iPump 6420 User’s Manual
www.wegener.com 800070-01 Rev B Chapter 1, Page 13

1.4. iPump 6420 Specifications

Characteristic Specification
DVB-S1-QPSK Tuner
RF Input
Input Impedance 75 Ω unbalanced
Input VSWR, 75 Ω system < 2:1 (9.0 dB R.L. min), 950-1450 MHz
< 3:1 (6.0 dB R.L. min), 1450-2150 MHz
Surge Resistance Survives up to 10 direct-coupled 8kV discharges (per IEC
801-2)
RF Tuning
Input Frequency Range 950 to 2150 MHz
LO Leakage at Input < -50 dBm
Symbol-rate Range 2 to 45 Msps (may be limited by Transport Rate Limits)
Tuning Resolution 10 kHz
Input Signal Level Range -25 to -65 dBm
Signal Level Warning
Limits
Warns within +10/-5 dB of upper limit and +5/-10 of lower
limit
Maximum Aggregate Input
Power
-8 dBm min
Demodulator/FEC
Modulation QPSK (α=.35) per DVB (EN300 421)
Carrier acquisition range +1 MHz or +10% of symbol-rate QPSK, whichever is greater
Max Eb/No @ 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,
Unitless metric SIGNAL corresponds to input power as
follows:
Above -25dBm: Extrapolated up to 100+
-25dBm: 90 -55dBm: 30
-35dBm: 70 -65dBm: 10
-45dBm: 50 no signal <0
Below -65dBm: Extrapolated from 10 down to <0
RF Power Level Estimator
(locked to carrier or not)
Accuracy: unit to unit <+5 dB; over frequency <+10 dB
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”
Implements LNB polarization & frequency-band control, per
ASTRA recommendation