Product Description: Using MAX2871, AD9834, main control GD32F427, 28-inch (240*320) LCD screen supports USB virtual serial port (driver installation required) communication. Frequency Point Description: You can directly enter the frequency point mode for setting by pressing the shortcut key, or you can enter the frequency point mode through the button on the screen. Frequency control: You need to click the "Set" button, enter the desired frequency point, and turn on the "switch" to achieve frequency point output; Power control: You need to enter the device interface for control, select the gear in the "Power" drop-down box to control the power output size. Features: (1) Can generate sine waves with frequencies from 9KHz to 6200MHz CH1: Generates sine waves with frequencies from 24MHz to 6200MHz CH2: Generates sine waves with frequencies from 9KHz to 6200MHz (2) Dual-channel signal output: CH2: Supports 11-level amplitude adjustment (-25dbm to -15dbm) (3) Supports sweep frequency and dot frequency working modes (4) Built-in USB serial port communication (5) Supports serial port control of frequency sweep and frequency point operations (6) Supports USB power supply Frequency Sweep Description: You can directly enter the frequency sweep mode for setting by pressing the shortcut key, or you can enter the frequency sweep mode through the button on the screen. Frequency sweep modes include single sweep and cyclic sweep (sweep once or multiple times). This function requires setting the product's and end frequencies, as well as the time and step size. Power control: Access the device interface and select the power level in the "Power" drop-down box to control the power output. Color:Black Material:Metal Package Contents: 1 * Spectrum Analyzer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.