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Narrow detection bandwidth to avoid adjacent-channel interference #973

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Jan 3, 2025
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Narrow detection bandwidth to avoid adjacent-channel interference #973

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8 changes: 1 addition & 7 deletions auto_rx/autorx/scan.py
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Original file line number Diff line number Diff line change
Expand Up @@ -288,13 +288,7 @@ def detect_sonde(
_if_bw = 64
else:
_iq_bw = 48000
_if_bw = 20

# Try and avoid the RTLSDR 403.2 MHz spur.
# Note that this is only goign to work if we are detecting on 403.210 or 403.190 MHz.
if (abs(403200000 - frequency) < 20000) and (sdr_type == "RTLSDR"):
logging.debug("Scanner - Narrowing detection IF BW to avoid RTLSDR spur.")
_if_bw = 15
_if_bw = 15

else:
# 1680 MHz sondes
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