TideMaster - Operating Manual: MANUAL-1094978189-1 | issue: 1.1
© 2021
– Valeport Ltd
Page | 48
9.4.5 Real Time Data
Real Time data can be broadcast in several different formats.
9.4.5.1 NMEA
A NMEA style output is the standard data format and provides the most detailed information from the
instrument. The TideMaster will always output the $PVTM0 string and will additionally output a $PVTM1 or
$PVTM2 string if an additional sensor is enabled.
$PVTM0 = Tide data, same for Pressure or Radar measurment
$PVTM0,ID,ddmmyyyy,hhmmss,tt.ttt,h.hhh,D,vv.v,SSSS*hhCL (52 chars)
// ID
Station ID
// Date
ddmmyyyy
// Time
hhmmss
// Tide Height
tt.ttt
// Tide height stdev
h.hhh
// Tide height units
D (0,1,2) (dBar, Metres, Feet)
// Battery voltage
vv.v
// Status
// *hh checksum of the above
// CL <cr><lf> end of string
$PVTM1 = Meteorological Data, same format for Windsonic or MetPak II
$PVTM1,ID,ddmmyyyy,hhmmss,sss.ss,kk.kk,mmm.mm,S,ddd.d,nn.nn,aaaa.a,A,ttt.t,T,ppp.p,hhh.h*hhCL (85
chars)
// ID
Station ID
// Date
ddmmyyyy
// Time
hhmmss
// wind speed
sss.ss
// wind speed
stdev kk.kk
// max gust
mmm.mm
// wind speed units
S (0,1 or 2) (kts, m/sec, mph)
// wind direction
ddd.d
// wind direction
stdev nn.nn
// air pressure
aaaa.a
// air pressure units
A (0,1) (hPa mbar)
// air temperature
ttt.t
// temperature units
T (0 or 1) (degC DegF)
// dew point
ppp.p
// humidity
hhh.h
// *hh
checksum
// CL <cr><lf>
end of string
