Unity 4600 User’s Manual

 

 

 

 

Characteristic

 

Specification

 

 

 

 

 

Max Eb/N0 @ Quasi-error-free threshold

Per EN300 421:

 

 

(less than one uncorrected error-event per

QPSK R=1/2:

4.5 dB,

 

hour)

QPSK R=2/3:

5.0 dB,

 

 

 

 

QPSK R=3/4:

5.5 dB,

 

 

QPSK R=5/6:

6.0 dB,

 

 

QPSK R=7/8:

6.4 dB

 

RF Power Level Estimator

Unitless metric SIGNAL corresponds to input power as follows:

 

(locked to carriers or not)

above -25dBm

Extrapolated from 90 up to 100+

 

 

 

 

-25dBm

90

 

 

-35dBm

70

 

 

-45dBm

50

 

 

-55dBm

30

 

 

-65dBm

10

 

 

below -65dBm

Extrapolate from 10 down to <0

 

 

no signal

<0

 

 

Accuracy: unit to unit <±5 dBm; over frequency <±10 dBm

 

 

 

 

LNB DC POWER

(supplied on RF center conductor)

 

Activation

User- or network-controlled selectable: ON or OFF

 

Voltage

~ +18.7 VDC nominal at no loading, +18.0 VDC min. at max

 

 

loading

 

 

Current (full load)

350 mA max

 

 

Short-circuit protection

Thermal fuse, tripping at ~500 mA.

 

European “Universal LNB”

Software may be upgraded for “Universal Single LNB”

 

 

polarization and freq-band control per ASTRA recommendation

 

 

 

 

DVB-QPSK RECEIVER WITH 4-PORT RF SWITCH OPTION

 

 

 

 

 

SWITCHED RF INPUTS

 

 

 

Input Impedance

75Ω unbalanced

 

 

Isolation, port-to-port

> 45 dB, 950-1450 MHz

 

 

> 40 dB, 1450-2150 MHz

 

Input VSWR, 75-Ωsystem, selected port

< 2.6:1 (7 dB R.L. min), 950-1450 MHz

 

 

Not guaranteed, 1450-2150 MHz

 

Input VSWR, 75-Ωsystem, unselected port

< 2.0:1 (10 dB R.L min), 950-1450 MHz

 

 

Not guaranteed, 1450-2150 MHz

 

 

 

 

 

www.wegener.com

800032-01 Rev. G

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Wegener Communications 4600 manual LNB DC Power

4600 specifications

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