|
Input - QAM
Modulator |
Allowable input bit rate error Coding Input
format
Data connectors |
Corresponding to ±25 kSymb/sec DVB, DAVIC (ITU-T J.83
Annex A), DCII (ITU-T J.83 Annex B) DVB - ASI 188/204 Coaxial,
DVB - Parallel, DVB - Synchronous serial
|
|
ASI BNC
female Parallel/Synch Serial |
75
Ohm 25 socket D Subminiature w/ female threaded posts |
|
| IF Output - QAM Modulator |
|
Output frequency Output level Output
impedance Output connector Output flatness Group delay
variation Carrier frequency accuracy Mute
level Spurious Modulation Symbol rate |
44.00 MHz center frequency (43.75 MHz for 8 MHz
bandwidth) +25 to +40 dBmV 75 ohm F female ±0.4 dB
(over bandwidth = 0.8 symbol rate) ±50 ns max 100 Hz -55
dBc -55 dBc, 5 to 750 MHz QPSK, 16, 32, 64, 128, 256
QAM 7.1 MS/sec max |
|
| Monitoring and Alarms - QAM Modulator |
|
Clock and Data Activity IF Output Level Summary
Alarm Status & Alarm Codes |
LCD
Reading LCD Reading Red LED LCD Reading |
|
| IF Input - QAM Upconverter |
|
IF
Frequency (center of the band) Bandwidth Input Level
Impedance Return Loss Connector IF Detector
Accuracy IF Attenuator Step Size IF AGC (for carrier/digital
input) |
44.00 MHz (43.75 MHz for 8 MHz bandwidth) Passband 6 MHz
(optional 8 MHz) +25 to +35 dBmV (total power) 75 ohm 20 dB
F type (female) 1 dB 0.05 dB
typical enable/disable |
|
| RF Output - QAM Upconverter |
Frequency Range Frequency Step Size Frequency
Accuracy Frequency Response (any 5 MHz band) Frequency
Response (any 7 MHz band) Group Delay (any 5 MHz band) Output
Level Output Level Step
Size RF Detector Accuracy Gain Control
Range Impedance Return Loss (inband) Connector RF
Monitor Point (calibrated) Spurious (50 MHz to 950
MHz) Phase Noise: |
53 to 858 MHz (band center) 12.5
kHz 2 ppm ± 0.3 dB ± 0.4 dB (for wide band options) 15
nsec p-p max (8 nsec typ) +61 dBmV max. 0.05 dB typical ± 1.0 dB typical +45 to
+61 dBmV 75 ohm 16
dB F type -20 dB ±0.5 dB -60 dBc (-70 dBc
typ) |
|
1 to 10 kHz (double side band
noise power) 10 to 50 kHz
(double side band noise power) 50 kHz to 3 MHz (double side band noise
power) 10 kHz Offset (SSB) |
-37 dBc (-40 dBc typ) -54 dBc (-57 dBc typ) -53 dBc
(-55 dBc typ) -95 dBc / Hz @ 10 kHz (-99 dBc / Hz
typical) |
Broadband Noise (average noise all channels outside ± 18
MHz) |
-12 dBmV / 6 MHz (-15 dBmV / 6 MHz typ) -11 dBmV / 8 MHz
(8 MHz option) -30 dBmV / 6 MHz at twice RF freq |
| Modulated Adjacent Noise (6 MHz channel) |
|
± 3 to 3.75 MHz ± 3.75 to 9
MHz ± 9 to 15 MHz |
-58 dBc min (>60
typ) -62 dBc min (>64 typ) -65 dBc min |
| Modulated Adjacent Noise (8 MHz channel option) |
± 4 to 5 MHz ± 5 to 12 MHz ±
12 to 20 MHz |
-58 dBc min -61 dBc
min -64 dBc min |
| Carrier Mute |
Automatic upon frequency change |
| General - System |
Remote Control Serial Interface Connector Power
Requirements Power Consumption Operating
Temperature Mounting Dimensions Weight F
Connectors |
RS232 or RS485 (software selectable) (Optional
SNMP) Dual
RJ45 100 to 240 VAC, 50 to 60 Hz
80 Watts
10 to 40°C (50 to
104°F) Standard 19" (48.3 cm), 1U (1.75") rack space 19"(w) X
14.25"(d) X 1.75"(h) (48.3 X 36.2 X 4.45 cm) 11 lbs (5
kg) ANSI SP-406-1998 |
| Options |
|
1P4 - 43.75 MHz IF with 8 MHz
Passband 2S1 - SNMP Proxy Agent & Interface 2R3 -
Redundant Power Supply (100 to 240 VAC) |
| Accessories |
RS232
/ 485 Serial Interface Adapter MA4000 COMKIT SNMP Manual (with
Option 2S1 only) |