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Con las teclas “+” o “-” se pueden configurar en UFO
385 los canales de salida S21-S41/C21-C37. En UFO
387 la frecuencia central de canal: 114 MHz - 298 MHz.
Si es necesario (configuración de frecuencia) pasar al
submenú con la tecla .
935.2155/D/0705/3.4esp
3. Elegir el canal de salida o la frecuencia de salida
Entr. 2004 MHz
22.000 MS/s 5/6
Sal. S21 306.00 MHz
6.111 MS/s 64 QAM
Con las teclas “+” o “-” es posible modificar la
frecuencia de salida en pasos de 50 kHz. La
configuración posible es de ±3,9 MHz (referida
al centro del canal).
Se regresa al menú principal con la tecla .
**** UFO385 * * * *
Freq. salida 306.00 MHz
< Volver: Submenú >
4. Elegir los niveles QAM
Entr. 2004 MHz
22.000 MS/s 5/6
Sal. S21 306.00 MHz
6.111 MS/s 64 QAM
Entr. 2004 MHz *
22.000 MS/s 5/6
Sal. S21 306.00 MHz
dem alta 16 QAM
Si en vez de la velocidad de símbolos de salida aparece…
Elegir el QAM deseado con las teclas “+” o “-”.
Son posibles los niveles 16, 32, 64, 128 y 256 QAM.
…hay que elegir un QAM de mayor nivel.
Entr. 2004 MHz *
6.000 MS/s 5/6
Sal. S21 306.00 MHz
dem baja 256 QAM
Si en vez de la velocidad de símbolos de salida aparece…
…hay que elegir un QAM de menor nivel.
5. Elegir la señal de modulación para el modulador QAM
Entr. 2004 MHz
22.000 MS/s 5/6
Sal. S21 306.00 MHz
6.111 MS/s 64 QAM
**** UFO385 * * * *
Modulación Señal SAT
Espectro normal
< Volver: Submenú >
Tras elegir el parámetro …QAM, pasar al submenú con la
tecla .
Elegir los modos “Señal SAT”/”PRBS” con las teclas “+”
y “-” en el submenú.
Señal SAT: Funcionamiento normal. Se transmodula la
señal de entrada SAT.
PRBS: La señal pseudoaleatoria interna modula el
modulador QAM con fines de medición.
Se genera una señal de 64 QAM con una
velocidad de símbolos de salida de 6,875
MS/s. No se precisa señal de entrada Sat.
15


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