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RE: Keep me posted





First testing after matching levels between deck and software.

I ran two dests, THD and Frequency response, using 7 1/2 ips, normal bias setting, Quantegy 456 tape.

THD hovered around .3% at 400hz which I believe is the only frequency the software can generate for THD test. I did not make a screen shot of that test.

The screen shot here shows frequency response sweep function plot, deck recording in forward direction, so this sums the distortion from recording through playback electronics of the deck. I do not have a calibrated tape yet so I cannot test playback seperately I guess.

Plot is about what I expected based on what I heard from listening to tapes on this unit (decent bass, rolled off highs) and prior to any recording/playback electronic work or head alighnment.

I will look at the SM and see how I can test the different recordng and playback electronics independantly to see where any problems might be. Certainly .3% distortion at 400hz would not be up to spec...



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