
JDSU DSAM-900B 
w/ Deep Interleave 
Product Specifications
Frequency 
Range  4 to 1,000 MHz 
Accuracy  ±10 ppm at 77°F (25°C) 
Tuning resolution  Analog 10 KHz 
  Digital 50 KHz 
Channel bandwidth  Models ending in A, 8 MHz 
  Models ending in B, 6 MHz 
Level measurement, analog 
Signal types  CW, video and audio 
  (NTSC, PAL, and SECAM) 
Range
(1) 
Resolution  0.1 dB 
Resolution bandwidth  280 KHz 
Accuracy 
Carrier-to-Noise  Input @ ≥ 6 dBmV 
Level measurement, digital 
Modulation types  QPR, QPSK, QAM 
  (DVB/ACTS) 
Range 
Resolution  0.1 dB 
Accuracy
Downstream QAM demodulation 
Modulation type  64 and 256 QAM, ITU-T J.83 
  Annex A, B or C (selectable) 
Input range (lock range) 
  from 55 to 1000 MHz 
BER 
MER 
  Accuracy ±2 dB (typical) 
  Range 256 QAM: 28 to 35 dB 
  Accuracy ±2 dB (typical) 
EVM 
  Accuracy ±0.5% (1.2% to 2.0%) 
  ±1.0% (2.1% to 4.0%) 
  ±1.4% (4.1% to 5.8%) 
  Range 256 QAM: 1.1% to 2.4% 
  Accuracy ±0.6% 
Symbol rate 
  Annex A, 
  5.057 to 6.952 Msps (64 and 256 QAM) 
  Annex B, 
 5.057 Msps (64 QAM) and 5.361 Msps (256 QAM) 
  Annex C, 
 5.274 Msps (64 QAM) and 5.361 Msps (256 QAM) 
Test Point Compensation (user editable) 
Forward Path TPC  Max 100 dB Total  
  Forward External Loss (dB): 0 to 50 
  Forward Probe Loss (dB): 0 to 50 
Reverse Path TPC 
  Reverse Internal Loss (dB): 0 to 55 
  Reverse External Loss (dB): 0 to 55 
  Reverse Probe Loss (dB): 0 to 55 
Reverse Telemetry Level (dBmV)  0 to 55 
Reverse Sweep Insertion Level (dBmV)  0 to 55 
(2) 
±1.5 dB typical @ 25°C 
  30 to 45 dB ± 2 dB 
  45 to 48 dB ± 3 dB 
(1) 
(2) 
(4) 
(5) 
(5) 
Pre- and Post-FEC 10-4 to 10-9
(6)
±2.0 dB typical @ 25°C 
(3) 
Range 64 QAM: 21 to 35 dB 
Range 64 QAM: 1.2% to 5.8% 
  Max 55 dB Total 
–40 to +60 dBmV 
–40 to +60 dBmV 
–15 to +50 dBmV 
Interfaces 
RF  75 ohm, F81 or BNC option 
  Max. sustained voltage 100 VAC, 140 VDC 
RS232  Standard via DB9 on charger 
  module or optional direct cable 
Printer compatibility  Epson and Citizen 
Ethernet  RJ45, 10 base T, 
  TCP/IP and UDP supported 
USB  v1.1 host mode, 150 mA 
  maximum slave (future firmware release) 
Standards compliance 
Shock and vibration  IEC 60068 
Drop  EC 61010 
Handle stress  IEC 61010 
Water resistance  MIL-STD-810E 
Safety – emissions  EN 55022 
Safety – immunity  EN 61000 
General 
Display  320 x 240, grayscale 
  Selectable back light 
Language support 
  (user interface and help system) 
  English in all models 
  No-charge second language 
  option of Spanish, French, German, 
  Japanese, Polish or Chinese 
Dimensions 
  Model 900B: 
  4.75 x 9.75 x 3.25 in 
  (12 x 25 x 8.25 cm) 
Weight 
  Model 900B: 
  3 lb 4 oz (1.5 kg) 
Storage and operating temperature range 
  0 to 120°F; –20 to +50°C 
Power  
  Li-Ion removable pack, Standard
 Super Capacity Li-Ion removable pack, Optional 
Battery life  
  Standard Li-Ion, 4 hours (typical) 
  Super Capacity Li-Ion, 8 hours (typical)  
Charge time  
  Standard Li-Ion, 6 hours (typical) 
  Super Capacity Li-Ion, 12 hours (typical) 
Power supply input  90-264 VAC, 47-63 Hz
Upstream spectrum (ingress scan) 
Frequency range  Models ending in B,  
  4 to 45 MHz 
Sweep rate  Less than 2 seconds 
Display scaling and range 
  5 and 10 dB/division; 6 vertical divisions 
Resolution bandwidth  280 kHz 
Range
(1) 
–40 to 60 dBmV (typical) 

Downstream spectrum (forward scan) 
Frequency Range  40 to 1000 MHz 
Sweep rate  Less than 2.5 seconds 
Display scaling and range 
  5 and 10 dB/division; 6 vertical divisions 
Resolution bandwidth  280 kHz 
Dwell  1 ms 
Span  50MHz or 10MHz zoom 
Range
(1)   
–35 to 60 dBmV (typical) 
Constellation 
Modulation type  64 and 256 QAM 
Zoom capability  Yes 
Return QAM Generator (Option) 
Frequency Range    
  Models ending in B: 5 to 55 MHz 
Signal Level Range  8 to 58 dBmV 
Signal Modulation  CW or 16 QAM 
Symbol Rates (Msps)  1.28, 2.56, 3.84, 5.12 
(1) Total integrated power, detectable range 
(2) Accuracy for levels between –20 to 55 dBmV 
Additional uncertainty ±0.5 dB across –20°C to 50°C 
Additional uncertainty ±1.0 dB from 4 MHz to 15 MHz 
(3) Total integrated power, At 64 QAM 
(4)DSAM-900B with Deep Interleave can support up to (I,J) = (128, 4) 
interleave for ITU-T J.83 Annex B 
(5) Accuracy and behavior from 100 MHz to 1000 MHz for 
levels between –5 to 50 dBmV (typical) 
(6) The sum of the Internal, External and Probe Losses and 
 the Telemetry level must be greater than or equal to 10.0 and 
 less than or equal to 55.0