microHAM SMORF, Manual

Page: 28 / 76

micro HAM © 2015 All rights reserved
•
AVERAGE
Uses averaged value from samples captured for one display point. This choice should be used when
smoothness of provided waveform is more important than peaks.
•
MIN-MAX
It is a special acquisition type providing two waveforms on display. Lower is related to minimal value
of the measured signal, higher to peak value of measured signal. This choice is useful to visualize
noise or hum on measured signal.
Oscilloscope uses peak samples from A/D convertor incoming at fixed rate of 125 thousands samples per
second. For easier to use decade ranges, low ranges or advanced acquisitions, scope uses real time decimation
and interpolation operations. Therefore minimal and maximal horizontal (timebase) ranges are the same for all
acquisition types.
2. TRIGGER EDGE defines triggering condition.
•
FWD RISING, rising edge of the Forward power
•
FWD FALLING, falling edge of the Forward power
•
IN RISING, logical rising edge (PTT activated) of the PTT IN input
•
IN FALLING, logical falling edge (PTT deactivated) of the PTT IN input
Both IN rising and falling edges includes 0.5ms software debouncing as IN input is usually driven by
mechanical contact. Processing latency adds additional 0.2ms.
28