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feat(gain): normalize gain controls across modes

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- Pager and sensor gain inputs changed from unvalidated text fields to
  number inputs with min/max/step constraints
- ADS-B dashboard now exposes a gain input in the tracking strip;
  previously gain was hardcoded to 40 dB with no user control
- validate_gain() ceiling raised from 50 to 102 dB to support HackRF
  (LNA 40 + VGA 62 = 102 dB combined) and LimeSDR (73 dB)
- sdrCapabilities gain_max values corrected: HackRF 62→102, Airspy 21→45
- onSDRTypeChanged() now propagates gain_max to all mode gain inputs so
  HTML constraints match the selected SDR's actual range

Closes #162
This commit is contained in:
James Smith
2026-04-05 16:02:03 +01:00
parent 3ed4313854
commit 50de9a9932
5 changed files with 22 additions and 7 deletions
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templates/index.html
+8 -2
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@@ -6095,8 +6095,8 @@
'rtlsdr': { name: 'RTL-SDR', freq_min: 24, freq_max: 1766, gain_min: 0, gain_max: 50 },
'sdrplay': { name: 'SDRplay', freq_min: 0.001, freq_max: 2000, gain_min: 0, gain_max: 59 },
'limesdr': { name: 'LimeSDR', freq_min: 0.1, freq_max: 3800, gain_min: 0, gain_max: 73 },
'hackrf': { name: 'HackRF', freq_min: 1, freq_max: 6000, gain_min: 0, gain_max: 62 },
'airspy': { name: 'Airspy', freq_min: 24, freq_max: 1800, gain_min: 0, gain_max: 21 }
'hackrf': { name: 'HackRF', freq_min: 1, freq_max: 6000, gain_min: 0, gain_max: 102 }, // LNA(40)+VGA(62)
'airspy': { name: 'Airspy', freq_min: 24, freq_max: 1800, gain_min: 0, gain_max: 45 } // LNA(15)+Mix(15)+VGA(15)
};
// Current device list with SDR type info
@@ -6225,6 +6225,12 @@
if (caps) {
document.getElementById('capFreqRange').textContent = `${caps.freq_min}-${caps.freq_max} MHz`;
document.getElementById('capGainRange').textContent = `${caps.gain_min}-${caps.gain_max} dB`;
// Update max attribute on all mode gain inputs so constraints match the SDR
const gainMax = caps.gain_max;
['gain', 'sensorGain', 'aisGainInput', 'acarsGainInput', 'aprsStripGain', 'weatherSatGain'].forEach(id => {
const el = document.getElementById(id);
if (el) el.max = gainMax;
});
}
}