USER’S MANUAL. PROMAX-25
09/2004 Page 3
English
BER (Bit error rate)
Measured before RS decoding
Measurement range 10 E-2 to 10 E-8
Constellation Diagram Signals meet ITU-J83 (Annex B) and DOCSIS
Lock range -10 dBmV to 60 dBmV
Symbol rate
Measurement range 5057 Msym/s for QAM 64 and 5361 Msym/s for
QAM 256
Datalogger For each channel, the level, BER and MER can be
stored, for data dumping to printer or PC.
Modulation type QAM 64/256 ITU J1 annex B.
Bandwidth 6 MHz
Frequency tuner 62.5 kHz.
DATALOGGER FUNCTION
Max. number of loggers 100
Measurements
Digital channels Upstream and Downstream parameters (Power
level, attenuation, frequency, bandwidth,
modulation, symbol rate and MER).
SCAN
Span 100 MHz (16 channels)
Dynamic range 50 to 90 dBuV
POWER SUPPLY
NiMh battery 12 V — 1.4 Ah.
Low battery indication Graphic indication on the display:
Autonomy Approximately 2 hours.
Automatic power-off Power-off after approximately 10 minutes of non-
use.
Battery charge By fast internal charger.
Equipment consumption 14.5 W.
Mains to charger adapter Al-103: 230 V / 50-60 Hz / 12 V DC (EUROPE and
other countries).
ENVIRONMENTAL CONDITIONS
This equipment could be used on the following environmental conditions, in these
conditions the specifications could also be applied:
Altitude Up to 2000 metres.
Temperature range From 5 °C to 40 °C.
Maximum relative humidity 80 % (up to 31 °C),
decreasing lineally up to 50% at 40 °C.
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