Save frequency monitor scan to file

I am trying to save a frequency monitor scan to file?

:local sub1
:set sub1 ([/system identity get name])
/interface wireless frequency-monitor wlan1 duration=120 save-file=“$sub1 frequency-monitor.txt”

but getting error

{:local sub1
{… :set sub1 ([/system identity get name])
{… /interface wireless frequency-monitor wlan1 duration=120 save-file=“$sub1 frequency-monitor.txt”
expected end of command (line 3 column 58)

The answer is quite simple: there is no “save-file” option to frequency-monitor.

Thanks for replying!

Any other option or method available to remote frequency monitor (or frequency usage!) CPE’s ?

I don’t know of one, maybe someone else does.

The Dude has a particularly elegant frequency monitor tool, but I suspect if you try to use it remotely on a CPE, you’ll just get disconnected.