Freedom R8100 SERIES, Operator'S Manual

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Deviation Average
The Bar Graph display can be adjusted to smooth the response using horizontal submenu selections
activated with the Deviation Average soft key on the vertical menu. The Deviation Average settings are:
Normal – No smoothing is engaged, which provides the quickest measurement response.
Peak Average – The deviation peaks are averaged over a time window which smoothes the reading but
slows the response.
Pwr-Weight Average – The deviation measurement is processed with an RMS converter, but the display
calibration remains in peak units – i.e. a deviation of 3 kHz pk will read 3 kHz on the numeric readout and
bar graph. This type of processing significantly reduces the effect of narrow deviation spikes and noise
while providing a speed of response similar to the normal mode. Note: Scale calibration and the peak
readings are only valid for single tone repetitive sine wave modulation. For the RMS value of any
modulation waveform divide the displayed peak reading by 1.414.
RMS Average – The deviation measurement is the square root of the mean of the squares of the deviation
values. This type of processing significantly reduces the effect of narrow deviation spikes and noise while
providing a speed of response similar to the normal mode. Note: Scale calibration and the RMS readings
are valid for any wave modulation (e.g. sawtooth).
2.2.4.5 General Sequence settings (appears when General Sequence is selected in Meter Zone)
Decode to Standard
Choose which SelCall (Selective Calling) tone standard is used to display the code symbols associated
with the frequency and duration of decoded sequential audio tone bursts. Select using the Up/Down (▲▼)
keys or rotating the spin knob, then press Enter. If “None” is selected the decoder assigns sequential codes
1 through 20 for each successive tone. Otherwise the codes are matched to the frequencies decoded per
the following standards: CCIR1; CCIR2; PCCIR; CCITT; EEA; EIA; Euro; NATEL; MODAT; ZVEI1;
ZVEI2; ZVEI3; PZVEI; DVZEI; PDZVEI (see Figure 3.2.5.5-1). Note: For correct operation, input tones
should have a duration of 0.5 seconds or less.