diff options
| author | Dimitri Stolnikov <horiz0n@gmx.net> | 2013-06-09 13:11:32 +0200 |
|---|---|---|
| committer | Dimitri Stolnikov <horiz0n@gmx.net> | 2013-06-09 13:11:32 +0200 |
| commit | e1f4c24232bcad724b3d2146a90e1710c0f04a0b (patch) | |
| tree | c0312029afc645aa67986744ef2018929162883f /lib/hackrf/hackrf_source_c.cc | |
| parent | ed627cea9c47da34c32ec40fe45212c4012c5292 (diff) | |
hackrf: select narrower filters in auto bw mode to prevent aliasing
Diffstat (limited to 'lib/hackrf/hackrf_source_c.cc')
| -rw-r--r-- | lib/hackrf/hackrf_source_c.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/hackrf/hackrf_source_c.cc b/lib/hackrf/hackrf_source_c.cc index 03058cc..ab68c14 100644 --- a/lib/hackrf/hackrf_source_c.cc +++ b/lib/hackrf/hackrf_source_c.cc @@ -387,7 +387,7 @@ double hackrf_source_c::set_sample_rate( double rate ) ret = hackrf_set_sample_rate( _dev, rate ); if ( HACKRF_SUCCESS == ret ) { _sample_rate = rate; - set_bandwidth( rate ); + set_bandwidth( 0.0 ); /* bandwidth of 0 means automatic filter selection */ } else { HACKRF_THROW_ON_ERROR( ret, HACKRF_FUNC_STR( "hackrf_set_sample_rate", rate ) ) } @@ -615,7 +615,7 @@ double hackrf_source_c::set_bandwidth( double bandwidth, size_t chan ) // osmosdr::freq_range_t bandwidths = get_bandwidth_range( chan ); if ( bandwidth == 0.0 ) /* bandwidth of 0 means automatic filter selection */ - bandwidth = _sample_rate; + bandwidth = _sample_rate * 0.75; /* select narrower filters to prevent aliasing */ if ( _dev ) { /* compute best default value depending on sample rate (auto filter) */ |