Table 3-6. Modulator Parameter Detail - Datum Systems PSM-500 Installation And Operation Manual

Operation
Representation
Status CXR
Sending, OK
Status Data
NO DATA
Status Clock
Internal, OK
Status Test
Normal
IF Frequency
70.000000MHz
IF Offset
–8.031kHz
IF Level
–20.4dBm
IF Output
Enabled
IF Modulation
QPSK
IF Spectrum
Normal
IF Filter Mask
Normal
»IF Mode
Continuous
»IF Preamble
64 Symbols
IF AUPC
Disabled
»IF AUPC Eb/No
6.5dB
»IF AUPC Max Lvl
–10.0 dB
»IF AUPC Min Lvl
–20.0 dB
IF Mute
Manual
IF Impedance
75 Ohm
Page 3-16

Table 3-6. Modulator Parameter Detail

Modulator Parameter Detail
Type Entry
Read Only Read Only
Read Only Read Only
Read Only Read Only
Read Only Read Only
Numeric 50.000 000 to 90.000 000
MHz
Numeric –1,250.000 to +1,250.000
kHz
Numeric +5.0 to –35.0 dBm
+3.0 max at 50Ω
Selection 0 = Disable, 1 = Enable
Selection 0 = BPSK, 1 = QPSK,
2 = OQPSK, 3 = 8PSK,
6 = 16QAM
Selection 0 = Normal, 1 = Inverted
Selection 0 = IESS, 1 = Legacy
Selection 0 = Continuous, 1 = Burst
Selection 0 = 32, 1 = 64 Symbols
Selection 0 = Disable, 1 = Enable
Numeric 3.0 to 20.0 dB
Numeric +5.0 dBm to Minimum level
Numeric Maximum level to –35 dBm
Selection 0 = Automatic,
1 = Confirm,
2 = Manual
3 = Manual & Pwr Loss
Selection
0 = 50Ω, 1 = 75Ω
PSM-500/500L/500LT SCPC Satellite Modem
Description
Modulator Carrier Status
Modulator Input Data Status
Modulator Bit Rate Clock
Status
Modulator Test Status
Carrier center frequency
Carrier offset frequency
Transmit output power level
Carrier output enable
Modulation Mode. Some
values left available for new
options.
Modulation Spectrum control
Modulation Spectrum Filter
Control. Legacy for PSM-
4900 compatibility.
Only available with burst
option installed.
Selects preamble length when
burst option installed.
Automatic Uplink Power
Control
AUPC remote receive Eb/No
level set point.
Max. Transmit level under
AUPC control
Min. Transmit Level under
AUPC control
Manual requires manual
Carrier enable after Mod
output change. Option 3
forces Cxr off after power fail.
Transmit IF impedance.
PSM-500/500L/500LT - Rev. 0.91