time t
3
, when a yet higher input value is detected, and the channel
begins once more to track the input upwards to a yet higher peak
(P
2
).
Fig. 16 shows the capture of successively lower-valued signal
maxima. Here, it is necessary to
reset
the "+PEAK" channel—to
get it "back on track," so to speak—somewhere along the rise of
the input toward the second, lower-valued peak (P
2
). This is done
by returning the "+PEAK" channel
momentarily
to "TRACK" mode
at time t
2
.
3. "–PEAK" Capture: PKN
Control of your 4077's "–PEAK" channel (No. 3) is strictly
analogous to that of the "+PEAK" channel, explained above. Thus,
Channel 3 can be made to "track" the ANALOG INPUT CHANNEL
1 either by entering a PEAK NEGATIVE (PKN) command of
PKN = TRK [CR]
Analog Peak Capture App. G
G.4
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