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feat(plugins): decode the Southwest H1 position report #554

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Merged
makrsmark merged 4 commits into from
Nov 8, 2026
Merged

feat(plugins): decode the Southwest H1 position report #554

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d28adf4
feat(plugins): decode the Southwest H1 position report
WX4JCW Oct 30, 2026
59fc61d
fix(plugins): decode the Southwest /PR only with its 12 fields, per r…
WX4JCW Oct 30, 2026
8f1ba4c
refactor(plugins): fold the Southwest /PR into processPerformanceData…
WX4JCW Nov 6, 2026
6599aca
docs(plugins): add docstrings to the POS decoders, per review
WX4JCW Nov 6, 2026
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38 changes: 23 additions & 15 deletions lib/plugins/Label_H1_FPN.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,7 @@ describe('Label_H1 FPN', () => {
expect(decodeResult.decoder.decodeLevel).toBe('partial');
expect(decodeResult.raw.message_timestamp).toBe(1708178417);
expect(decodeResult.formatted.description).toBe('Flight Plan');
expect(decodeResult.formatted.items.length).toBe(10);
expect(decodeResult.formatted.items.length).toBe(12);
expect(decodeResult.formatted.items[0].label).toBe('Route Status');
expect(decodeResult.formatted.items[0].value).toBe('Route Planned');
expect(decodeResult.formatted.items[1].label).toBe('Origin');
Expand All @@ -133,18 +133,23 @@ describe('Label_H1 FPN', () => {
expect(decodeResult.formatted.items[3].value).toBe('BAINY3');
expect(decodeResult.formatted.items[4].label).toBe('Approach Procedure');
expect(decodeResult.formatted.items[4].value).toBe('ILS30L(30L)');
expect(decodeResult.formatted.items[5].label).toBe('Altitude');
expect(decodeResult.formatted.items[5].value).toBe('36000 feet');
expect(decodeResult.formatted.items[6].label).toBe('Arrival Runway');
expect(decodeResult.formatted.items[6].value).toBe('30L');
expect(decodeResult.formatted.items[7].label).toBe('Fuel On Board');
expect(decodeResult.formatted.items[7].value).toBe('172');
expect(decodeResult.formatted.items[8].label).toBe(
expect(decodeResult.formatted.items[5].label).toBe('Gross Weight');
expect(decodeResult.formatted.items[5].value).toBe('435600 pounds');
expect(decodeResult.formatted.items[6].label).toBe('Cruise Altitude');
expect(decodeResult.formatted.items[6].value).toBe('36000 feet');
// Amsterdam's transition altitude is 3,000 feet
expect(decodeResult.formatted.items[7].label).toBe('Transition Altitude');
expect(decodeResult.formatted.items[7].value).toBe('3000 feet');
expect(decodeResult.formatted.items[8].label).toBe('Arrival Runway');
expect(decodeResult.formatted.items[8].value).toBe('30L');
expect(decodeResult.formatted.items[9].label).toBe('Fuel On Board');
expect(decodeResult.formatted.items[9].value).toBe('172');
expect(decodeResult.formatted.items[10].label).toBe(
'Estimated Time of Arrival',
);
expect(decodeResult.formatted.items[8].value).toBe('21:51:17');
expect(decodeResult.formatted.items[9].label).toBe('Message Checksum');
expect(decodeResult.formatted.items[9].value).toBe('0x156d');
expect(decodeResult.formatted.items[10].value).toBe('21:51:17');
expect(decodeResult.formatted.items[11].label).toBe('Message Checksum');
expect(decodeResult.formatted.items[11].value).toBe('0x156d');
});

test('decodes Label H1 Preamble FPN with newlines', () => {
Expand Down Expand Up @@ -292,11 +297,14 @@ describe('Label_H1 FPN', () => {
expect(decodeResult.raw.eta_time).toBe(85448);
expect(decodeResult.raw.checksum).toBe(0x47c0);
expect(decodeResult.formatted.description).toBe('Flight Plan');
expect(decodeResult.formatted.items.length).toBe(13);
expect(decodeResult.raw.altitude).toBe(11000);
expect(decodeResult.raw.outside_air_temperature).toBe(-7);
expect(decodeResult.formatted.items.length).toBe(14);
// a flight plan sent before departure: 11,000 feet and ISA there, not where the aircraft is
expect(decodeResult.raw.altitude).toBeUndefined();
expect(decodeResult.raw.cruise_altitude).toBe(11000);
expect(decodeResult.raw.cruise_temperature).toBe(-7);
expect(decodeResult.raw.transition_altitude).toBe(2500);
expect(decodeResult.remaining.text).toBe(
'F37A#M1B/,,,183,7,13,,25,,,P30,M40,36090,13,3455,300',
'F37A#M1B/,,,183,7,13,,,,P30,M40,36090,13,3455,300',
);
});

Expand Down
47 changes: 28 additions & 19 deletions lib/plugins/Label_H1_PER.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -17,16 +17,23 @@ describe('Label_H1 PER', () => {
expect(decodeResult.decoded).toBe(true);
expect(decodeResult.decoder.decodeLevel).toBe('partial');
expect(decodeResult.raw.checksum).toBe(0x2917);
expect(decodeResult.raw.altitude).toBe(32000);
expect(decodeResult.raw.outside_air_temperature).toBe(-53);
expect(decodeResult.formatted.items.length).toBe(3);
expect(decodeResult.formatted.items[0].label).toBe('Altitude');
expect(decodeResult.formatted.items[0].value).toBe('32000 feet');
expect(decodeResult.formatted.items[1].label).toBe(
'Outside Air Temperature (C)',
expect(decodeResult.raw.gross_weight).toBe(133700);
expect(decodeResult.raw.cruise_altitude).toBe(32000);
expect(decodeResult.raw.cruise_temperature).toBe(-53);
expect(decodeResult.raw.transition_altitude).toBe(18000);
expect(decodeResult.formatted.items.length).toBe(5);
expect(decodeResult.formatted.items[0].label).toBe('Gross Weight');
expect(decodeResult.formatted.items[0].value).toBe('133700 pounds');
expect(decodeResult.formatted.items[1].label).toBe('Cruise Altitude');
expect(decodeResult.formatted.items[1].value).toBe('32000 feet');
expect(decodeResult.formatted.items[2].label).toBe(
'Cruise Temperature (C)',
);
expect(decodeResult.formatted.items[1].value).toBe('-53 degrees');
expect(decodeResult.formatted.items[2].label).toBe('Message Checksum');
expect(decodeResult.formatted.items[2].value).toBe('-53 degrees');
expect(decodeResult.formatted.items[3].label).toBe('Transition Altitude');
expect(decodeResult.formatted.items[3].value).toBe('18000 feet');
expect(decodeResult.formatted.items[4].label).toBe('Message Checksum');
expect(decodeResult.remaining.text).toBe('262,222,,60,24,275103,P52,P0');
});

test('long variant', () => {
Expand All @@ -37,18 +44,20 @@ describe('Label_H1 PER', () => {
expect(decodeResult.decoded).toBe(true);
expect(decodeResult.decoder.decodeLevel).toBe('partial');
expect(decodeResult.raw.checksum).toBe(0x388d);
expect(decodeResult.raw.altitude).toBe(34000);
expect(decodeResult.raw.outside_air_temperature).toBe(-56);
expect(decodeResult.formatted.items.length).toBe(3);
expect(decodeResult.formatted.items[0].label).toBe('Altitude');
expect(decodeResult.formatted.items[0].value).toBe('34000 feet');
expect(decodeResult.formatted.items[1].label).toBe(
'Outside Air Temperature (C)',
expect(decodeResult.raw.gross_weight).toBe(121800);
expect(decodeResult.raw.cruise_altitude).toBe(34000);
expect(decodeResult.raw.cruise_temperature).toBe(-56);
expect(decodeResult.raw.transition_altitude).toBe(18000);
expect(decodeResult.formatted.items.length).toBe(5);
expect(decodeResult.formatted.items[1].label).toBe('Cruise Altitude');
expect(decodeResult.formatted.items[1].value).toBe('34000 feet');
expect(decodeResult.formatted.items[2].label).toBe(
'Cruise Temperature (C)',
);
expect(decodeResult.formatted.items[1].value).toBe('-56 degrees');
expect(decodeResult.formatted.items[2].label).toBe('Message Checksum');
expect(decodeResult.formatted.items[2].value).toBe('-56 degrees');
expect(decodeResult.formatted.items[4].label).toBe('Message Checksum');
expect(decodeResult.remaining.text).toBe(
'1218,276,134,,0,68,,180,,,P30,P0,33936,,1084,284',
'276,134,,0,68,,,,P30,P0,33936,,1084,284',
);
});

Expand Down
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