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Si477x-EVB
5.6. AM Receive Mode
Initialize the receiver as described in Section “4.2. Initialization”, selecting AM mode. The Tuner panel will appear
as shown in Figure 21. “AM Tuner Window”.
Figure 21. AM Tuner Window
1/2. Frequency Numerical Window/Slider: Use to set the receiver frequency. This also acts as an indicator
for receive frequencies selected by seek or preset features. Note that frequency resolution is set by the
Band and Spacing properties of the tuner via the Properties window.
3. Tuning Increment/Decrement: Adjusts receiver frequency in increments set by the Spacing property.
4. Seek: Executes tuner Seek command as configured by the applicable Seek/Tune properties.
5. Auto Scan: Executes sequential tuner Seek commands to cover the entire band. Valid stations are
denoted beneath the tuner by red tick marks. Clicking the To Presets button automatically populates the
presets with the strongest twelve stations found.
6. Presets: Each Preset button stores frequencies for convenient recall. Frequencies may be either
automatically programmed using the Auto Scan as described above or may be manually set by selecting a
frequency and holding the desired button until the frequency is memorized.
7. Volume/Mute: Sets the audio L/R output volume. The Mute button engages the AUDIO_MUTE property
for both channels.
Note: Volume must be set to maximum (63) for all performance tests.
Rev. 0.4
17
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