Rev. 1.0
Getting Acquainted
1—7
=
Frequency Range
87.9 -107.9 MHz
RF Power Output
FMX30
FMX100
FMX250
(VSWR 1.5:1 or better)
3-30 watts, adjustable
10-100 watts, adjustable
20-250 watts, adjustable
RF Output Impedance
50
Ω
Frequency Stability
Meets FCC specifications from 0-50
degrees C
Audio Input Impedance
50 k
Ω
bridging, balanced, or 600
Ω
Audio Input Level
Selectable for -10 dBm to +10 dBm for
75 kHz deviation at 400 Hz
Pre-emphasis
Selectable for 25, 50, or 75 µsec; or Flat
Audio Response
Conforms to 75 µsec pre-emphasis curve
as follows
Complete transmitter
±0.30 dB (50 Hz-10 kHz)
±1.0 dB (10 kHz-15 kHz)
Exciter only
±0.25 dB (50 Hz-15 kHz
Distortion (THD + Noise)
Complete transmitter
Less than 0.7% (at 15 kHz)
Exciter only
Less than 0.3% (50 Hz-15 kHz)
Stereo Separation
Complete transmitter
Better than -40 dB (50 Hz-15 kHz)
Exciter only
Better than -40 dB (50 Hz-15 kHz)
Crosstalk
Main into sub, better than -40 dB
Sub into main, better than -40 dB
Stereo Pilot
19 kHz ±2 Hz, 9% modulation
Subcarrier Suppression
50 dB below ±75 kHz deviation
FM S/N Ratio (FM noise)
Complete transmitter
Better than -60 dB
Exciter only
Better than -70 dB
