The factory has just upgrade the software, so the interface of the machine is not the same as the images showed. It's only for reference. If you need more info or instruction, please feel free to contact me by message.

Frequency range: 136-173MHz 400-470MHz
Spectrum dynamic range: -127dBm --- 0dBm
Resolution: 1dB
Tracking source output power: ≈ -38 dBm
Interface: BNC
Power: need external DC 8 --- 12V
Adjust the duplexer steps photographed after contact the store to obtain
 
 
The upper right corner of the spectrum shows the spectrum mode, the display tracking for the spectrum plus tracking mode
 
The first line shows the center frequency center frequency power
The second line captures the strongest or weakest frequency, or the specified frequency and power (shows the capture of the strongest signal in capture mode, the acquisition of the weakest signal in capture plus capture mode, Adjust the diplexer steps ") frequency and power)
    
 The third line of the frequency range (center frequency plus or minus) frequency step
 
F1: cursor movement center frequency, frequency range, step cycle selection (long press to switch between spectrum and tracking mode)
F2: Backspace
The cursor points to the center frequency: Numeric keys direct input or up and down keys to step to adjust the frequency
                                 F3 F4 Adjust the frequency in 1M
The cursor points to the frequency range: the value is centered on the center frequency plus or minus the range, for example: 0128000 as the center plus or minus 12.8 M
                                   That is 25.6M range
                                  Enter the number keys directly up and down keys to increase or decrease the range,
The cursor points to the step: the number keys directly input or the up and down keys to adjust the step change in 5K scan range will be slightly changed to fit the size of the grid