Abstract: Disclosed herein is a wireless transmitter system which provides a small, frequency agile wireless microphone transmitter allowing active performers to have a wireless transmitter system without the inconvenience of a large transmitter. The wireless receiver of the wireless transmitter system comprises a large backlit display, simple operation with auto-scan channel selection, and infrared set for syncing the wireless microphone transceiver and wireless receiver. The wireless transmitter system is simple and easy to set up and operate. The wireless transmitter system further ensures clear, interruption-free performance by utilizing a True RF Diversity design with a pilot tone-key and auto-mute function. This provides maximum operating distance along with eliminating any background noise when the wireless microphone transceiver is out of range or powered off.

Abstract: A microphone receiver system is used for recording an acoustical event in an event space. Wireless microphone captures the acoustical event and transmits the acoustical event as a first signal transmission. The microphone receiver receives the first signal transmission and sends the first signal transmission as a received signal from a first output port of the microphone receiver to an input port of the recording device as the received signal as a representation of the acoustical event. A mounting assembly for connecting the microphone receiver to the recording device, the mounting assembly including a pair of opposing upright portions extending from opposing sides of the microphone receiver, the recording device being held between the opposing upright portions.

Abstract: A microphone receiver system is used for recording an acoustical event in an event space. Wireless microphone captures the acoustical event and transmits the acoustical event as a first signal transmission. The microphone receiver receives the first signal transmission and sends the first signal transmission as a received signal from a first output port of the microphone receiver to an input port of the recording device as the received signal as a representation of the acoustical event. A mounting assembly for connecting the microphone receiver to the recording device, the mounting assembly including a pair of opposing upright portions extending from opposing sides of the microphone receiver, the recording device being held between the opposing upright portions.

Abstract: A diaphragm for a speaker includes two portions. The first portion is made of metallic material for producing a high frequency tone. The second portion is made of a non-metallic material for producing a low frequency tone. The first portion is joined at a first peripheral edge to a voice coil while a second peripheral edge is joined at a first peripheral edge of the second portion to form the diaphragm.

Abstract: A diaphragm for a speaker includes two portions. The first portion is made of metallic material for producing a high frequency tone. The second portion is made of a non-metallic material for producing a low frequency tone. The first portion is joined at a first peripheral edge to a voice coil while a second peripheral edge is joined at a first peripheral edge of the second portion to form the diaphragm.

Abstract: A frequency modulated (FM) transmitter for use in the 100 to 300 megacycle band is described having a low parts count topology. The disclosed topology requires the use of five tank circuits tuned to various frequency multiples of a crystal oscillator to achieve a twelve fold multiplication of the natural frequency of the crystal oscillator.