If outputs (e5740-if) – TANDBERG E5714 User Manual

Page 246

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Technical Specification

Page B-10

Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Encoder

ST.TM.E10076.3

Table B.13: IF Monitor Output Specification (1U, E5714)

Item

Specification

Safety status:

SELV

Connector designation:

IF OUT MONITOR

Connector type:

BNC, female 75

W

This connector is normally dedicated to output
the IF monitoring feed to the Receiver.

Output impedance:

75

W

Return loss:

>20 dB, 49.75 < f < 90.25 MHz

Output power:

–20 dB

±2 dB referenced to main IF output (IF OUT MAIN)

B.3.2

IF Outputs (E5740-IF)

Table B.14: IF OUT MAIN Specification (E5740-IF)

Item

Specification

Safety status:

SELV

Connector type:

BNC female 75

W

Connector designation:

IF OUT MAIN

Output impedance:

75

W

Output power:

-20 dBm to +5 dBm in 0.1 dB steps

Power level stability:

± 0.5 dB

Return loss:

>20 dB, 50-180 MHz

Modulation format:

QPSK as per EN 300 421 (DVB-S)

8PSK and 16QAM as per EN 301 210 (DVB-DSNG) (customer options)

FEC rate:

1/2, 2/3, 3/4, 5/6 and 7/8 with QPSK

2/3, 5/6 and 8/9 with 8PSK

3/4, and 7/8 with 16QAM

Symbol rate:

1 to 48 Msymbol/s

Spectrum roll-off factor:

20%, 25%, 30%, 35% selectable

Spectrum sense:

Normal / inverted

Transmission modes:

Modulation on/off

Carrier on/off

Carrier frequency:

50-180 MHz, tuneable in 1 kHz steps

Carrier frequency error:

<

±1 kHz (all causes over 10 years)

Carrier ON/OFF ratio:

>60 dB

Carrier suppression:

>40 dB

Phase noise:

<

-66 dBc/Hz at 100 Hz offset

<

-76 dBc/Hz at 1 kHz offset

<

-86 dBc/Hz at 10 kHz offset

<

-96 dBc/Hz at 100 kHz offset

<

-120 dBc/Hz at 1 MHz offset and above

Spurious outputs (modulated

carrier):

<

-60 dBc/4 kHz over the frequency range 0 to 500 MHz but excluding the frequency

range of the wanted output signal (equal to

±1.06 ´ Symbol Rate about the carrier

frequency, as defined by the spectrum mask Figure A.1 in EN 300 421)

Spurious outputs (unmodulated

carrier):

<

-55 dBc, each component

Noise floor (N

0

/C):

<

-120 dBc/Hz

Main / monitor output isolation

(both directions):

>30 dB, 50-180 MHz

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