USER’S MANUAL. PROMAX-25
Page 2 09/2004
The Acquisition function lets users create and store a number of measurement
acquisitions in memory. The measurements obtained may be checked, transferred to a
PC or printed at any time.
In the design of the PROMAX-25 special care has been taken to create a
practical, accurate, yet easy-to-use device. A simple alphanumeric keypad incorporating
soft-keys facilitates direct access to the various operating modes. Once accessed,
ambidextrous navigation and selection keys can be used to easily modify any
parameter of the measurements.
Additionally, it has an RS-232 interface for connection to a printer or computer
to generate reports on the measurements performed.
The instrument is powered by means of an internal rechargeable battery.
The integration of all of these functions in a device that weights less than 1.5 kg,
with ergonomic, robust design, make the PROMAX-25 an unbeatable fieldwork tool.
1.2 Specifications
TUNING
Tuning range
Downstream From 93 to 855 MHz.
Upstream From 5 to 42 MHz.
Tuning mode By channels or by frequency.
Channel plan 10 channel plans, each one with a maximum of 140
channels. Factory start-up channel plans:
IRC, HRC, CCIR, EIA, JAP2, FCC, AUNAD,
BRAS, ONO.
Resolution 62,5 kHz.
Indication Graphic LCD with back lighting.
Channel frequency offset ± 2,5 MHz.
LEVEL MEASUREMENT
Measurement
Digital channels Power measurement in the channel bandwidth by
detection method.
Measuring range From 50 to 90 dBµV. (From -10 dBmV to 30 dBmV)
Maximum input level
From 93 to 855 MHz 120 dBµV. (60 dBmV
(1)
)
DC to 60 Hz 60 V DC or RMS
Readout Digital in dBµV, dBmV or dBm. 1 dB resolution
IF bandwidth 6 MHz
Input impedance 75 Ω
Accuracy ± 3 dB for 6 MHz bandwidth channels.
DIGITAL SIGNALS MEASUREMENT
MER (Modulation error ratio)
Measurement range 22 dB to 36 dB for QAM 64 / 256
Accuracy ± 2 dB
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