User's Manual

3-19 Front Panel Operation
DataNex EMS Wireless, DATA-20 Digital Radio
QAM Modem Status (continued)
Qmdm
Synth LOCK
AFC
3.7 V
Baud
Qmdm DEMOD
Fec
LOCK
LOCK
Baud
Qmdm MOD
IFMOD
LOCK
4 %
Qmdm MOD
Fltr
Intrl
Spctr
%
NRML
18
3
Qmdm
Mode
%
IFOUT 95
64Q
Qmdm MOD
DRT
Enc
k
Baud
k
280.5
1535
DVB
Function Settings Summary
BAUD LOCK (default)
UNLOCK
Indicates modulator PLL is locked to incoming data
clock
IFMOD 0 – 100%
100% NOM
BAUD LOCK (default)
UNLOCK
Indicates demodulator PLL is locked to incoming
data clock
FEC LOCK (default)
UNLOCK
Indicates FEC decoder is synchronized
SYNTH LOCK (default)
UNLOCK
Confirms 70 MHz IF synthesizer is phase locked
AFC 0 – 9.9 VDC
3.7 VDC (nominal)
70 MHz IF synthesizer AFC voltage
IFOUT 0 – 100%
100% (nominal)
Modulator level
Mode 16-64Q Modulation mode:16QAM, 32QAM, 64QAM
BAUD 280.5 K Symbol rate
DRT 1535 K Data rate
ENC DVB Encoding mode
SPCTR NRML Spectrum Normal or Invert
FLTR 18 % Nyquist filter
INTRL 3 Interleave Depth
Continued on next page.