USER’S MANUAL. PROMAX-10
Premium
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Maximum input level
From 5 to 862 MHz
120 dB
µ
V. (60 dBmV
(2)
).
DC to 60 Hz
60 V DC or RMS
Reduction of the measurement range depending on the number of channels.
Up to 10 channels
110 dB
µ
V.
From 11 to 20 channels
107 dB
µ
V.
From 21 to 50 channels
103 dB
µ
V.
From 51 to 80 channels
101 dB
µ
V.
Readout
Digital in dBµV, dBmV or dBm and analogue
through a graphic bar. 1 dB resolution
IF bandwidth
230 kHz
±
50kHz
Input impedance
75
Ω
Audible indicator
Tone which varies with the signal level.
Accuracy
Analogue channels
±
2 dB (from 0 to 40
°
C) for negative video
modulation
(3)
.
Digital channels
±
3 dB (from 0 to 40
°
C) for 8 MHz bandwidth
channels.
DIGITAL SIGNALS MEASUREMENT
MER (Modulation error ratio)
Measurement range
22 dB to 34 dB for 64 QAM.
Accuracy
±
2 dB
BER (Bit error rate)
Measured before RS decoding
Measurement range
10 E-2 to 10 E-8
Constellation Diagram
DVB-QAM signals (Annex A/B/C) and DOCSIS /
Euro-DOCSIS
Lock range
-10 dBmV to 60 dBmV
Symbol rate
Measurement range
1000 to 7200 Msym/s
*
for 16/64/256 QAM
Datalogger
For each digital channel, the level and the MER can
be stored.
(BER for data dumping to printer or transfer to PC)
Modulation type
16/32/64/128/256 QAM ITU J1 annex A/C and
64/256 QAM ITU J1 annex B.
Bandwidth
8 MHz
Frequency tuner
62.5 kHz.
VIDEO / AUDIO RATIO MEASUREMENT (ANALOGUE CHANNELS)
Measurement
Ratio of video to audio carrier levels.
Measurement range
From 0 to 40 dB
Audio subcarrier frequency
Variable
4-9 MHz.
Accuracy
± 2 dB (from 5 to 40
°
C) for FM audio carrier
(4)
.
*
Including the OP-010-E option, otherwise the margin is from 1000 to 7000.
