Triplett 2000 - Manual (Page 9)

Page 9
2.1.2 Peak Follow
This function is similar to Peak Hold, except the peak measurement
will follow the peak level automatically, even if it is decreasing. This
permits easier adjustment of peak levels. No averaging is performed,
so if the peak level is varying, the Pointer will follow it.
WARNING: The 2000 Series Type 3 will continue to read out the
value of the last captured measurement, even after the signal has
been removed. The value will continue to be read out until a new
signal is captured or the Test Set is reset by changing the setting of
the Code Function switch or the Range switch.
2.1.3 Rate
This function directly measures the rate of the signal. The result is
displayed on the CODE RATE scale. Only after two readings are
taken and found to be close together, does the Pointer deflect. It
may require up to eight seconds for the reading to be updated if the
rate changes. This reduces the possibility that noise may cause a
false rate indication. Also, the peak signal level must be at least
10% of full scale for the measurement to be made. The rate of the
highest level signal of either polarity is displayed.
2.1.4 On Time
This mode is similar to the Rate function, except the percentage of
time that the signal is on is displayed. The on time is read using the
"%" scale. Nominal Code Rate is 50% duty cycle.