Atec Tektronix-RFM210 - Manual (Page 2)

DVB-T Measurement Receiver
RFM210
Flexible Configuration
DVB-T transmission systems throughout the
world use a variety of modulation parameters.
The RFM210 has the flexible tuning/demodula-
tion capability needed to handle this variety.
The tuner/demodulator can handle any stan-
dard VHF, UHF or baseband input, implements
both 2K and 8K carrier mode options, and
supports all DVB modulation options, guard
intervals and FEC rates. Options available for
6, 7 or 8 MHz bandwidths.
Multi-layer Monitoring
Broadcasters can use the RFM210 in combi-
nation with other Tektronix monitoring prod-
ucts to form a multi-layer confidence monitor-
ing solution for DVB-T transmission systems.
The RFM210 demodulates the COFDM signal
into either SPI or ASI transport stream for-
mats. These outputs can go directly into MPEG
protocol monitors, offering an easy, space effi-
cient and low cost multi-layer monitoring solu-
tion. Multi-layer monitoring can help quickly
determine if quality and reliability problems in
the transmitted signal came from problems
in the RF modulation/ transmission path or
the MPEG encoding and multiplexing path in
the broadcast system.
Network Capability
Broadcasters can remotely access and control
the RFM210 through a network connection
using SNMP network protocols. RFM210s
installed in remote, and potentially unstaffed,
transmitter sites can also use SNMP to report
alarm conditions through a network connec-
tion. Broadcasters can use the RFM210 net-
work capabilities to monitor multiple transmit-
ter sites from a single, central location.
Space Efficient
At most transmitter facilities, space is at
a premium. The rackmountable, 1RU-high
RFM210 gives broadcasters comprehensive
RF monitoring without consuming large
amounts of rack space.
Characteristics
Product Specifications
Tuner Characteristics
Frequency Range – VHF/UHF 46 to 860 MHz.
Channel Bandwidth – 6/7/8 MHz (Options).
Input Range – –10 to –77 dBm (Optimum –55
to –30 dBm), typical.
Input Impedance – 75
Ω
.
Demodulator Characteristics
Modulation Systems – QSPK, 16 QAM, 64 QAM.
Carriers Supported – 2K/8K DVB (T) selectable FFT
automatically selected.
Viterbi FEC – Supports all DVB code rates: 1/2, 2/3,
3/4, 5/6, and 7/8.
Guard Intervals – Supports all DVB guard intervals:
1/32, 1/16, 1/8, and 1/4.
Hierarchical Modes – Both HP and LP streams
available simultaneously.
Error Correction – Reed Solomon (204, 188)
and Viterbi.
Synchronization Monitoring – Status of TPS, FEC
decoder, etc.
Measurements
BER – Bit Error Ratio pre/post Viterbi and post RS.
MER – Modulation Error Ratio in dB, Average MER in
%, Peak MER in %.
S/N – Signal to Noise ratio in dB.
STE – System Target Error, Mean and Deviation.
AI – Amplitude Imbalance in %.
QE – Quadrature Error in °.
CS – Carrier Suppression in dB.
PJ – Phase Jitter in °
RMS
.
SF – Sync Failure.
UCE – Uncorrectable Error Blocks.
ENM – Estimated Noise Margin, auto calculated
in dB.
TR 101 290 – Full analysis including Amplitude,
Group Delay and Impulse Response.
RF Measurement Receivers • www.tektronix.com/video_audio 2