Features Hige Quality: The audio generator module is integrally formed with a glossy shell without burrs and smoothly installation. The generator shell is made of ABS material, which can resist oxidation and corrosion and increase the service life. Sub-tone Function: The RF signal generator increase the analog sub-tone digital sub-tone function, strong anti-interference ability, signal transmission is not interfered. Add analog consonant and digital consonant functions. Easy to Operate: The small size and light weight of the audio signal generator allows it to be operated with one hand, making it less fatiguing for the operator's wrist. Very high precision. Can test the actual reception sensitivity Note: Please note that the colors of the buttons will be sent randomly, and make sure you will not mind before ordering. The frequency is 7 digits, such as 439.6000MHZ will display 4396000KHZ. Signal strength ‑70‑‑132dBm is valid, other values are invalid. Audio modulation is about 800Hz, other values are invalid. Wide Application: The RF and audio generator applicable to FM commissioning. Widely used in aviation, wireless communication, automotive electronics, manufacturing and other fields. Specification: Item Type: Signal Generator Material: ABS Frequency: 0.5MHZ‑470MHZ Signal Strength: -70-132dBm Built-in 800Hz audio modulation The new model adds analog sub-tone digital sub-tone function. Use 8--12V DC power supply Package List: 1 x RF Signal Generator 1 x Bracket 1 x User Manual Package List 1 x RF Signal Generator 1 x Bracket 1 x User Manual