Sound Devices Astral TX firmware

Firmware history

1. Version 8.40 Latest Released Aug 18, 2026 First seen Aug 19, 2026

   Dynamic font sizing for transmitter names and battery percentage now displayed. — summary by updatemystuff.com

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   New

   Added dynamic font siz​ing for transmitter names on the e-paper display. Shorter names now appear larger and make better use of available display are​a.

   Fixes

   Astral TX now shows battery remaining %. Voltage is displayed if batteries are hot-swapped.

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2. Version 8.30.03 Released Mar 11, 2026 First seen Aug 19, 2026

   Enables power-on with RF muted and improves receiver-to-transmitter lock speed. — summary by updatemystuff.com

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   New

   Ability to power on an Astral TX or Astral HH with RF muted.

   Changes

   Faster lock of receiver to transmitter

   Astral TX v8.20 Firmware Released: ​October 02, 2025

   New

   Added ability to wirelessly update Astral TX firmware from an Astral receiver.

   Astral TX Switch option ‘GPIO’ changed to ‘Ctrl’. ​Used to trigger Macros or GPIOs.

   Astral TX v8.10.02 Firmware Released: June 05, 2025

   Fixed

   Supplementary fix to address the elimination of rare audio artifacts when using balanced input (Astral TX only)

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3. Version 8.30 Released Mar 11, 2026 First seen Jul 20, 2026
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   New

   Ability to power on an Astral TX or Astral HH with RF muted.

   Changes

   Fas​ter lock of receiver to transmitter

   Astral TX v8.20 Firmware Released: October 02, 2025

   New

   Added ability to wirelessly update Astral TX firmware from an Astral receiver.

   Astral TX Switch option ‘GPIO’ changed to ‘Ctr​l’. Used to trigger Macros or GPIOs.

   Astral TX v8.10.02 Firmware Released: June 05, 2025

   Fixed

   Supplementary fix to address the elimination of rare audio artifacts when using balanced input (Astral TX only)

   Release notes & download
4. Version 8.10.01 Released May 14, 2025 First seen Jul 20, 2026
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   Fixed

   Rare audio artifacts when using the balanced input have been significantly reduced.

   Astral TX v8.10 Firmware Released: April 23, 2025

   New

   Added the ‘GPIO’ option for the Astral TX switch. This can be used to trigger GPIO’s from the Astral Opto.

   Fixed

   Low frequencies no longer cause audible pops on Astral TX balanced inputs.

   Fixed an issue where TC LED may inadvertently start flashing after being powered down for several hours.

   Fixed an issue where RF and audio are not disabled upon connection to a PC. They should be disabled.

   Astral TX v8.00 Firmware Released: December 04, 2024

   New

   Ability to unlock restricted frequencies from Astral Receivers that have the necessary Frequency Authorizations installed. Appropriate licenses required.

   New Settings > System > Miscellaneous Menu that adds On/Off settings for permitting access to Extra High RF power, automatically resuming record when powering up, and automatically powering on when a ​Lemo input is connected.

   Added Aux On/Off - enables the Astral Receiver to re-route received audio from the transmitter to a different output. Ideal for talkback purposes.

   Fixed

   Swapped position of Pair and Mode settings in the Astral TX menu for quicker access to pairing.

   Added RF On/Off toggle in the Astral TX RF menu and removed the ‘Off’ setting from the RF Power menu.

   Astral TX v7.70 Firmware Released: July 17, 2024

   New

   Added 3-Wire Lav Mic Type audio input option.

   Fixed

   Astral TX ePaper display now always updates battery level upon battery insertion

   Very low frequencies no longer cause rare audio clicks.

   Astral TX now reconnects more reliably with Astral Remote after putting the app into the background then reopening the app.

   The possibility of corrupting recordings when reaching the 4GB limit is now eliminated.

   Astral TX v7.64 Firmware Released: May 21, 2024

   New

   Add support for T&M (Test and Measurement) modulation.

   Fixed

   Timecode drift after pulling battery or powering down is now fixed.

   Auto-resumed reco​rdings after a prolonged period of the transmitter being powered down, no longer result in an invalid timestamp.

   Astral Mini does not always power on with Lav connection, is now fixed.

   Various system improvements.

   Astral TX v7.62 Firmware Released: February 20, 2024

   New

   Faster NexLink power on/off

   Changes

   Updates to Country List Data.

   Fixed

   The Auto-Resume Record when Powering On function now works without having to power down the transmitter first.

   The orange remaining battery runtime indicator no longer comes on too soon for certain combinations of battery type and current draw.

   Astral TX v7.60 Firmware Released: November 16, 2023

   New

   Support for the Schoeps CMD42 digital microphone (Astral TX only).

   Astral TX v7.52 Firmware Released: August 24, 2023

   New

   RF on/off toggle switch option

   Astral TX v7.51 Firmware Released: August 10, 2023

   New

   Adds support for 2ch wav recording from AES42 or AES3 inputs types

   ID function now includes vibration as well as flashing LEDs.

   Fixed

   UI Improvements to Input Type selection

   Fixed an issue with the transmitter not always remembering power state correctly when removing batteries

   Various system improvements

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