Atec RFM210 User Manual

Features & Benefits

Comprehensive RF
Measurement and Monitoring
Capability Helps You Identify
Degradations in Transmitter
Performance and Efficiency
Before They Become Quality
and Reliability Problems

High Performance
Tuner/Demodulator Offers the
Flexibility Needed for Use in a
Wide Range of DVB-T
Broadcast Systems

User-configurable Alarm Relays
and Alarm Reporting via SNMP
Network Protocols Let You
Notify Engineers and
Operators of Transmitter
Problems Either On-site or in a
Central Monitoring Facility

You can Connect the MPEG-2
Transport Stream Output
Directly to an MPEG Protocol
Monitor, Offering a Compact,
Affordable Monitoring Solution
to Help You Quickly Identify
and Isolate Problems in Either
the Transport Stream or the
RF Signal

Rackmountable, 1RU Package
Simplifies Installation When
Space is at a Premium

Applications

Quality Control and RF Signal
Monitoring for DVB-T
Broadcast Systems

DVB-T Measurement Receiver

RFM210

Product Information

The RFM210 offers comprehensive RF confi­dence monitoring and support for a wide
range of DVB-T transmitter configurations,
with network capability in an affordable,
space-efficient package.Working in
combination with other Tektronix monitoring
products and backed by Tektronix world
class service and support, the RFM210
offers a superior value solution for monitoring
critical links in DVB-T broadcasting systems,
helping broadcasters avoid costly quality
and reliability problems and lower overall
operating expenses.

Comprehensive RF Signal
Monitoring

The RFM210 measures a comprehensive set
of transmission parameters and can identify
degradations in transmitter performance or
efficiency before they become major quality
or reliability headaches. For example, most
DVB-T confidence monitors measure Bit-Error­Rate (BER) as a primary figure of merit for
transmitter operations.This measurement
lacks the sensitivity needed to detect the
onset of performance degradation.The
RFM210 measures Modulation Error Ratio
(MER).This highly sensitive measure looks
at multiple factors such as carrier leakage,
I/Q level and quadrature imbalance to develop
a figure of merit that can identify subtle
performance degradations.

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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/demodula­tion capability needed to handle this variety.
The tuner/demodulator can handle any stan­dard 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 combi­nation with other Tektronix monitoring prod­ucts to form a multi-layer confidence monitor­ing solution for DVB-T transmission systems.
The RFM210 demodulates the COFDM signal
into either SPI or ASI transport stream for­mats.These outputs can go directly into MPEG
protocol monitors, offering an easy, space effi­cient and low cost multi-layer monitoring solu­tion. 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 connec­tion. Broadcasters can use the RFM210 net­work capabilities to monitor multiple transmit­ter 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.

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