The signal analysis comprises 25 video and test line parameters and covers all important levels as well as linear and nonlinear distortions such as 2T K rating, frequency response and hum. The position of the test lines can be freely selected over the entire picture area and in the field blanking interval; storage of up to eight test configurations is possible.
Thanks to its variable integration time, the UAF can be adapted to all test conditions. Using the shortest integration time of less than 1 s, the UAF is ideal for all alignments, be it in the studio or in production. In the case of very noisy VTR signals, on long transmission links or at the end of a long line of transposers, increasing the integration time to 2.5, 5 or 10 s always yields stable results.
For measurements in the field, on cable networks or at inaccessible points in transmitters, it is not necessary to bring along a computer or printer to log data. Using a plug-in memory card, customerdefined test and data-logging programs can be loaded and the test results also stored on the card.
Moreover, the memory card permits storage of complete instrument setups: limit values, test parameter definitions, filter settings in the case of noise voltage measurements as well as line numbers of the eight test configurations. Thus any measurement can be reproduced.
For use in quality and production control of video recorders, the UAF also handles the S-VHS component signals Y/C.
Distorted test signals due to jitter or head switchover for instance do not affect the operation of the UAF.