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Firmware Revision 2025-11-25
- Divimath Goggle Firmware
- Divimath VTX Firmware
- Divimath Goggle Emergency Recovery Files (for recovery use only)
What’s New in This Revision
- Added support for HDMI VTX
- Goggle now supports 1080p24 video input from the HDMI VTX
- Fixed an issue where using the stick command for 0mW mode (sticks down and out) while Broadcast was set to Public caused the VTX to power on in Encrypted mode instead of the selected Public mode
- Fixed an ArduPilot integration bug where the flight controller could change VTX channel and power when it should not
- Fixed an ArduPlane issue where stick commands did not open the VTX menu
Previous Firmware Versions 🔽
Firmware Revision 2025-09-17
- Divimath Goggle Firmware
- Divimath VTX Firmware
- Divimath Goggle Emergency Recovery Files (for recovery use only)
What’s New in This Revision
- Improved reliability and security
- Added additional encryption modes
⚠️ Important Notice:
These firmware files are for Divimath NDAA products only.
If installed on non-NDAA devices, the unit will brick and become non-functional. While recovery may be possible using the emergency recovery files, the device will not operate correctly with this firmware.
FAQ
Q: How do Divimath NDAA-compliant products differ from HDZero products?
A: Divimath NDAA-compliant products are similar to the proven HDZero digital video system but are built specifically to meet U.S. government sourcing and compliance requirements. Divimath NDAA-compliant products add a key feature: encrypted digital video transmission. This encryption protects against unauthorized viewing and is exclusive to the NDAA-compliant product line. While Divimath NDAA products remain compatible with HDZero receivers when encryption is disabled, encrypted video streams can only be viewed using Divimath NDAA-compliant receivers. HDZero receivers cannot decode encrypted video from Divimath NDAA transmitters.
Q: What does NDAA compliance mean?
A: NDAA compliance ensures that our products meet U.S. government regulations regarding sourcing and manufacturing. Divimath's NDAA-compliant products are free from restricted components and are suitable for use in federal, defense, and other sensitive applications requiring secure supply chains.
Q: Where are Divimath products made?
A: Divimath products are manufactured in Thailand and owned by Divimath, Inc., a U.S.-based company. This provides transparency and security in our supply chain while supporting domestic engineering and support services.
Q: How does Divimath’s video system compare to analog?
A: Unlike analog systems, Divimath’s digital video technology eliminates image warping and color shifting, offering consistently clear visuals. Our system also offers similar range and predictable signal recovery, with none of the stutters or freezes common in other digital systems.
Q: What is the video latency of Divimath’s system?
A: Divimath’s video transmission offers industry-leading, sub-3ms glass-to-glass latency with no frame-to-frame variation—far lower than typical digital systems, which can have 30-200ms of delay.
Q: Can Divimath systems work with existing analog setups?
A: Yes. Our video systems include a built-in analog video receiver and HDMI input for seamless integration with existing infrastructure, making upgrades simple and cost-effective.
Q: How does Divimath's digital video encryption work?
Divimath digital link is encrypted using AES256.
Encryption occurs at the physical layer which means:
- It is almost impossible to hack the link without a Divimath receiver
- A Divimath receiver without correct password is not able to receive video
Encryption can be disabled if desired (e.g. at racing events).