Sound Devices Releases the A20-RX with SpectraBand Technology
Brie Clayton July 20, 2022
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Sound Devices is shipping the A20-RX: a two channel, true diversity receiver with industry-exclusive SpectraBand technology. SpectraBand gives the A20-RX receiver and A20-Mini transmitter an unprecedented tuning range: 470 MHz 1525 MHz. The A20-RX also features high-discrimination front end filtering for better performance in noisy RF environments and Frequency AutoAssign for faster setup.
The receiver is compatible with both A20-Mini and A10-TX transmitters. Sound professionals with the previous model, A10-RX, can upgrade the hardware of their receivers to the A20-RX for $995 USD or for a reduced price of $750 if they purchased their A10-RX within the last 12 months or an A20-Mini since June 1st. The upgrade program lasts until the end of 2022.
As wireless spectrum becomes increasingly crowded, sound professionals need flexibility when it comes to tuning range. The A20-RX is the first receiver on the market that can tune not only in common UHF TV bands around 470 - 608 MHz, but far above that, said Gary Trenda, RF Applications Engineer at Sound Devices. We're excited to offer the A20-RX and an upgrade path for our A10-RX customers.
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SpectraBand eliminates the need for purchasing different wireless receivers dedicated to specific frequency bands. In the USA, the A20-RX can tune to the 600 MHz guard band (614-616 MHz), 600 MHz duplex gap (653-663 MHz), 900 MHz ISM Band (902-928MHz), 900 MHz STL Band (941.5-960 MHz), and, with the appropriate license, the 1.5 GHz AFTRCC band (1435-1525 MHz). This is in addition to the core USA UHF TV band from 470-608 MHz that's commonly available. Overall, this totals approximately 285 MHz of available spectrum. In the UK, the A20-RX can tune to the 800 MHz duplex gap (823-832 MHz), 800 MHz guard band (863-865 MHz), and, with a proper license, the DME and 1.5 GHz bands (961-1015 MHz, 1045-1075 MHz, 1105-1154 MHz, 1518-1525 MHz). This is in addition to the core UK UHF TV band from 470-702 MHz that's commonly available. Overall, this totals approximately 383 MHz.
A20-RX Family
The A20-RX is the second product in Sound Devices' first wireless product line. The first product, the A20-Mini transmitter, is receiving a free firmware upgrade to enable SpectraBand when used with the A20-RX. The A20-RX is also compatible with all tuning ranges of the full-size A10-TX and is SuperSlot compatible with an SL-2 SuperSlot Wireless Module and 8-Series mixer-recorder.
Two other notable features of the A20-RX are its front-end filtering and Frequency AutoAssign. While tracking filters are common in wireless receivers, the A20-RX uses superior low-loss, brick-wall SAW filters to deliver excellent performance in noisy RF environments. These built-in filters also provide excellent immunity from nearby IFB or camera hop transmitters without the need for external filters or extra cabling. The AutoAssign feature scans a user-designated tuning band and selects available frequencies for the A20-RX's two channels. This feature is designed to make frequency selection and setting quick and easy.
A20-RX Top View
The release of the A20-RX coincides with supporting firmware for the A20-Mini, A10-TX, 8-Series, SD-Utility and A20-Remote. To download supporting firmware, visit www.sounddevices.com/download
The A10-RX may be converted to the A20-RX by sending the unit to Sound Devices for a hardware upgrade. Customers can start the upgrade process by visiting service.sounddevices.com/contact-support
The A20-RX is available for purchase worldwide. To learn more about the A20-RX, visit www.sounddevices.com/product/a20-rx
SpectraBand SpectraBand is a brand-new technology which gives the A20-RX receiver and A20-Mini transmitter an unprecedented tuning range: 470 MHz 1525 MHz. With SpectraBand, you won't need to purchase another receiver dedicated to a specific country or frequency band. SpectraBand gives you access to nearly twice the frequencies available with other systems worldwide - almost 2600 available channels. The A20-Mini will receive a free firmware upgrade to enable SpectraBand.
Brick-wall filtering.
The A20-RX's SAW filters eliminate out-of-band interference so you can get the best RF performance possible. Enjoy immunity from strong interfering signals (for example, a local DTV transmitter) or other transmitters close to the receiver (IFBs, 2-way radios, camera hops) without the need for external filters or extra cabling. The A20-RX's filters (yellow) are compared to two leading competitor wireless systems below (blue and green).
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Sound Devices Releases the A20-RX with SpectraBand Technology 
