GitHub/sdrtrunk
1
0
Fork 0
mirror of https://github.com/DSheirer/sdrtrunk.git synced 2026-11-13 17:17:29 -05:00
Code Issues Packages Projects Releases 2 Wiki Activity

Tuner Controller update to better handle automatic center frequency

Browse Source 
calculation when additional channels are allocated.

Incorporates tuner specific definition of overall usable bandwidth, so
that tuners like airspy can specify 90% of 10 MHz (ie 9 MHz) is truly
usable and the fringe 10% is unusable rolloff.

Also includes tuner-specific defining of the width of the central spike,
or a value of 0 indicates that the entire range is usable (ie airspy).
This commit is contained in:
denny
2015-12-12 14:08:32 -05:00
parent 87e70ae0e4
commit 0951277915
10 changed files with 224 additions and 197 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/source/tuner/rtl/e4k/E4KTunerController.java
View File

@@ -44,6 +44,8 @@ public class E4KTunerController extends RTL2832TunerController
public static final long MIN_FREQUENCY = 52000000;
public static final long MAX_FREQUENCY = 2200000000l;
public static final double USABLE_BANDWIDTH_PERCENT = 0.95;
public static final int DC_SPIKE_AVOID_BUFFER = 15000;
/* The local oscillator is defined by whole (integer) units of the oscillator
* frequency and fractional units representing 1/65536th of the oscillator
@@ -115,8 +117,8 @@ public class E4KTunerController extends RTL2832TunerController
ThreadPoolManager threadPoolManager )
throws SourceException
{
super( device, deviceDescriptor, threadPoolManager,
MIN_FREQUENCY, MAX_FREQUENCY );
super( device, deviceDescriptor, threadPoolManager, MIN_FREQUENCY,
MAX_FREQUENCY, DC_SPIKE_AVOID_BUFFER, USABLE_BANDWIDTH_PERCENT );
}
@Override