You can distinguish between the old and new models without opening the radio:
Even though you cannot flash a new firmware file, the existing firmware contains several hidden menus and configuration toggles that allow you to customize the radio's performance. 1. Adjusting the FM Frequency Range
The short answer is . The XHDATA D-808 does not support user-end firmware updates. Why the D-808 Cannot Be Updated
Press and hold the button (or the DISPLAY button on some revisions) for roughly 3 to 5 seconds. xhdata d-808 firmware update
Developers in the amateur radio community (such as Ricardo Caratti) have written open-source Arduino libraries for the Si4735 chip.
Press and hold the button (or the DISPLAY button on some variants) for roughly 3 to 5 seconds.
The Airband squelch functionality can sometimes feel aggressive or abrupt depending on your firmware revision. If you find the squelch cutting off transmissions early, it is best to leave it wide open (set to 0) and tolerate the static when hunting for weak aviation signals. Unofficial "Updates" and Performance Mods You can distinguish between the old and new
This comprehensive guide will explain what you need to know about the evolution of the D-808, how to identify your current version, and what to do if you're looking for the "latest" performance.
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If you are curious about which factory firmware version your radio is running, you can access a hidden diagnostic screen using a specific key combination. Turn the radio completely (so the clock is showing). The XHDATA D-808 does not support user-end firmware updates
In the specialized world of shortwave radio listening, the XHDATA D-808 has established itself as a modern classic. Renowned for its exceptional sensitivity, intuitive interface, and robust build quality, it offers performance that punches well above its weight class. However, in the realm of consumer electronics, hardware is only half the equation. The software that drives the device—the firmware—dictates the user experience and functionality. For owners of this popular receiver, the release of the XHDATA D-808 firmware update represents a critical maintenance milestone, offering bug fixes, interface refinements, and a second life for the device.
The original XHDATA D-808 was released in 2018 and quickly gained a cult following. It is characterized by:
Features a USB-C port and a redesigned internal circuit board with fewer components, which some users claim affects AM/Shortwave performance. 0;2a;
Since there's no simple "Settings -> About" menu that directly displays the firmware version, you'll need to rely on physical and functional clues to determine which version you own. The user community has extensively searched for a way to display the firmware revision but has yet to find a method. However, you can still get a very good idea by checking the following: