Wegener Communications UNITY 4600 - Manual (Page 13)

www.wegener.com 800032-01 Rev. G 7
Unity 4600 User’s Manual
Max E
b
/N
0
@ Quasi-error-free threshold
(less than one uncorrected error-event per
hour)
Per EN300 421:
QPSK R=1/2: 4.5 dB,
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
(locked to carriers or not)
Unitless metric SIGNAL corresponds to input power as follows:
above -25dBm
-25dBm
-35dBm
-45dBm
-55dBm
-65dBm
below -65dBm
no signal
Extrapolated from 90 up to 100+
90
70
50
30
10
Extrapolate from 10 down to <0
<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 75
Ω unbalanced
Isolation, port-to-port > 45 dB, 950-1450 MHz
> 40 dB, 1450-2150 MHz
Input VSWR, 75-
Ω system, selected port
< 2.6:1 (7 dB R.L. min), 950-1450 MHz
Not guaranteed, 1450-2150 MHz
Input VSWR, 75-
Ω system, unselected port < 2.0:1 (10 dB R.L min), 950-1450 MHz
Not guaranteed, 1450-2150 MHz
Characteristic Specification