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Tektronix 2715 cable tv spectrum analyzer digital test
Tektronix 2715 Cable TV Spectrum Analyzer
Don't miss your chance to own this great item at a fraction of the original cost! Unit is in good physical shape with normal usage scratches & scuffs. I'm not very familiar with these units but was able to power it on and everything appears to be working. The screen is a little fuzzy, I am not sure if that is adjustable or not. Unfortunately I am unable to fully test this item due to lack of compatible equipment.
The 2715 Cable TV Spectrum Analyzer now includes automated tests for both analog and digitally-modulated channels. When you are ready to begin installing digital transmission of video, data or voice, the 2715 is ready to help.
Now you can make more proof of performance and other cable system measurements without disruption of service to subscribers. And you can minimize the inconvenience of making measurements at the output of set-top converters. The 2715 provides accurate and automated measurement of carrier-to-noise, in-channel response and coherent distortion signals as well as carrier levels, frequencies and more . . . without removal of video carriers or modulation. In-service measurement of CTB requires an unoccupied channel adjacent to the test channel.
Characterize Your Digital Channels
Channel averaged power, noise and distortions on digitally modulated channels can all be measured by the 2715. It's important to understand the performance of each of the digital channels in your system as well as their interaction with your analog channels. Both broadband random noise-like distortions and coherent distortions - plus noise - can be measured. They all can degrade the bit-error-rate behavior of your digital signals. The 2715 includes digital channel averaged power, desired-to-undesired signal power ratio (D/U) and CTB/CSO measurement. You also can verify the spectral occupancy of your digital modulators with an adjacent channel leakage (ACL) measurement. The distortion and noise measurements require a brief removal of the digital signal. You get all this capability in a 23.5 lb., compact, easy-to-carry package . . . at an attractive price. All of the common cable system spectral measurements are built in and menu-selectable including those needed to address field FCC proof of performance requirements.
What used to be complicated measurement procedures, even for engineering, are now push-button simple. Technicians can easily perform extensive cable system analysis and data collection in the field, all automatically.
Measurements and data collection can also be done remotely under computer control. Or the 2715 can be left unattended to run automatic measurements and data collection initiated by the built-in real-time clock. Data collected in the field can be transferred from the 2715's memory via an RS-232 or GPIB interface to a PC.
Quick, Repeatable, Automated Measurements
The 2715 contains the following measurements and capabilities in its cable TV (CATV/APPL) application menu:
Direct channel tuning and automatic positioning of visual and aural carriers
Visual and aural carrier level and frequency measurement
Survey of system visual and aural carrier levels and frequencies
Depth of modulation adjustment and measurement
Aural carrier FM deviation adjustment and measurement
Visual carrier-to-noise measurement
In-channel response measurement
Hum/low-frequency disturbance measurement
View baseband modulation (field and line) and view picture
Aural carrier demodulation (listen mode)
Intermodulation distortion measurement (CTB and CSO)
(applicable to QAM, QPSK, QPR, 8VSB and OFDM signals)
Desired-to-undesired signal power ratio (D/U)
Adjacent channel leakage (ACL)
Direct channel tuning and automatic positioning of digital signal
Survey of system digital channel levels
Measurements selected from the menu are automatically executed and the results are displayed on the CRT screen. Not only are complex measurements reduced to push-button simplicity for less-experienced spectrum analyzer users, but measurement repeatability is high.
Measurement results can be output to a printer or plotter connected directly to the 2715's interface port. Results can also be automatically stored in the 2715's nonvolatile memory for later transfer to a PC. This, along with high portability, makes the 2715 ideal as an automatic data collection tool in the field for engineers and technicians alike.
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