Specifications

1–7
Getting Acquainted
1.3 Transmitter/Exciter Specifications
Frequency Range 87 MHz–108 MHz (65 MHz–73 MHz
optionally available)
RF Power Output 100–550 watts (VSWR 1.5:1 or better)
RF Output Impedance 50
Frequency Stability Meets FCC specifications from
0-50
degrees C
Audio Input Impedance 50 k bridging, balanced, or 600
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 Suppresion 50 dB below ±75 kHz deviation
FM S/N Ratio (FM noise)
Complete transmitter Better than –60 dB
Exciter only Better than –70 dB