The manual provides operating instructions for Sony's WRT-810A and WRT-820A UHF synthesized wireless microphone transmitters, intended for broadcast or movie production. It covers features such as selectable channels, input attenuation, battery operation, and compatibility with Sony lavalier microphones.
Key sections describe safety precautions, battery installation, channel and attenuation adjustments, RF power selection, and detailed specifications including frequency bands, temperature limits, and power output levels. A frequency table lists the TV‑channel‑based carrier frequencies for each model.
| Frequency band | 800 MHz UHF synthesized |
|---|---|
| RF power output levels | 2.5 mW and 10 mW |
| Operating temperature range | 0 °C to 50 °C |
| Input attenuation range | 0 to 21 dB in 3 dB steps |
They are designed for ambient temperatures from 0 °C to 50 °C.
Two levels are available: 2.5 mW for ranges up to about 30 m and 10 mW for longer distances.