B1.8 T855 General Information M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IF Amplifiers:
Frequencies … 45MHz and 455kHz
Bandwidths
Narrow Bandwidth (NB) … 7.5kHz
Mid Bandwidth (MB) … 12kHz
Wide Bandwidth (WB) … 15kHz
Sensitivity (De-emphasised Response):
Single Channel … –117dBm
Bandspread (12dB Sinad) … –115dBm (across switching range)
Sensitivity (Flat Response):
Single Channel … –111dBm
Bandspread (12dB Sinad) … –109dBm (across switching range)
Signal+Noise To Noise Ratio (Typical):
De-emphasised Flat
RF Level –107dBm … 30dB (WB) 20dB (WB)
25dB (NB) 15dB (NB)
RF Level –83dBm (CEPT) … 54dB (MB) 49dB (MB)
50dB (NB) 45dB (NB)
RF Level –57dBm (EIA) … 55dB (WB) 55dB (WB)
Selectivity:
Narrow Bandwidth (±12.5kHz) … 83dB minimum, 85dB typical (CEPT)
Mid Bandwidth (±20kHz) … 87dB minimum, 90dB typical (CEPT)
Wide Bandwidth (±25kHz) … 87dB minimum, 90dB typical (CEPT)
Offset Selectivity (Canada only) … 20dB
Spurious Response Attenuation … 100dB (typical)
Intermodulation Response Attenuation:
Narrow Bandwidth … 80dB CEPT (typical)
Mid Bandwidth … 75dB CEPT (typical)
Wide Bandwidth … 85dB EIA (typical)
Blocking … 100dB
Co-channel Rejection … 6dB
Amplitude Characteristic … 3dB
Spurious Emissions:
Conducted … –90dBm to 4GHz
Radiated … –57dBm to 1GHz
–47dBm to 4GHz
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