Frequency Response
±0.5dB, 20Hz-15kHz
Stereo Separation
55dB, 50Hz-15kHz (typically 60-70dB)
Noise
Better than 75dB below 100% modulation in baseband and subcarrier. Any “digital” noise components above 54kHz are –70dB or better.
Distortion
<0.5%THD in baseband and subcarrier at 95% modulation with processing engaged.
Crosstalk (M/S or S/M)
Nonlinear crosstalk is better than –50dB, 50Hz-15kHz. Linear crosstalk (through processing and filters) is better than –40dB.
Stereo Pilot
19kHz, ±1Hz; adjustable between 6% and 12% relative to 100% modulation.
Active-balanced, bridging; accept program audio levels between –15dBu and +15dBu.
Unbalanced input for SCA or RDS subcarriers at levels between –20dBu and 0dBu for nominal 5-10% injection.
Low-Pass Filtering
7-pole, phase-corrected, active-elliptic LPF with proprietary overshoot compensation.
Pre-Emphasis
75µs or 50µs with jumper selection.
Gated AGC
±10dB capture range with slow (0.5dB/sec.) correction for long-term input level variations.
Compressor/Limiter
Fast peak limiter with secondary “platform” for dynamic range compression. Independent high frequency limiter protects the pre-emphasis characteristic.
Composite Processing
0dB to 3dB adjustable clipping of the baseband prior to pilot and subcarrier insertion.
Composite Output
75-ohm, unbalanced; variable between 1V p-p and 8V p-p, corresponding to 100% modulation.
Sampling Rate
608kHz (16X subcarrier oversampling)
Power Requirements
105-130VAC or 210-255VAC, 50/60Hz; 15W
Size and Weight
1- 3/4” H x 19” W x 7” D (1U); 7 lbs.
