• Sound Devices Introduces New Long-Range Modulation, Q-Meter for A10/A20 Wireless System


    Sound Devices has introduced a new modulation type for their wireless products as part of version 5.00 firmware for the A10-TX, A10-RX, A20-Mini, and companion app A20-Remote. This new long-range modulation is digital and reportedly offers the longest transmission distance of any wireless system on the market (comparing systems with same transmit power, same antennas, and same transmission frequency). Both line-of-sight and heavy multipath transmission see improvements over the original “standard” modulation. Long-range modulation features the same audio quality (10 Hz – 20 kHz) as the standard modulation with "little" additional latency.

    “We’ve been very pleased with the performance of the new long-range modulation in our field testing,” said Gary Trenda, RF Applications Engineer at Sound Devices. “We’re seeing significant improvements to audio range in all RF environments.”

    The new firmware also introduces a quality meter or Q-meter. Previously, the A10/A20 system only offered an RSSI meter, which only displays information on incoming signal strength. In an RF-heavy environment, it is possible to have a strong incoming signal but still experience dropouts due to RF interference. The new Q-meter displays the difference between the signal from the transmitter and any interference. When a frequency without little to no interference is selected, the Q-meter will display five bars. Professionals can use the Q-meter to better choose frequencies which will give the best performance and range.

    Other enhancements in version 5.00 include additional group control settings in A20-Remote, menu enhancements for A20-Remote and A10-RX, and more.
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