Atec Aeroflex-3920B - Manual (Page 2)

The one test set for all your narrowbanding test needs!
With the largest selection of digital radio options of any radio test set,
the 3920B will meet all of your narrowbanding test needs, both now and
in the future. The software defined digital architecture of the 3920B
provides for future technology enhancements as new digital
technology becomes available. You can easily perform software updates
in the field, making additions of new software features and options as
simple as plugging in a USB flash memory drive.
Menu of Radio Test Systems in the 3920B
Ease of Use
Combining the power of an onboard PC with a 30 GB hard-drive and
Linux OS, the 3920B can support USB mouse and keyboard interface
for very easy operation as well as almost unlimited save/recall setups,
saving time and effort. Multiple methods of controlling the 3920B
include the front panel keys, using a mouse and keyboard, or through
a VNC application on your PC, touch-screen tablet or mobile phone.
Ease of Test
To make you more productive, the 3920B is not only simple to use but
has features that makes testing a radio quick and repeatable. The 3920B
features easy-to-read meters with Pass/Fail color coding for instant
Go/NoGo testing. With these easy-to-configure meters, you can set up
unique Pass/Fail parameters for each radio type that you are testing.
When used with the save/recall locations, this allows for instant recall of
the test parameters, so semi-technical or non-technical individuals can
simply key the radio and test. The meters will display “Green” for good,
“Red” for high and “Blue” for low. A quick glance and the operator will
know that the radio is within established test parameters.
P25 UUT Measurements Tile Maximized, Showing Green, Red
and Blue Indications
High Performance
Measurement speed is directly related to processing power and
internal communications. The 3920B digital architecture utilizes a
mixture of powerful digital signal processors and programmable logic.
Coupled to the use of a compact PCI backplane capable of delivering
peak rates of >100 MB, this ensures that the instrument has the power
to acquire, synchronize and process data, producing measurement
results to the user with the minimum of delay.
Accurate Testing
Time Base: With a 0.01 ppm OCXO frequency standard, the 3920B
provides ultra-reliable RF frequency measurements. For even more
stability, the 3920B provides an external frequency reference input.
Generator: Level accuracy is important in determining today’s
receiver performance in design, manufacturing and field service
environments. With a 1 dB (0.6 dB typical) level accuracy on the RF
output ports, the 3920B provides consistent results in testing receiver
parameters.
Receiver: For sensitive measurement, e.g. off-air analysis, a low power
input is provided via the antenna input port. This low level input gives
the user the ability to measure an off the air signal as low as -100
dBm or -115 dBm with the internal pre-amp selected. Direct input of
signal power of up to 125 W is supported, making the 3920B
compatible with virtually all practical requirements for mobile
terminal and base station test.
Audio: With high accuracy audio generators from 1 mV to 8 V rms,
the 3920B provides level accuracy to ±1% of the setting. The audio
generator frequency ranges from 20 Hz to 40 kHz and 0.1 Hz resolution
provides solid audio performance for audio testing. The AF Counter
features full range from 20 Hz to 20 kHz.
Automatic Testing
The Auto-Test II environment provides you with the capability to turn
the 3920B into a stand alone ATE test environment. With the built-in
PC running your test script, or one of our available automatic test and
alignment applications, the 3920B can be conformed to your exact
testing needs. Available with the Auto-Test II option for the 3920B are
a selection of applications covering many of the latest digital radios.
With these applications, you can automatically test and align the
transmitter/receiver of a radio in as little as 5 minutes.
Motorola ASTRO 25 Radio Alignment
More automatic test and alignment options are being added all the
time. For the latest selection of scripts for the 3920B, go to www.aerof-
lex.com/3920 and click on the 3920 Radio Test Set Scripts link in the
Product Directory.
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