Timewave DSP-D300, Руководство пользователя

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Select the CFF filters that will be wanted, then choose “Upload” to choose a specific
filter. ONLY ONE FILTER CAN BE USED AT A TIME! Uploading a filter will
replace any filter already uploaded. The check mark shows which filter is currently
uploaded.
Note: Until the first filter is uploaded, the D300 will use a default 2040 center frequency
filter.
Test Data Generator
The Control300 program can generate its own test data. Choose
Tools/Testing/Test Data
or click on the test data generator button ( ).
Figure 18: DSP-D300 Control300 Test Data Generator
The data will be generated to the Test Frequency that is set. The volume is in estimated
dBm, which is what the level would be if the soundcard was playing the audio directly.
Many soundcards attenuate output so this may be 6-12 dB less than estimated.
For IFLOWS test packets, set the Gauge ID for the wanted gauge. Standard IFLOWS
has reversed polarity and standard byte order. Click on the select for IFLOWS.
For a sine wave, click on the select for Sine.
Click on the play ( ). IFLOWS will be generated in BDF format every 1.5 seconds.
A sine wave is continuous.
The test frequency will generate packets or a sine wave at that center frequency. A
non-standard frequency may be typed into the box.
The test volume is the Sound Card wave output level. This ideally should be set at a
calibrated 0 dBm, for many sound cards this is between 10 and 14 estimated dBm.
See
D300 Decoder Test
to determine a calibrated Sound Card dBm.
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