diff --git a/routes/tscm.py b/routes/tscm.py
index 29719f1..5897817 100644
--- a/routes/tscm.py
+++ b/routes/tscm.py
@@ -1022,10 +1022,36 @@ def _scan_rf_signals(sdr_device: int | None, duration: int = 30) -> list[dict]:
rtl_power_path = shutil.which('rtl_power')
if not rtl_power_path:
logger.warning("rtl_power not found in PATH, RF scanning unavailable")
+ _emit_event('rf_status', {
+ 'status': 'error',
+ 'message': 'rtl_power not installed. Install rtl-sdr package for RF scanning.',
+ })
return signals
logger.info(f"Found rtl_power at: {rtl_power_path}")
+ # Test if RTL-SDR device is accessible
+ rtl_test_path = shutil.which('rtl_test')
+ if rtl_test_path:
+ try:
+ test_result = subprocess.run(
+ [rtl_test_path, '-t'],
+ capture_output=True,
+ text=True,
+ timeout=5
+ )
+ if 'No supported devices found' in test_result.stderr or test_result.returncode != 0:
+ logger.warning("No RTL-SDR device found")
+ _emit_event('rf_status', {
+ 'status': 'error',
+ 'message': 'No RTL-SDR device connected. Connect an RTL-SDR dongle for RF scanning.',
+ })
+ return signals
+ except subprocess.TimeoutExpired:
+ pass # Device might be busy, continue anyway
+ except Exception as e:
+ logger.debug(f"rtl_test check failed: {e}")
+
# Define frequency bands to scan (in Hz) - focus on common bug frequencies
# Format: (start_freq, end_freq, bin_size, description)
scan_bands = [
@@ -1089,12 +1115,12 @@ def _scan_rf_signals(sdr_device: int | None, duration: int = 30) -> list[dict]:
hz_step = float(parts[4])
db_values = [float(x) for x in parts[6:] if x.strip()]
- # Find peaks above noise floor (typically -60 dBm is strong)
+ # Find peaks above noise floor
noise_floor = sum(db_values) / len(db_values) if db_values else -100
- threshold = noise_floor + 15 # Signal must be 15dB above noise
+ threshold = noise_floor + 10 # Signal must be 10dB above noise
for idx, db in enumerate(db_values):
- if db > threshold and db > -50: # Strong signal
+ if db > threshold and db > -70: # Detect signals above -70dBm
freq_hz = hz_low + (idx * hz_step)
freq_mhz = freq_hz / 1000000
@@ -1282,7 +1308,7 @@ def _run_sweep(
logger.error(f"Bluetooth scan error: {e}")
# Perform RF scan using SDR
- if rf_enabled and sdr_device is not None and (current_time - last_rf_scan) >= rf_scan_interval:
+ if rf_enabled and (current_time - last_rf_scan) >= rf_scan_interval:
try:
_emit_event('sweep_progress', {
'progress': min(100, int(((current_time - start_time) / duration) * 100)),
@@ -1291,7 +1317,16 @@ def _run_sweep(
'bt_count': len(all_bt),
'rf_count': len(all_rf),
})
+ # Try RF scan even if sdr_device is None (will use device 0)
rf_signals = _scan_rf_signals(sdr_device)
+
+ # If no signals and this is first RF scan, send info event
+ if not rf_signals and last_rf_scan == 0:
+ _emit_event('rf_status', {
+ 'status': 'no_signals',
+ 'message': 'RF scan completed but no signals detected. Check RTL-SDR connection.',
+ })
+
for signal in rf_signals:
freq_key = f"{signal['frequency']:.3f}"
if freq_key not in [f"{s['frequency']:.3f}" for s in all_rf]:
diff --git a/templates/index.html b/templates/index.html
index d9606c8..e954d4f 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -2061,6 +2061,20 @@
.classification-indicator {
margin-right: 6px;
}
+ .tscm-status-message {
+ padding: 12px;
+ background: rgba(255, 153, 51, 0.15);
+ border: 1px solid rgba(255, 153, 51, 0.3);
+ border-radius: 6px;
+ color: var(--text-primary);
+ font-size: 12px;
+ display: flex;
+ align-items: center;
+ gap: 8px;
+ }
+ .tscm-status-message .status-icon {
+ font-size: 16px;
+ }
.tscm-device-reasons {
font-size: 10px;
color: var(--text-secondary);
@@ -10189,6 +10203,7 @@
tscmWifiDevices = [];
tscmBtDevices = [];
tscmRfSignals = [];
+ tscmRfStatusMessage = null;
updateTscmDisplays();
// Start SSE stream
@@ -10281,6 +10296,9 @@
case 'rf_signal':
addTscmRfSignal(data);
break;
+ case 'rf_status':
+ handleRfStatus(data);
+ break;
case 'threat_detected':
addTscmThreat(data);
break;
@@ -10331,7 +10349,11 @@
}
let tscmRfSignals = [];
+ let tscmRfStatusMessage = null;
+
function addTscmRfSignal(signal) {
+ // Clear any error message since we're receiving signals
+ tscmRfStatusMessage = null;
// Check if already exists (within 0.1 MHz)
const exists = tscmRfSignals.some(s => Math.abs(s.frequency - signal.frequency) < 0.1);
if (!exists) {
@@ -10345,6 +10367,26 @@
}
}
+ function handleRfStatus(data) {
+ // Store status message to display in RF panel
+ tscmRfStatusMessage = data.message;
+ updateRfDisplay();
+ }
+
+ function updateRfDisplay() {
+ const rfList = document.getElementById('tscmRfList');
+ if (!rfList) return;
+
+ if (tscmRfSignals.length === 0) {
+ if (tscmRfStatusMessage) {
+ rfList.innerHTML = `⚠️ ${escapeHtml(tscmRfStatusMessage)}
`;
+ } else {
+ rfList.innerHTML = 'No RF signals detected
';
+ }
+ }
+ // If there are signals, updateTscmDisplays() will handle the display
+ }
+
// Track high-interest devices for the threats panel
let tscmHighInterestDevices = [];
function addHighInterestDevice(device, protocol) {
@@ -10780,7 +10822,11 @@
// Update RF list
const rfList = document.getElementById('tscmRfList');
if (tscmRfSignals.length === 0) {
- rfList.innerHTML = 'No RF signals detected
';
+ if (tscmRfStatusMessage) {
+ rfList.innerHTML = `⚠️ ${escapeHtml(tscmRfStatusMessage)}
`;
+ } else {
+ rfList.innerHTML = 'No RF signals detected
';
+ }
} else {
// Sort by score (highest first)
const sorted = [...tscmRfSignals].sort((a, b) => (b.score || 0) - (a.score || 0));