R.V.R. Elettronica PTX-LCD, Руководство пользователя

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PTX-LCD
38 / 58 User Manual Rev. 2.3 - 18/07/07
SCA input level -20 dBm
÷
+10 dBm, trimmer adjustable
SCA amplitude-frequency response ± 0.2 dB, from 40 KHz to 100 KHz
Crosstalk from subcarrier 67KHz on 65 dB
main or stereo channel
Crosstalk from subcarrier 92KHz on 70 dB
main or stereo channels
Output
MPX monitor: 0 dBm for FM 75KHz
minimum load 600 Ohm
Pilota tone 19 KHz 1 Vpp minimum load 4.7 KOhm
RF Test -30 dB wrt RF
50 Ohm impedance
MONO operation
FM S/N > 82dB (90 dB typical) wrt 75KHz measured
in 20 Hz
÷
20 KHz band with 50 us
deemphasys, RMS detector
Amplitude/frequency response ± 0.5 dB, 20Hz
÷
15Khz
Total Harmonic Distortion (THD) < 0.02%
Intermodulation distortion < 0.02% measured with 1 KHz and 1.3 KHz
tones, 1:1, 75 kHz modulation
MPX operation
Composite FM S/N > 82dB (90 dB typical) wrt 75 kHz measured
in 20 Hz
÷
100 kHz band with 50 us
deemphasys, RMS detector
MPX frequency/amplitude response ± 0.05 dB, 20 Hz
÷
53 KHz
± 0.2 dB, 53 KHz
÷
100 KHz
MPX THD < 0.02%
Intermodulation distortion < 0.02% measured with 1 kHz e 1.3 kHz
tones, 1:1, 75 kHz FM
Stereo separation > 50 dB (typical 60dB)
Stereo Operation
Stereo FM S/N > 82dB (90 dB typical) wrt 75 kHz measured
in 20 Hz
÷
100 kHz band with 50 us
deemphasys, RMS detector
Audio amplitude/frequency response ± 0.5 dB, 20 Hz
÷
15 KHz
Total Harmonic distortion < 0.03%
Intermodulation distortion < 0.03%, measured with 1 KHz and 1.3 KHz
tones, 1:1, 75 kHz modulation
Stereo separation > 50 dB (typical 60 dB)
Remote connections
Remote connector DB15 female; includes:
FWD and RFL input for external AGC
6 digital/analog input
2 relay output
Interlock BNC type, for power output deactivation
I2C interface