Radio Specifications to Narrowband Standards Comparison

Radio Specifications
NTIA Narrowband Standards
Manufacturer E.F. Johnson
Model 53ES Series
Radio Type Mobile
Narrowband Compliant Yes
Freq Stability 1.5 PPM 2.5  PPM
TX Unwanted Emissions 75 dB 50+10LOG(Pz) or 70 dB whichever is less
RX Adjacent Chan Selectivity 63 dB 45  dB
RX Intermod Rejection 75 dB 75  dB
RX Spurious Rejection 75 dB 75  dB
RX Conducted Spurious Emissions - 57 dBm -57  dB
Remarks Advanced model, many additional features over 5300 series. FIPS-compliant encryption available. 

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