Radyne DM240XR Spezifikationen PDF herunterladen (Seite 29)

DM240XR High-Speed Digital Modulator User Interfaces

MN-DM240XR– Revision 13 4–7

configure this menu when user desires to display the satellite

uplink RF frequency on the RF Menu.

LO FREQ ( MHz): {4000 MHz to 50000 MHz or 0 to bypass}

Enter the LO frequency of the BUC to correctly display the RF

satellite output frequency in the RF Menu. The LO Frequency

must be 0 if 70/140 MHz is the desired output frequency.

LO MIX: {HIGH SIDE, LOW SIDE}

Enter location of the LO in reference to the uplink frequency

POWER (dBm): Transmitter output power:

Enter in 0.1 dBm increments from: -25.0 to 0.0 dBm

CARRIER: {ON, OFF}

Transmitter Power On/Off Control.

MODULATION: {BPSK, QPSK, 8PSK, 16QAM} DVB-S

{QPSK, 8PSK, 16APSK, 32APSK} DVB-S2

Modulation Type.

INNER FEC RATE: DVB-S QPSK 1/2, 2/3, 3/4, 5/6, 7/8

DVB-S BPSK 1/2, 2/3, 3/4, 5/6, 7/8

DVB-S 8PSK 2/3, 5/6, 8/9

DVB-S 16QAM 3/4, 7/8

DVB-S2 QPSK 1/4, 1/3, 1/2, 2/5, 3/5, 2/3, 3/4,

4/5, 5/6, 8/9, 9/10

DVB-S2 8PSK 3/5, 2/3, 3/4, 5/6, 8/9, 9/10

DVB-S2 16APSK 2/3, 3/4, 4/5, 5/6, 8/9, 9/10

DVB-S2 32APSK 3/4, 4/5, 5/6, 8/9, 9/10

SAT FRAMING {DVB-S2-NORMAL, DVB-S2-SHORT}

This only appears when DVB-S2-CCM network spec is active.

DATA RATE (BPS): Terrestrial Data Rate:

Enter in 1 Bps increments from 1,000,000 to 238,000,000 BPS.

SYMB RATE (SPS): Output Symbol Rate:

Enter in 1 SPS increments from 1,000,000 to 68,000,000 Sps.

SPECTRUM: {NORMAL, INVERTED}

ROLL OFF: {0.35, 0.25, 0.20}

Changes the Spectrum Roll Off

PILOT SYMBOLS: {ON, OFF}

Physical layer pilot symbols. Displayed only in DVB-S2 related

network spec.

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Radyne DM240XR Spezifikationen Seite 29