Spectral scan utility options

[Curt]

I am trying to use the spectral scan utility to get data across US915 uplink channels (e.g. ~902 through ~915). The documentation states “For FPGA image that provides LBT support, the spectral scan gets less flexible. The following parameters have constraints”

When attempting these channels we get:

$ sudo ./util_spectral_scan -f 902:0.2:915 -n 5000 -b 125 -l "results"
+++ Start spectral scan of LoRa gateway channels +++
WARNING: The FPGA supports LBT, so running spectral scan with specific constraints
         => Check the parameters summary below
ERROR: start frequency 902000000 is not supported, should be >=915000000

How can we disable LBT in order to get access to scan the frequencies we care about? Otherwise, this util seems quite useless? What am I missing

thanks

• This topic was modified 4 years ago by Curt.

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