Need help with LFRX

Hi all !

I am interested in observing spectrum around 200kHz and tried the
following
command :
./usrp_fft.py -R A:0 -f 200000 -d 112
with a coil antenna connected to RX-A input of LFRX daughterboard.

Should it work ?
If so, does it mean that there is something wrong with my antenna ?

Regards,
Pawel