ghz, 6.4Ghz/7.1Ghz<br><br>Power Supply: USB Type-C (5V, 0.1A) Interface: SMA (male external thread, female internal contact) Max. Input Voltage: 5.5V Max. Input Power: 5 dBm Operating Instructions Power On: Upon power-up, the device displays power values in dBm and Watts simultaneously, along with the current frequency setting. Enter Compensation Mode: Long- the first button (closest to the USB port) to access the Attenuation/Amplifier (ATT/AMP) compensation interface. Compensation Settings: Button 1 (Left): Move cursor left. Button 2: Move cursor right. Button 3: Increase value (+). Button 4: Decrease value (-). AMP: External amplifier compensation (rarely used). ATT: External attenuator compensation (commonly used). Set Compensation Value: After selecting AMP/ATT, move the cursor to the right to adjust the compensation value. Save and Exit: Long- Button 1 to save settings and exit the compensation interface. A "*" symbol appear in the lower-right corner of the screen when compensation is active. Note: The screen color is random, you cannot select a specific color, and it does not affect the use. Color: As Shown