Freedom R8100 SERIES, Руководство оператора

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Figure 2.2.5.4-4 2-Tone Decode screen
5/6 Tone Decode – Decodes the 5/6 tone sequential paging format (Figure 2.2.5.4-5). The meter displays
a table with the decoded cap code along with the individual tone frequencies and durations. A vertical
submenu allows selection of the meter sensitivity from MIN to MAX via the spin knob, Up/Down (▲▼)
keys, or repeated presses of the Sensitivity soft key. A vertical submenu provides adjustment of the Low
and High Pass filters to reduce noise for more accurate measurements. Recommended filter settings for
5/6 Tone: HP= 1 Hz; LP = 3 kHz.
Figure 2.2.5.4-5 5/6-Tone Decode screen
General Sequence – Decodes the individual frequency and time duration for each of up to 20 tones in a
tone sequence. This function overwrites the entire Display Zone section of the main screen and provides
a detailed display of data (Figure 2.2.5.4-6). A vertical submenu provides adjustment of the Low and
High Pass filters to reduce noise for more accurate measurements, an Input Decoding selection key to
select internal or external decoding, a Decode key with start and stop settings to control the decode
function, and a selection window to choose the SelCall standard (or none) used for decoding.
When a standard is selected the decoded tones are mapped to the selected standard and the Tone Code is
listed with each tone in the table. When no standard is selected the decoded tones are listed in numerical
order. The recommended filter settings on the R8100 are: HP= 1 Hz; LP = 3 kHz. Note: For correct
operation input tones should have a duration of 0.5 seconds or less.