7-2013

RF & Wireless
Test & Measurement
AWT Global introduces Field Strength Meter
with Spectrum Capability: UBA 9290
The battery operated, handheld analyzers
are well suited for wireless field applications
but are also a very useful tool in the
RF laboratory. UBA 9290 analyzers cover a
frequency range from 100 kHz to 2.9 GHz
and with a sensitivity of –117 dBm, they
are capable of evaluating even weak RF
signals. A frequency counter with separate
input allows to measure frequencies from
9 MHz to 2.1 GHz. The UBA 9290 comes
with N connector at the RF input and BNC
at the frequency counter input. The builtin
attenuator offers 10, 20, 30 and 35 dB
settings. AWT Global‘s UBA 9290 weighs
less than 400 grams (0.9 lbs) and measures
82 x 205 x 36 mm (3.2 x 8.1 x 1.4 inches).
The weight and dimensions make it a true
handheld instrument.
UBA 9290 can store up to 100 traces & measurement
settings in the instrument and with
320 x 240 pixel resolution, the TFT color
display shows traces in great detail. Dual
markers offer readout of absolute amplitude,
frequency and delta values. They can
be scrolled manually, or set to automatically
find and track peaks.
UI software is included with the standard
shipment and remote controls the UBA 9290
via USB interface. The analyzer comes also
with soft case, power supply, a set of rechargeable
batteries, USB Cable, N -TNC adapter
and wide-band measurement antenna.
■ AWT Global LLC
info@arworld.us
www.awt-global.com
Vaunix Announces LDA Digital Attenuators Now Available
with N-Type Connectors
Vaunix Technology Corporation,
a manufacturer of USB controlled
and powered test equipment,
has announced additions
to their LDA Digital Attenuators
line. Five of their LDA Digital
Attenuators are now available
with N-Type Connectors.
The LDA series of Lab Brick
Digital Attenuators includes
50 Ohm RF step attenuators
with calibrated operation up to
6 GHz. These units connect to a
USB port for control and power
and require no additional DC
supply voltage. They are easily
programmable for fixed attenuation
or swept attenuation ramps
directly from the included GUI.
Lab Brick Digital Attenuator
API DLL and LabVIEWcompatible
drivers are also available
for custom programming
applications.
Lab Brick Digital Attenuators
are ideal for engineering and
production test laboratories as
well as integration into high
speed automatic-test-equipment
(ATE) systems. They can
also be used in development of
low-cost fading simulators for
Multiple Input Multiple Output
(MIMO) and Single Input
Multiple Output (SIMO) communication
systems such as
WiMAX, 3G and LTE. They
are based on solid state attenuator
technology for excellent
repeatability of attenuation
values. The new models
include: LDA-102N, .1-1000
MHz; LDA-602N, 6-6000 MHz;
LDA-302P-HN, 10-3000 MHz,
2 watts, 0.5 dB; LDA-302P-1N,
10-3000 MHz, 2 watts, 1.0 dB;
and LDA-302P-2N, 10-3000
MHz, 2 watts, 2.0 dB.
■ Vaunix Technology
Corporation
www.vaunix.com
AR‘s „Cavitenna“ RF Antenna Uses The Shielded Room as a
Reverberating Antenna
A top-loaded monopole, the Cavitenna, model
ATC25M1G, uses the shielded room as a reverberating
antenna, and the wall as the antenna‘s
ground plane. As a result, it accommodates
extremely high power and corresponding field
intensities, comparable to those of log-periodic
antennas four times the size of the Cavitenna.
The advantages of the Cavitenna are
more apparent when used in fully automated
test configurations.
In a mode tuned or mode stirred reverberation
chamber, the Cavitenna‘s value is realized over
a wide frequency range. It can be mounted on
a wall and not protrude into the test volume
like other antennas. The Cavitenna‘s compact
design and high efficiency can even allow some
reverberation chambers to extend their usefulness
to lower frequencies.
■ AR RF/Microwave Instrumentation
www.arworld.us
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