Thanks,@athoik
I have test this interesting Scan options
"
The airband has a lot of channels to scan. Explicitly listing them all is not practical, so use a channel range.
rtl_fm -M am -f 118M:137M:25k -s 12k -g 50 -l 280 | play -r 12k ..."
I have use this command line:
The airband has a lot of channels to scan. Explicitly listing them all is not practical, so use a channel range.
rtl_fm -M am -f %sM:137M:25k -s 12k -g 50 -l 280 | play -r 12k ...
-f start:stop:interval a range of frequencies to scan and freq step
It would be fantastic if we have the possibility to change second frequency in the scan option , and may be read frequency that is active.
http://kmkeen.com/rtl-demod-guide/