Sony WRT830A Handheld RF Wireless Transmitter
The WRT830A is a wireless microphone for an 800MHz band UHF synthesized wireless microphone system to be used for broadcast or movie production purposes. The microphones/transmitters and tuners are classified by frequency band. A 14MHz frequency band (or two consecutive-numbered TV channels) is assigned to each microphone/transmitter and tuner model.
High quality sound recording with low handling noise.
The unit employs a back-electret condenser capsule, which allows recording of vocals with superb sound quality. The anti-vibration structure of the capsule also reduces the handling noise drastically.
Easy selection of 102 channels.
With it’s sophisticated phase lock loop (PLL) circuit, the unit can operate on any one of any 102 carrier frequencies in a 14 MHz frequency band for each model, selected by a simple button operation.
Operation powered by widely available batteries.
The buil-in DC-DC converter allows stable operation, for up to eight hours continuously, with just two L40 (LR6) alkaline batteries.
CPU and LCD for co-ordinated operation control.
The built-in CPU controls the unit operation including the PLL circuit function. The LCD shows the current channel number, the residual battery power, the input attenuation setting, the AF input level and the RF output.
Saved channel and input attenuation settings.
The unit stores the channel and input attenuation settings when it is turned off. The saved settings are retained even if the batteries are removed. Therefore, when using the unit next time, you need not make the same settings again.
Highly reliable electronic attenuator.
The built-in input level attenuator is adjustable in the range of 0dB to 21dB in 3dB steps. It reduces signal distortion when an excessively strong input signal is received.
RF carrier with tone signal.
The unit transmits the RF carrier accompanied by a tone signal, enabling the tuner with a tone squelch circuit to take out only the target audio signal received.
Wide dynamic range and low noise.
The compander (compressor/expander) system enables transmission over a wide dynamic range with minimum noise.