I’m using the RadioMaster DBR4-TD Dual Band Receiver, which supports both 2.4 GHz and 868/900 MHz bands simultaneously. When trying to build ExpressLRS for this receiver (target: Unified_ESP32_LR1121_RX_via_UART), the build fails if both regulatory domains (2.4 GHz + 868 MHz) are selected in the configurator.
Here’s the error message I get:
!!! Regulatory_Domain 2400 not compatible with RADIO_SX127X/RADIO_LR1121 !!!
This is confusing because the hardware clearly supports both bands. It seems like the build system expects only one domain at a time depending on the target radio chipset.
Suggested improvements:
1. Detect this and show a clearer message in the Configurator.
2. Allow a dual-regulatory build for dual-band receivers like DBR4.
3. Document clearly which bands are supported per chip/target during build.
Cheers
I’m using the RadioMaster DBR4-TD Dual Band Receiver, which supports both 2.4 GHz and 868/900 MHz bands simultaneously. When trying to build ExpressLRS for this receiver (target: Unified_ESP32_LR1121_RX_via_UART), the build fails if both regulatory domains (2.4 GHz + 868 MHz) are selected in the configurator.
Here’s the error message I get:
!!! Regulatory_Domain 2400 not compatible with RADIO_SX127X/RADIO_LR1121 !!!This is confusing because the hardware clearly supports both bands. It seems like the build system expects only one domain at a time depending on the target radio chipset.
Suggested improvements:
1. Detect this and show a clearer message in the Configurator.
2. Allow a dual-regulatory build for dual-band receivers like DBR4.
3. Document clearly which bands are supported per chip/target during build.
Cheers