Measurement Set 8VSB RFA300A Features & Benefits Interactive and Automated Measurements Proprietary Nonlinearity Measurement Two Switchable RF Inputs User Programmable Limits Mask Proprietary In-service Phase Noise Measurement One Touch Operation Applications 8VSB Transmitter Installation Continuous Monitoring with Limits Checking Repair and Maintenance The Tektronix RFA300A provides fast, easy and effi- Measurements and Graphic Displays cient solutions for 8VSB RF measurement needs while delivering the measurement accuracy and ease of use you’ve come to expect from Tektronix. The range of capabilities offered by the RFA300A includes all measurement functions required to install, operate and maintain an 8VSB transmitter. The RFA300A brings the heritage of the Tektronix VM700 to RF measurements for 8VSB DTV transmitters. The RFA300A provides a suite of measurements that permit the user to examine or Signal/Noise Ratio, Error Vector Magnitude, measure important DTV parameters including con- Complex Modulation Error Ratio, Pilot Amplitude stellation, eye diagram, peak to average power Error with Constellation Display and Eye Diagram Graphics. ratio, linear errors and non-linear distortion. Measurement displays provide numeric data aug- Signal/Noise, the ratio of the ideal real axis signal mented with easy to interpret graphics which allow power to all other contributions (noise, distortion, the operator to visually determine operational per- etc.), is an all-in-one quality measurement of the formance of the transmitter. 8VSB signal. Error Vector Magnitude is the square The RFA300A can measure individual operating root of the mean complex relative noise power parameters or provide continuous monitoring of divided by the real (in-phase) part of the outermost transmitter operation with notification if user-selec- constellation state. Modulation Error Ratio is a com- table limits are violated. 1 • • RF Modulation Digital Video Receivers www.tektronix.com/Measurement/video_audio/ Measurement Set 8VSB RFA300A plex form of the Signal/Noise measurement, which is made by including quadrature channel informa- tion in the ideal and error signal computations. Out-of-channel emissions are spectral power vs. frequency measurements similar to those made by a spectrum analyzer. The measurement is made and scaled in accordance with the complex, FCC speci- fied method. The RFA300A measures to >–80 dB on the FCC scale. Transmitter Frequency Response Error measure- Out-of-channel Power to Average Power with Nonlinear Distortion Measurements with Graphs Spectral Display. of Amplitude Error vs. Ideal Signal Amplitude and ments are plots of the transmitter’s spectral ampli- Signal Phase Error vs. Ideal Signal Amplitude. tude vs. frequency with respect to the ideal 8VSB root-cosine transmitter curve. Transmitter Group Delay Error measurements are plots of the transmitter’s group delay response as a function of frequency. Amplitude Error is the difference between the trans- mitter’s actual vs. its ideal instantaneous output amplitude. This difference is plotted vs. the ideal instantaneous signal amplitude, resulting in a dis- play of the transmitter’s dynamic power linearity. Phase Error similarly plots the carrier’s phase angle Frequency Response and Group Delay Integrated Phase Jitter with display of Noise Measurements with Graphical Displays of Errors. Power Spectral Density. error as a function of instantaneous signal ampli- tude. These nonlinear distortion measurements are trol is by mouse, a VM700-like touch screen, front unique to the RFA300A. panel buttons and knob or by keyboard entry. Key The In-service Phase Noise measurement displays parameters and measured values are displayed in the transmitter’s Phase Noise characteristics. easy to read form, both numerically (in large text Normally only available as an out-of-service meas- and graphically). urement, in-service phase noise is an RFA300A proprietary measurement. Signal Monitor Mode Peak to Average power ratio displays the statistical – Unattended monitoring of 8VSB signals amplitude distribution of the transmitter’s signal. It – User-specified limits (Two levels, Caution and is another way of determining the transmitter’s Alarm) Peak to Average Power and Actual-to-ideal power linearity. Difference with Cumulative Distribution of Peak – Notification when limits or masks are exceeded Power and Channel Spectrum Graphics. – Notification to control point or local (Dry Contact Simple Operation Closure) Operation of the RFA300A is extremely user- Remote measurement and control friendly. No detailed 8VSB knowledge is required to make accurate measurements. The high-resolution – pcANYWHERE (not included) color display provides a clear view of measurement Printing results and waveforms. A VGA output is also pro- ® – All devices supported by Windows NT (serial or vided to drive an external monitor. Instrument con- parallel) 2 RF Modulation • Digital Video Receivers • www.tektronix.com/Measurement/video_audio/ Measurement Set 8VSB RFA300A General Characteristics Characteristics Ordering Information Environmental RF Section RFA300A Temperature – Tuning Range – Channels 7 to 69 (174 to 806 MHz). Measurement Set 8VSB. Operating: 0°C to +45°C (32°F to 113°F). RF Sensitivity – Nonoperating: –20°C to +60°C (–4°F to 140°F). Includes: User Manual, Power Cord, Keyboard, Mouse, +10 to +33 dBm with external 10 dB attenuator. Humidity: 20% to 80% noncondensing. Front Cover, Back up Software. 0 to +30 dBm without external 10 dB attenuator. Altitude – International Power Plugs Return Loss – >25 dB. Operating: 10,000 ft. (Temp derated above 5,000 ft.). Opt. A1 – Universal Euro 220 V, 50 Hz. Nonoperating: 40,000 ft. Input Impedance – 50 Ω. Opt. A2 – UK 240 V, 50 Hz. Input Connector – Type N. Dimensions mm in. Opt. A4 – North American 240 V, 60 Hz. Specifications Height 216 8.5 Opt. 1R – Rackmount Kit. Signal to Noise Accuracy – ≤±1 dB. Width 432 17.0 Opt. R3 – Three-year Warranty Extension. Depth 559 22.0 Residual Signal to Noise – ≥40 dB. Optional Accessories Weight kg lbs. Error Vector Magnitude Accuracy – ≤±12% of actual Net 17.2 38.0 Protective Cover – 200-4408-00. value. Modulation Error Ratio Accuracy – ≤±1 dB. Power Source Power – Adjacent Channel Residual Noise Floor – ≤–80 dB Voltage Range: 95 to 250 V. on the FCC scale. Line Frequency: 47 to 63 Hz. Frequency Response Accuracy – ≤±(0.25 + .05 x Current: 6 A max, 1.9 A typical. p-p reading) dB. Group Delay Accuracy – ≤±(4 + 0.2 x p-p reading) ns. Pilot Amplitude Accuracy – ≤±(0.1 + 0.2 x reading) dB. Amplitude Error – ≤±(0.1 + 0.2 x reading) dB. Phase Error – ≤±(5 + 0.2 x reading) degrees. Out-of-channel Spectrum Accuracy – ≤±2 dB over a frequency range of 18 or 30 MHz. • • 3 RF Modulation Digital Video Receivers www.tektronix.com/Measurement/video_audio/ Measurement Set 8VSB RFA300A Contact Tektronix: ASEAN Countries (65) 356-3900 Australia & New Zealand 61 (2) 9888-0100 Austria, Central Eastern Europe, Greece, Turkey, Malta & Cyprus +43 2236 8092 0 Belgium +32 (2) 715 89 70 Brazil and South America 55 (11) 3741-8360 Canada 1 (800) 661-5625 Denmark +45 (44) 850 700 Finland +358 (9) 4783 400 France & North Africa +33 1 69 86 81 81 Germany +49 (221) 94 77 400 Hong Kong (852) 2585-6688 India (91) 80-2275577 Italy +39 (2) 25086 501 Japan (Sony/Tektronix Corporation) 81 (3) 3448-3111 Mexico, Central America, & Caribbean 52 (5) 666-6333 The Netherlands +31 23 56 95555 Norway +47 22 07 07 00 People’s Republic of China 86 (10) 6235 1230 Republic of Korea 82 (2) 528-5299 South Africa (27 11) 651-5222 Spain & Portugal +34 91 372 6000 Sweden +46 8 477 65 00 Switzerland +41 (41) 729 36 40 Taiwan 886 (2) 2722-9622 United Kingdom & Eire +44 (0)1344 392000 USA 1 (800) 426-2200 For other areas, contact: Tektronix, Inc. Export Sales, P.O. Box 500, M/S 50-255, Beaverton, Oregon 97077-0001, USA 1 (503) 627-1916 For the most up-to-date product information visit our web site at www.tektronix.com Copyright © 2000, Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publi- cation supersedes that in all previously published material. Specification and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. All other trade names referenced are the service marks, trademarks or registered trademarks of their respective companies. 06/00 HB/XBS 25W-12666-2 • • 4 RF Modulation Digital Video Receivers www.tektronix.com/Measurement/video_audio/