(1) Frequency output range: 23.5-6000Mhz. two modes: frequency and sweep frequency.(2) Minimum control accuracy: 0.001Mhz.(3) Amplitude control: -4dB -1dB +2dB +5dB.(4) supply mode: USB 5V supply.(5) Control mode.1. Adjust the frequency output by 5 on board.2. Serial control mode 1: onboard usb to serial chip, the computer can be directly controlled, without providing control software.3. serial control mode 2: through the board serial interface, controlled by other hardware devices. ( serial port control communication protocol)Material: PCBcolour: as shownPackage Contents:1 x RF signal source1 x USB cable1 x serial port cableOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.