Q1) Frequency counter in SW102 Meter show frequency less than it's actual?
A1)  Please adjust the Time Base in Menu 3

Q2) How to change the connector SO239 in SW102 Meter to N type ?
A2) Please add a PL259 to N female RF ADAPTOR (Item Code: S052)

Q3) Sometimes has dark screen, need to power on and off again
A3) The flat cable maybe loose

Q4) Has sound when shake the device
A4) Screw inside maybe loose

Q5) No menu 7
A5) SW102 meter in V3.7, there is no menu 7

Q6) What is the different between New and Old version of SW-102 SWR Meter ?
A6) New Version of SW102 can check the Power Output more accurate and device can adjust the Power Watt mode automatically

Q7) Power Watt below 0.6W , frequency counter result is not correct in SW102 Meter
A7) For version below 4.3V, the Measurable power range: 1 - 120W(+-0.5%)

Q8) Why the result is not same every time
A8) Here is the correct using method of the SW102 SWR Power Meter.
1) When testing, the Antenna must be in vertical
2) There must not have object, metal  reflecting
If you want the result in same, then you should use dummy load for testing

Q9) Can SW102 measure DMR radio?
A9) SW102 is not for DMR Digital Radio, but SW102D can measure Digital Radio

Q10) Why SWR result is different between SWR Meter and Antenna Analayzer
A10) The SWR Meter is an inline device that relies on radio or external signal sources to input radio frequency, and then measures the ratio of forward power to reflected power in real time.
The Antenna Analyzer, on the other hand, comes with its own low-power frequency sweep signal source and measures parameters such as SWR, complex impedance, and reflection loss at multiple frequencies at once. Since the Analyzer is usually tested on the bench, it does not necessarily reflect the state of the transmission line in actual operation