Atec Acterna-DSAM-2500 Series - Manual (Page 5)

Specifications (preliminary)
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 DSAM-2500A 8 MHz
DSAM-2500B 6 MHz
Level measurement, analog
Signal types CW, video and audio
(NTSC, PAL, and SECAM)
Range –40 to +60 dBmV (1)
Resolution 0.1 dB
Resolution bandwidth 330 KHz
Accuracy (2) ±1.5 dB typical @ 25°C
Level measurement, digital
Modulation types QPR, QPSK, QAM (DVB/ACTS)
Range –40 to +60 dBmV (1)
Resolution 0.1 dB
Resolution bandwidth 330 kHz
Accuracy (2) ±2.0 dB typical @ 25°C
Upstream spectrum (ingress scan)
Spans DSAM-2500A 4 to 65 MHz
DSAM-2500B 4 to 45 MHz
Sweep rate 1.8 seconds or faster
Display scaling and range
5 and 10 dB/division; 6 vertical divisions
Resolution bandwidth 330 kHz
Sensitivity –35 to 60 dBmV (1)
DOCSIS/EuroDOCSIS compatibility
Version DOCSIS 1.0 and 1.1
Upstream transmit range and diplexer crossover
(DOCSIS modes only)
DSAM-2500A 5 to 65 MHz 65/96MHz
(min. downstream DOCSIS
center freq. 100 MHz)
DSAM-2500B 5 to 42 MHz 42/88 MHz
(min. downstream DOCSIS
center freq. 91 MHz)
Upstream modulation QPSK and 16 QAM as
instructed by CMTS
Transmitter output At 25ºC, maximum 55 dBmV
with 16 QAM and 58 dBmV
with QPSK, (typical)
Downstream QAM demodulation
Modulation type 64 and 256 QAM, ITU-T J.83
Annex A, B or C (selectable)
Input range (lock range) –15 to +50 dBmV total
integrated power (3)
from 55 to 1000 MHz
BER (4) Pre- and Post-FEC 10 -4 to 10 -9
MER (4) Range 64 QAM: 21 to 35 dB
Accuracy ±2 dB (typical)
Range 256 QAM: 28 to 35 dB
Accuracy ±2 dB (typical)
EVM (4) Range 64 QAM: 1.2% to 5.8%
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 for 64 and 256 QAM
Annex B, 5.057 Msps for
64 QAM and 5.361 Msps for 256 QAM
Annex C, 5.274 Msps for
64 QAM and 5.361 Msps for 256 QAM
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 IEC 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 or German
Dimensions 4.75 x 9.75 x 2.75 in
(12 x 25 x 7 cm)
Weight 2 lb 12 oz (1.3 kg)
Storage and operating temperature range
0 to 120°F; –20 to +50°C
Power NiMH removable pack, standard
Li-Ion removable pack, optional
Battery life NiMH, 3 hours (typical)
Li-Ion, 4.5 hours (typical)
Charge time NiMH, 5 hours (typical)
Li-Ion, 6.5 hours (typical)
Power supply input 90-264 VAC, 47-63 Hz
(1) Typical, detectable range
(2) Accuracy for levels between –20 to 60 dBmV
Additional uncertainty ±0.5 dB across –20°C to 50°C
Additional uncertainty ±1.0 dB from 4 MHz to 15 MHz
(3) At 64 QAM
(4) Accuracy and behavior from 100 MHz to 1000 MHz for
levels between –5 to 50 dBmV (typical)
figure 10 The DSAM meter and accessories shown
here within the optional transit soft case
5
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Focused entirely on providing equip-
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Acterna helps customers develop,
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data/IP and wireless networks.