RESULTS of FM Quieting tests on some FM tuners

ST-SB920

SB920quieting88MHz98MHz107.5MHz
WIDE12dB13.611.48.1 dBV
WIDE20dB14.812.79.4 dBV
WIDE30dB16.717.111.1 dBV
NARROW12dB13.311.28.0 dBV
NARROW20dB14.712.59.2 dBV
NARROW30dB17.515.411.9 dBV

JVC JT-V11G (older model, manual tuning, circa 1978)

JT-V11Gquieting88MHz98MHz107.5MHz
 12dB9.510.020 dBV
 20dB11.312.322 dBV
 30dB12.513.723 dBV

KT-6040 (modified Filters)

KT-6040quieting88MHz98MHz107.5MHz
WIDE12dB12.511.29.7 dBV
WIDE20dB13.111.910.3 dBV
WIDE30dB14.512.911.4 dBV
NORMAL12dB8.77.25.3 dBV
NORMAL20dB1097 dBV
NORMAL30dB151412 dBV
NARROW12dB8.57.25.0 dBV
NARROW20dB11.610.48.0 dBV
NARROW30dB191816 dBV

JH - July 2008