Garmin GTR 200, Installation Manual

Page: 75 / 85

190-01553-00 GTR 200 Installation Manual
Rev. B Page B-11
Message format (SL 40):
“MRR”.............Company identifier.
“C” ...................Message class.
“01”..................Message identifier.
mk ....................Active frequency: m = MHz, where m = desired MHz frequency - 30h, ranging
from 118 to 136 MHz, (i.e. 76h to 88h, A2h); k = (KHz offset / 25KHz) + 30h,
ranging from 000 to 975KHz in 25 KHz steps.
mk ....................Standby frequency: m = MHz, where m = desired MHz frequency - 30h, ranging
from 118 to 136 MHz, (i.e. 76h to 88h, A2h); k = (KHz offset / 25KHz) + 30h,
ranging from 000 to 975KHz in 25 KHz steps.
a .......................Transceiver status:
R = Normal receive
M = Monitor receive
T = Transmit active
S = Stuck mic
s........................Squelch test setting: (ASCII) 0 = automatic; 1 = test selected
Example message:
$PMRRC01G4LFR0<chksm><CR><LF>
Active frequency is 119.100MHz, the standby frequency is 124.550MHz, receive function, and squelch is
automatic.
Message format (SL 30):
“MRR”.............Company identifier.
“V”...................Message class.
“35”..................Message identifier.
mk ....................Active frequency: m = MHz, where m = desired MHz frequency - 30h, ranging
from 118 to 136 MHz, (i.e. 76h to 88h, A2h); k = (KHz offset / 25KHz) + 30h,
ranging from 000 to 975KHz in 25 KHz steps.
mk ....................Standby frequency: m = MHz, where m = desired MHz frequency - 30h, ranging
from 118 to 136 MHz, (i.e. 76h to 88h, A2h); k = (KHz offset / 25KHz) + 30h,
ranging from 000 to 975KHz in 25 KHz steps.
a .......................Transceiver status:
R = Normal receive
M = Monitor receive
T = Transmit active
S = Stuck mic
F = Comm failure
s........................Squelch test setting: (ASCII) 0 = automatic; 1 = test selected
Example message:
$PMRRV35G4LFR0<chksm><CR><LF>
Active frequency is 119.100MHz, the standby frequency is 124.550MHz, receive function, and squelch is
automatic.