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Manufacturer: Promax
Model:PROMAX 12
Origin: England
Warranty: 12 months
TUNING
Tuning range: From 5 to 1005 MHz.
Tuning mode: By channels or by frequency
Channel plan: Selectable
Resolution: 10 kHz
Indication: Graphic display with backlight
LEVEL MEASUREMENT
Measurement
Analogue Channels: Signal level measurement on video carrier
Digital Channels: Channel power measurement by integration
through channel bandwidth
Measurement range
Analogue channels: From 25 to 120 dBμV (-35 dBmV to 60 dBmV).
Digital channels: From 35 to 120 dBμV (-25 dBmV to 60 dBmV)
(channels of 8 MHz).
Maximum input level
From 5 to 863 MHz: 120 dBμV (60 dBmV)
DC to 60 Hz: 60 V DC or RMS
Reading: Digital in dBµV, dBmV or dBm and analogue
by Graphic display with backlight.
1 dB resolution.
Accuracy
Analogue Channels: ± 2 dB (0 to 40 °C) Negative video modulation
Digital Channels :± 3 dB (0 to 40 °C) For 8 MHz channel
bandwidth
Digital measurements
MER (Modulation Error Rate)
Measurement range: 26 dB to 40 dB
Accuracy: ± 2 dB
BER (Bit error rate)
Measured before RS decoding
(PreBER)
Measurement range: 10 E-2 to 10 E-8 (low resolution) E-9 (High
resolution), E-10 in Continous mode
Measured after RS decoding
(PosBER)
Measurement range: 10 E-2 to 10 E-8 (low resolution) E-9 (High
resolution), E-10 in Continous mode
Constellation Diagram: DVB-QAM signals (Annex A/B/C) & DOCSIS /
Euro-DOCSIS
Lock range: 50 dBµV to 120 dBµV (-10 dBmV to 60 dBmV)
Symbol rate Measurement: 1000 to 7000 Ksym/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: QAM 16/32/64/128/256 ITU J83 annex A/C,
QAM 64/256 ITU J83 annex B y QPSK
Bandwidth: 8 MHz
Frequency tuner: 62.5 kHz
MECHANICAL FEATURES
Dimensions: W. 70 (90 at display) x H. 218 x D. 50 mm
Weight: 825 g.
