Tektronix VM-700
Almost nothing is documented about the Tektronix VM-700 outside the cable-television trade press. It appears to have been a laboratory automatic video measurement system, not a consumer product. Communications-Technology (March 1994, p.137) described a test setup in which a Rohde & Schwarz precision demodulator fed a VM-700. The VM-700 then measured video distortion and in-channel frequency response with a Sin X/X test signal. The same report logged a Channel 6 carrier at 83.99933 MHz in one cable frequency plan and 85.24932 MHz under IRC.
Beyond that one documented use, essentially nothing is recorded. No production years, no price and no specification sheet have surfaced.
- Type: automatic video measurement system
- Used for post-demodulation measurement of CATV video signals
- Measured parameters included video distortion and in-channel frequency response
- Test signal: Sin X/X
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