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802Ex FM/HD Digital Exciter  
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Specifications-- 802Ex FM/HD Digital Exciter

ELECTRICAL

RF Power Output
5 to 50 W, adjustable in 0.1 watt increments.

Power Factor
0.98 or better.

Harmonic and Spurious Output
2nd Harmonic: > 40 dB below sub-carrier;
3rd Harmonic: > 45 dB below sub-carrier;
All other components: 50 Hz to 100 kHz:
better than 80 dB below sub-carrier.

Frequency Range
87.5 to 108 MHZ in 10 kHz steps.

Frequency Control & Stability
Phase-Locked Loop (PLL) controlled.
150 Hz, over +32 to +122 degrees F
(0 to +50 degrees C) temperature range.

Modulation Type
Direct-to-channel digitally generated FM
from LVDS input signals to Analog FM only
or HD Radio + FM.

Modulation Capability
Greater than 300 kHz.

Asynchronous AM S/N
80dB below rated power reference carrier
with 100% AM modulation at 400Hz,
75 uS de-emphasis (no FM modulation present).

Synchronous AM S/N
60dB below rated power, reference 100%
amplitude modulation at 400Hz,
75 µs de-emphasis (FM deviation +/-75kHz
by a 1 kHz sine wave).

Input Power
100-240 Vac; 47-63 Hz; 250 W maximum;
universal voltage input; no voltage range
Switching required.

 

COMPOSITE OPERATION

Composite Input
Balanced or unbalanced.

Impedance
10 k ohms or 75 ohms 5 %.

Level
3.5 V peak-to-peak for 100% modulation
into 10k ohms.

Response
+/- 0.005 dB 20 Hz to 53 kHz;
+/- 0.03 dB, 53 kHz to 100 kHz.

Phase Response
0.05 degrees, deviation from linear,
20 Hz to 53 kHz.
Total time delay < 5 milliseconds.

Distortion
0.003% or less, reference 400 Hz at ±75 kHz deviation with 75µS de-emphasis and DIN "A" weighting in 10 Hz to 53 kHz pass band.

Signal-Noise
94 dB below 100% modulation (reference 400 Hz at ±75 kHz deviation with 75 µS de-emphasis and DIN 'A'
weighting in 10 Hz to 100 kHz pass band).

 

ENVIRONMENTAL

Temperature Range
+32 to +122 degrees F (0 to +50 degrees C)

Altitude Range
0 to 15,000 ft. (4,572 m)

Relative Humidity Range
0 to 95%, non-condensing.

 

SCA OPERATION

Number of Inputs
Three.

Input Impedance
10 k ohm 5 %.

Input Level
1.25 Vrms for 10% injection.

Amplitude Response
0.1 dB, 24 kHz to 110 kHz.

SCA Bandpass Filter
OFF No Filtering
55-110 kHz For All SCAs
55-79 kHz Use With 67 kHz Only
80-104 kHz Use With 92 kHz Only
55-59 kHz Use With RBDS Only
23-110 kHz Use With (41 kHz Mono)

 

STEREO OPERATION
ANALOG AUDIO INPUT

Input Impedance
Balanced 600 ohm 5 % or bridging.

Input Level
-10 to +10 dBm adjustable (0.1 dB steps).

Stereo separation
65 dB minimum, 50 Hz to 15 kHz.

Pilot Injection
0 - 10 % adjustable in 0.1 % increments.

Pilot Frequency
19 kHz 0.5 Hz.

Pilot Phase
1 degree deviation from 38 kHz sub-carrier.

38 kHz Suppression
-50 dB minimum.

Distortion
0.01 % THD using "A" (each channel) weighted filter 0.01 % IMD 60 Hz/7 kHz, 4:1 using CCIR-2K filter.

Sample Rate
38 kHz, over-sampled.

 

STEREO OPERATION
AES/EBU DIGITAL AUDIO INPUT

Input Impedance
75/110 ohm 5 % balanced shielded AES/EBU standard with transformer Coupling.

Input Level
0.5 to 10 V peak-to-peak.

Separation
76 dB minimum, 50 Hz to 15 kHz.

Pilot Injection
0 - 10 % adjustable in 0.1 % increments.

Distortion
0.01 % THD using "A" (each channel) weighted filter.
0.01 % IMD 60 Hz/7 kHz, 4:1 using CCIR-2K filter.

Sample Rate
32 to 50 kHz with automatic conversion to 38 kHz internal sampling rate.

Connector
Circular latching XLR. IEC 268-12

 

MECHANICAL

Size
19 inch wide (482.6 mm); 5-1/4" (133.4 mm) high;
22" (558.8 mm) deep

Weight
36 lbs. (16.3 kg), 42 lbs (19.1 kg) shipping weight

 

 

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