apps4av/avarehelper

avarehelper

avarehelper

avarehelper

avarehelper's Issues

Port to android studio

Tried importing into android studio and it's complaining about everything.

Please release a new version

The last update on Google Play store was in July 2017. There have been several fixes since then. PR #18 is of particular interest since X-plane sync is barely functional in the best case, and nearly completely useless on networks with high UDP packet loss (e.g. the wifi router provided by my ISP).

The only way I can use Avare reliably with X-plane is to build this project myself.

Negative and 0xFFF pressure altitude not handled properly in Ownship GDL90 message.

avarehelper/app/src/main/java/com/apps4av/avarehelper/gdl90/OwnshipMessage.java

Lines 65 to 82 in be9a716

	int upper = ((int)(msg[10] & 0xFF)) << 4;
	int lower = ((int)(msg[11] & 0xF0)) >> 4;
	int alt = upper + lower;
	if(alt == 0xFFF) {
	mAltitude = -305; // -1000 ft
	}
	else {
	alt *= 25;
	alt -= 1000;
	if(alt < -1000) {
	alt = -1000;
	}
	/*
	* In meters
	*/
	mAltitude = (int)((double)alt / 3.28084);
	}

http://www.faa.gov/nextgen/programs/adsb/wsa/media/GDL90_Public_ICD_RevA.PDF

3.5.1.4 ALTITUDE
The Altitude field "ddd" contains the pressure altitude (referenced to 29.92 inches Hg), encoded using 25-foot resolution, offset by 1,000 feet. The 0xFFF value represents that the pressure altitude is invalid. The minimum altitude that can be represented is -1,000 feet. The maximum valid altitude is +101,350 feet.

Altitude	Value
-1,000 feet	0x000
0 feet	0x028
+1000 feet	0x050
+101,350 feet	0xFFE
Invalid or unavailable	0xFFF

Users reporting disconnect every 5 minutes from ADSB units

Report on iLevil, and on FreeFlight Systems.

TrafficReportMessage not parsing ICAO address properly

I believe line 105 should be:
mIcaoAddress = ((((int)msg[1])&0xFF) << 16) + ((((int)(msg[2]) & 0xFF) << 8)) + ((((int)msg[3]) & 0xFF));

Your version does the bitshift prior to the AND, resulting in only the least significant byte being recorded

Use geometric altitude

https://github.com/apps4av/avarehelper/blob/master/src/com/apps4av/avarehelper/BufferProcessor.java

Right now altitude in position report is reported. It should be geo altitude that should be reported, and if not available, ownship altitude.