Harris Micromax, Руководство по эксплуатации

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Harris Micromax FM Exciter System Overview REV1 01/12/2007
1-5
WARNING: Disconnect primary power prior to servicing
SCA/RDS input 2 BNC unbal
SCA/RDS input impedance 10 kOhm
SCA/RDS input level -20 dBm
÷
+13 dBm for 2.0 kHz
continuosly adjustable
SCA/RDS amplitude/frequency response ± 0.2 dB, 40 kHz to 100 kHz
Output
RF Ouput “BNC”-type, 50 Ohm
RF Test BNC connector, --13 dBm +/-6 dB
50 Ohm
19 kHz pilot tone output BNC connector, 1 Vpp
minimum load 4.7 kOhm
Composite or Mono operation
S/N > 70dB wrt. 75 kHz, measured in the band 30 Hz
÷
20 kHz, 50 us deemph., RMS detect
Amplitude frequency response ± 0.5 dB, 20Hz
÷
15Khz
Total harmonic distortion (THD) < 0.08%
MPX operation
composite S/N > 70 dB wrt. 75 kHz, measured in the band 30 Hz
÷
20 kHz, 50 us deemph., RMS detect
MPX amplitude frequency response ± 0.3 dB, 30 Hz
÷
53 KHz
± 0.3 dB, 53 KHz
÷
100 KHz
MPX total harmonic distortion (THD) < 0.08 %
Stereo separation > 55 dB (typ. 60dB, with external stereo generator)
Stereo operation
S/N FM Stereo > 70 dB wrt. 75 kHz, measured on decoded
channels, in the band 30 Hz
÷
20 KHz,
50 us deemph, RMS detector
Audio frequency response ± 0.5 dB, 30 Hz
÷
15 KHz
Total harmonic distortion (THD)
≤
0.08 %
Stereo separation > 50 dB
Connections
Interlock connector BNC, inhibits RF power output when shorted to
ground
Service (serial) interface DB9 female RS232
Remote DB15 female
TABLE 1-1 (continued)
Technical Specifications