[pi3b ~]$ tune-s2 20 N 1000 -daemon 1
Attempt #1 to connect to gpsd at localhost...
LNB: low: 10750 high: 0 switch: 0
opening: /dev/dvb/adapter0/frontend0
frontend: (MN88436 ATSC/QAMB frontend) fe_type (3)
fmin 44 MHz
fmax 1002 MHz
min_sr 0 Ksps
max_sr 0 Ksps
LOW band
daemonize -> yes (1), don't forget to kill it when finished demuxing
PID:        10470

[pi3b ~]$ dvb-fe-tool -mg
FREQUENCY = 509000000
MODULATION = VSB/8
DELIVERY_SYSTEM = ATSC
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 1.17x10^-6 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 5.87x10^-6 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0
Lock   (0x1f) Quality= Good Signal= -67.50dBm C/N= 23.30dB UCB= 218435769 postBER= 0 PER= 0