Promax US TV EXPLORER II, User Manual

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USER’S MANUAL. US TV EXPLORER II
Page 4 01/2008
1.2 Specifications
CONFIGURATION FOR MEASURING LEVEL AND POWER
TUNING Digital frequency synthesis. Continuous tuning from
5 to 1000 MHz and from 950 to 2150 MHz.
Tuning modes Channel or frequency (IF or downlink at satellite
band).
Channel plan configurable on demand.
Resolution 5-1000 MHz: 50 kHz
950-2150 MHz: < 200 kHz (span FULL-500-200-
100-50-32-16 MHz).
Automatic search ( Explorer ) Threshold level selectable.
Signal identification Analogue and digital. Automatic.
RF INPUT
Impedance 75
Ω
.
Connector Universal, with BNC or F adapter.
Maximum signal 130 dBµV.
Maximum input voltage
DC to 100 Hz 50 Vrms (powered by the AL-103 power charger).
30 Vrms (not powered by the AL-103 power charger).
5 MHz to 2150 MHz 130 dBµV.
DIGITAL SIGNALS MEASUREMENT
POWER RANGE
8-VSB: 45 dBµV to 100 dBµV.
QAM Annex-B/-A: 45 dBµV to 110 dBµV.
QPSK/8PSK: 44 dBµV to 114 dBµV.
DSS: 44 dBµV to 114 dBµV.
MEASUREMENTS
ATSC (8-VSB): Power, SER, VBER
3
,
MER, C/N and noise margin.
Presentation: Numeric and level bar.
3
The BER measurement shown by default (when PRN-23 BER option from Preferences menu is set to OFF)
yields an estimated value calculated using the MER measurement. In order to obtain a more accurate BER
measurement value, the PRN-23 BER option from Preferences menu must be set to ON and a PRN-23 signal
pattern must be used through the RF signal input [30].
If the input signal is like PRN-23 or a video signal, the BER and VBER measurement are considered as
acceptable when BER/VBER
≤
3*10E-6 and SER-ERR/s
≤
2 being SER value the number of wrong packets
taken as reference measurement.