Features: This ADF4351 signal source development board has well designed circuit board layout. Wide-voltage: It is a phase-locked loop module with integrated key-operation, wide-range voltage-supply, and fine human-computer interaction interface. Multifunction: The module can realize the frequency output of 35MHz-4.4GHz, basic functions such as point frequency, frequency-sweep, frequency hopping. It can be controlled by the upper computer official software. All control-pins are leaded out for convenient operation. Three-wire serial-peripheral-interface bus lead to control pin and state locking pin, allowing all functions including point frequency-sweep and frequency hopping. Specifications: Material:ABS Size: Approx.3.8x3cm/1.49x1.18inch 2.2GHZ--4.4GHz sine-wave (fundamental) 35MHZ--2.2GHz squarewave (fundamental division) Output signal: output speeds, signal strength: + 5dBm (programmable) RF connector: SMA-female-head Control Interface: Three-wire Serial-Peripheral Interface Bus Reference Clock: 10.000MHZ (default), through the interface to an external-SMA Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x RF Signal Source