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R&S®DSADOCSIS信号分析仪可以确保一流的信号质量，同时满足对HFC网络中日益增长的数据吞吐量的需求。
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DSA 47MHz至1794MHzDOCSIS 信号分析仪|罗德与施瓦茨 (在产)
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罗德与施瓦茨 · Rohde & Schwarz
DSA DOCSIS 信号分析仪
R&S®DSA 是罗德与施瓦茨的 DOCSIS 信号分析仪。官方目录位于「分析仪 / 广播电视分析仪」。官方标称频率范围：model .02。官方技术指标共 117 组、235 项，详见「详细指标」。
产品简介
R&S®DSA DOCSIS 信号分析仪可以确保一流的信号质量，同时满足对 HFC 网络中日益增长的数据吞吐量的需求。
官方公布的主要指标：频率范围 model .02；频率分辨率 1Hz；分辨率 1280 × 800 pixel (16 × 10 aspect ratio)；输入阻抗 10 kΩ；downstream input 47 MHz至1794MHz。
官方公布的产品型号：DSA、DSA-K1500、DSA-K1501、DSA-K1505、DSA-K950、DSA-K1502。
核心参数
• 频率范围：model .02
• 频率分辨率：1Hz
• 分辨率：1280 × 800 pixel (16 × 10 aspect ratio)
• 输入阻抗：10 kΩ
• downstream input：47 MHz至1794MHz
• upstream input：5 MHz至204MHz
• upstream input, 204 MHz：< -110 dBc (1Hz) at 1kHz
• (model .03 only)：< -110 dBc (1Hz) at 10kHz < -130 dBc (1Hz) at 100kHz < -150 dBc (1Hz) at 1MHz
产品型号
• 官方型号：DSA、DSA-K1500、DSA-K1501、DSA-K1505、DSA-K950、DSA-K1502
资源下载
详细指标请见 DSA 详细指标页。
罗德与施瓦茨 Rohde & Schwarz · onetest 仪器资源库
以下为 R&S®DSA 的官方技术指标，共 117 个指标组、235 项。
参数名以行业通用中文术语为主（其中 195 项保留官方规格书原文），数值与单位保留官方规格书原样。
频率
• 频率范围：model .02
• downstream input：47 MHz至1794MHz
model .03
• downstream input：47 MHz至1794MHz
• upstream input：5 MHz至204MHz
• 频率分辨率：1Hz
• 单边带相位噪声：downstream input, 1002MHz < -107 dBc (1Hz) at 10kHz < -127 dBc (1Hz) at 100kHz < -146 dBc (1Hz) at 1MHz < -150 dBc (1Hz) at 10MHz < -150 dBc (1Hz) at 100MHz ｜ < -93 dBc (1Hz) at 1kHz
• upstream input, 204 MHz：< -110 dBc (1Hz) at 1kHz
• (model .03 only)：< -110 dBc (1Hz) at 10kHz < -130 dBc (1Hz) at 100kHz < -150 dBc (1Hz) at 1MHz
电平
• Downstream input：75 Ω, male, F connector
• Maximum safe input level：+67 dBmV
• 0 dB attenuation, preamplifier off：24 dB (typ.)
• 回波损耗：preamplifier off ｜ 14 dB (typ.)
• preamplifier on：10 dB (typ.)
• Upstream input：model .03 only ｜ 75 Ω, male, F connector
• Maximum safe input level：+67 dBmV
• 0 dB attenuation, preamplifier off：24 dB (typ.)
• 回波损耗：preamplifier off ｜ 15 dB (typ.)
• preamplifier on：12 dB (typ.)
• Port-to-port isolation：> 40 dB
• Spurious response, inherent：RF attenuation = 0 dB, RBW < 1MHz, ｜ < -90 dBm
without input signal
• Amplitude accuracy：+25 °C +5 °C to +40 °C ｜ ±0.5 dB ±1 dB
• Level units：dBm, dBmV, dBµV, dBV
Connectivity
• Reference in：10MHz or 10.24MHz, auto-select
• BNC female：50 Ω
tolerance
• input range, sinusoidal：0 dBm to +13 dBm +15 dBm max. input level
• Reference out：10MHz or 10.24MHz; selectable
• BNC female：50 Ω 9.5 dBm ±1.0 dBm
• Trigger in：BNC female ｜ 50 Ω
• 输入阻抗：10 kΩ
• input range：0 V to +5.0 V DC
max. +5 V
• Trigger out：BNC female 5.0 V, 50 Ω output impedance ｜ 50 Ω
• max. sink/source current：100 mA
• ASI：BNC female ｜ 75 Ω
EN 50083-9 Annex B (270 Mbps)
• SFP+：1 Gigabit Ethernet, 10 Gigabit Ethernet;
IPv4, ARP, ping
• USB：USB 2.0, type A, 3 × front, 1 × rear
• HDMI™：HDMI™ 1.4, type A min. 1280 × 800 pixel
(16 × 10 aspect ratio) display
• LAN：RJ-45 connector ｜ 100BASE-T; 10 Mbps/100 Mbps,
DOCSIS 3.1 downstream analyzer
• Compliant to standard：CM-SP-PHYv3.1
• Settings：DOCSIS 3.1 downstream analyzer RF (center)
MER comp
• 0.0 dB至55.0 dB with preamplifier off)
SFP+ output
• alarm thresholds：minimum MER RMS
maximum BER post BCH/profile
• meas config：MER averaging (on/off)
• constellation：plot type (constellation, density)
visual (data color, background color)
• Signal status：PLC lock
demodulator lock
• Alarm tab：shows MER and BER violations
• Numerical measurements：signal power
(of selected profile or all profiles)
• Graphical measurements：MER versus time
MER versus subcarrier
• constellation：NCP: QPSK, QAM16, QAM64
overrange: QAM8192, QAM16384
• Residual MER floor：RF ≤ 600MHz 600MHz < RF ≤ 1000MHz ｜ ≥ 50 dB (nom.) ≥ 48 dB (nom.)
• RF ≥ 1000 MHz：≥ 47 dB (nom.)
DOCSIS 3.1 upstream analyzer (R&S®DSA-K1500 option)
• Compliant to standard：CM-SP-PHYv3.1
• Settings：DOCSIS 3.1 upstream analyzer RF (center)
rolloff
• 1.875/2.1875 µs)
cyclic prefix length
• 2.8125/3.125/3.75/5/6.25 µs)
(0 dB to 4330 dB with preamplifier on,
• 0 dB至430 dB with preamplifier off)
scheduling (periodic, single)
• scheduling repeat interval：in frames
• trigger input：offset
• trigger input slope：polarity
SFP+ output
• alarm thresholds：minimum MER RMS
maximum BER after LDPC/IUC
• constellation：plot type (constellation, density)
visual (data color, background color)
• Signal status：burst demodulation lock
FEC lock
• Alarm tab：shows MER and BER violations
• Numerical measurements：Note: Initial ranging, bandwidth requests, signal power
• and probes provide a subset of：burst timing offset
• measurements.：frequency offset
all codeword lengths)
• Graphical measurements：Note: Initial ranging, bandwidth requests, MER versus time
• measurements.：MER versus subcarrier
MER versus minislot
• constellation：BPSK, QPSK, QAM8, QAM16, QAM32,
QAM1024, QAM2048
• Residual MER floor：with ｜ > 50 dB (nom.)
(R&S®DSA-K1501 option)
• J.83 analyzer：CM-SP-DRFI
ETSI EN 300429
• Interleaver：J.83/A/C ｜ 12, 17
• J.83/B：(I,J) = (128,1); (64,2); (32,4); (16,8);
MER comp
• 0.0 dB至55.0 dB with preamplifier off)
after Reed-Solomon)
• J.83 analyzer：standard (J.83/A/C, J.83/B)
MER comp
• 0.0 dB至55.0 dB with preamplifier off)
Solomon, after Reed-Solomon)
• alarm thresholds：minimum MER RMS
maximum BER after Reed-Solomon
• meas config：MER averaging (on/off)
• constellation：plot type (constellation, density)
grid color, grid on/off)
• Signal status：demodulator lock
MPEG lock
• Alarm tab：shows MER and BER violations
• Numerical measurements：signal power
CER uncorrected
• Graphical measurements：MER versus time
• constellation：J.83/A/C:
QPSK, 16QAM, 32QAM, 64QAM,
• 128QAM, 256QAM,1024QAM
DOCSIS, J.83/B:
• 64QAM, 256QAM
• 100 MHz < RF ≤ 1200 MHz：≥ 56 dB (nom.)
requires R&S®DSA-K1501 option
• Compliant to standard：J.83 analyzer CM-SP-DRFI
ETSI EN 300429
• 频率范围：model .03
• upstream input：5 MHz至204MHz
• Settings：J.83 analyzer standard (J.83/A/C, J.83/B)
MER comp
• 0.0 dB至43.0 dB with preamplifier off)
Solomon, after Reed-Solomon)
• alarm thresholds：minimum MER RMS
maximum BER after Reed-Solomon
• meas config：MER averaging
• constellation：plot type (constellation, density)
grid color, grid on/off)
• Signal status：demodulator lock
MPEG lock
• Alarm tab：shows MER and BER violations
• Numerical measurements：signal power
codewords, uncorrected
• Graphical measurements：MER versus time
• constellation：J.83/A/C:
QPSK, 16QAM, 32QAM, 64QAM,
• 128QAM, 256QAM,1024QAM
J.83/B:
• 64QAM, 256QAM
DOCSIS 3.0 upstream analyzer (R&S®DSA-K1500 option)
• Settings：DOCSIS 3.0 ATDMA upstream analyzer RF (center)
(1.28 Msymbol/s, 2.56 Msymbol/s,
• 5.12 Msymbol/s)
MER optimize (with trigger only)
• 0.0 dB至43.0 dB with preamplifier off)
Solomon, after Reed-Solomon)
• alarm thresholds：minimum MER RMS
maximum BER after Reed-Solomon
• constellation：plot type (constellation, density)
grid color, grid on/off)
• Signal status：demodulator lock
FEC lock
• Alarm tab：shows MER and BER violations
• Numerical measurements：burst RX power
codeword coverage, IUC
• Graphical measurements：MER versus time
• constellation：QPSK, QAM8, QAM16, QAM32, QAM64
• Residual MER floor：with ｜ > 45 dB (nom.)
QPSK1 preamble,
• 2300 byte bursts,
(1.6 MHz bandwidth),
• 5.8MHz ≤ RF ≤ 84.2MHz
DOCSIS timing analysis (R&S®DSA-K1505 option)
• Numerical measurements：downstream: RMS DOCSIS timestamp jitter
measurement interval for OFDM signal,
• 200 ns typical at maximum measurement
interval for SC-QAM signal
• upstream 2:：RMS burst timing jitter
measurement intervals
• 1 pulse per second (PPS) input：timestamp offset
OFDM channel configuration
• SFP+：downstream OFDM or SC-QAM channel
configured)
• Graphical measurements：downstream: timestamp jitter versus time
• upstream 2:：burst timing jitter versus time
Dynamic upstream analysis (requires R&S®DSA-K1500 option)
• Compliant to standard：CM-SP-PHYv3.1
CM-SP-PHYv3.0
• Settings：IUC filter
equalizer (on/off)
• 0.0 dB至50.0 dB with preamplifier off)
• downstream signal configuration,：RF (center)
• DOCSIS 3.1：equalizer (on/freeze)
• 0.0 dB至50.0 dB with preamplifier off)
• upstream signal configuration：UCID
• 0.0 dB至43.0 dB with preamplifier off)
prefilter length (short, medium, long)
• Signal status：MAC addresses list with
acquisition log
• DOCSIS 3.0：see DOCSIS 3.0 upstream analyzer
• DOCSIS 3.1：see DOCSIS 3.1 upstream analyzer
• Numerical measurements：DOCSIS 3.0 see DOCSIS 3.0 upstream analyzer
• DOCSIS 3.1：see DOCSIS 3.1 upstream analyzer
• Graphical measurements：DOCSIS 3.0 see DOCSIS 3.0 upstream analyzer
• DOCSIS 3.1：see DOCSIS 3.1 upstream analyzer
• Compliant to standard：CM-SP-PHYv3.1
CM-SP-PHYv3.0
• Settings：SFD pilot frequency (5 MHz至204MHz)
• 0.0 dB至43.0 dB with preamplifier off )
SFP+
• DOCSIS 3.0 ATDMA alarm thresholds：minimum MER RMS
• maximum BER before Reed：Solomon
• maximum BER after Reed：Solomon
• DOCSIS 3.1 OFDMA alarm thresholds：minimum MER RMS
以上为前 143 项指标；完整指标（共 235 项）见官方规格书（本页底部「资源下载」）。
型号与选件
• 官方型号：DSA、DSA-K1500、DSA-K1501、DSA-K1505、DSA-K950、DSA-K1502
指标整理自官方文件：DSA_dat-sw_en_3607-0698-22_v0700.pdf
资源下载
罗德与施瓦茨 Rohde & Schwarz · onetest 仪器资源库