forked from sdr/gr-osmosdr
hackrf: select narrower filters in auto bw mode to prevent aliasing
parent
ef37d1caae
commit
656a9a014f
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@ -495,7 +495,7 @@ double hackrf_sink_c::set_sample_rate( double rate )
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ret = hackrf_set_sample_rate( _dev, rate );
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if ( HACKRF_SUCCESS == ret ) {
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_sample_rate = rate;
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set_bandwidth( rate );
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set_bandwidth( 0.0 ); /* bandwidth of 0 means automatic filter selection */
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} else {
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HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_sample_rate", rate ) )
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}
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@ -696,7 +696,7 @@ double hackrf_sink_c::set_bandwidth( double bandwidth, size_t chan )
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// osmosdr::freq_range_t bandwidths = get_bandwidth_range( chan );
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if ( bandwidth == 0.0 ) /* bandwidth of 0 means automatic filter selection */
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bandwidth = _sample_rate;
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bandwidth = _sample_rate * 0.75; /* select narrower filters to prevent aliasing */
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if ( _dev ) {
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/* compute best default value depending on sample rate (auto filter) */
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@ -387,7 +387,7 @@ double hackrf_source_c::set_sample_rate( double rate )
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ret = hackrf_set_sample_rate( _dev, rate );
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if ( HACKRF_SUCCESS == ret ) {
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_sample_rate = rate;
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set_bandwidth( rate );
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set_bandwidth( 0.0 ); /* bandwidth of 0 means automatic filter selection */
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} else {
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HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_sample_rate", rate ) )
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}
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@ -615,7 +615,7 @@ double hackrf_source_c::set_bandwidth( double bandwidth, size_t chan )
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// osmosdr::freq_range_t bandwidths = get_bandwidth_range( chan );
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if ( bandwidth == 0.0 ) /* bandwidth of 0 means automatic filter selection */
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bandwidth = _sample_rate;
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bandwidth = _sample_rate * 0.75; /* select narrower filters to prevent aliasing */
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if ( _dev ) {
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/* compute best default value depending on sample rate (auto filter) */
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