Main functions: VSWR. Direct indication of power forward and reflection, without any calibration. Maximum measurable power range up to 120 watts. Low insertion loss (0.3 decibels or less) structure allows it to be permanently connected. Frequency counter Function Visible operation: frequency, power, SWR, FW, RW ** (type N) for measuring walkie-talkies ** Parameters Frequency testing range: 125-520 MHz Measurable power range: 1-120 W Test range vsw R: 1.00 ~ 19.9 Resistance: 50Ω Insertion loss: <0.15 dB (VHF), <0.25 dB (UHF) Temperature: 0 C ~ 60 C Auto power off: 1-9 minutes Interface: (input and output ) NJ interface Battery: 3.7 in 600 mAh lithium-ion battery 5 V charger (micro usb) Volume: w76 * w77 * d35 mm Weight: <220 grams (*** Does not work with digital radio ***) How to use? Power on / off: Press 2 seconds [Red button] to turn the power on and off; Connect the transceiver output to “TX” and the antenna or dummy load to “ANT”. The correct adapter / cable is required if the device has a different type of connector. (*** It is necessary to use a dummy load in order to avoid a burn and get an accurate result when testing power) With the function Date / Week / 1) adj RF forward% 2) adj RF award% 3) Adj. Base time counter frequency. 4) adj RF Power% 5) Adj lcd dim light 6) Adj. Power off time 7) Adj. Test mode [0 for manual Radio 1-10 W, 5 for mobile radio 10-100 W] Memory / save function: 1. Press the [Blue button] menu 2. Press F1 [Red button] [Select 1-6 Funtion] 3. Press the blue button [-], the yellow button [+] 4. Press the red button for 2 seconds 5. Press the blue button to save and exit Menu settings 1: Treble level “Forward”: [-99 to + 99] % 2: Treble Level “Reverse”: [-99 to + 99]% 3: Freq. Counter "Time base: [-99 to + 99]% 4: Fintune RF" power watt level ": [-99 to + 99]% 5: lcd DIM [LCD backlight time]: “0” on, “1-9” minutes 6: off: “0” on, “1-9” minutes Note: SW-102 is not for DMR the system

The machine and antenna in the picture are only shown and not included.