This transmitter module uses SAW oscillator, with high frequency stability and small temperature drift. Even while touching the antenna with hand, there is no frequency offset. Its frequency error is very small, typically less than +/- 75kHz, which is far less than +/-500kHz frequency error of LC oscillator. The transmitter module size is small. It’s operating voltage range is DC 3V-9V. So it has high transmit power and low power consumption. All contribute to stable performance.
It adopts SMD technology, and the most advanced SAW resonator (SAW) components for frequency stabilization. The circuit board (PCB) is made of material with the smallest dielectric loss. All the prodcuts has passed strict QC inspection before delivery.