Tool/software:
I am using TI MCU CC2642R1F. I am running the DTM test HCI_EXT_EnhancedModemTestTxCmd() in BTool using TI Host Test app + SDK simplelink_cc13xx_cc26xx_sdk_6_10_00_29.
For Bluetooth (R) 5.2 channel 0 I see on a handheld spectrum analyzer: frequency close to 2402 MHz (attached screenshots) even with a small span. This seems to be correct according to the TI SDK docs / parameters:
TI BLE5-Stack API Documentation: HCI
HCI_EXT_EnhancedModemTestTxCmd()
Parameter rfChan Transmit RF channel k=0..39, where BLE F=2402+(k*2MHz).
In RF Bluetooth LE testing terms Channel 0 is the lowest channel and freq. 2402 MHz is normally the lowest.
On internet however I found on several places: Bluetooth LE channel 0 corresponds to 2404 MHz?
Bluetooth_Technology_Overview_Graphic.png (1494×1185) Bluetooth SIG overview page also shows the first channel 37 as advertising channel and start frequency 2402.
