11-2012
HF-Praxis 11/2012
HF-Praxis 11/2012
Erfolgreiche ePaper selbst erstellen
Machen Sie aus Ihren PDF Publikationen ein blätterbares Flipbook mit unserer einzigartigen Google optimierten e-Paper Software.
RF & Wireless<br />
Wireless<br />
AR Expanded<br />
0.8 - 4.2 GHz<br />
Solid-State<br />
Amplifier Family<br />
AR RF/Microwave Instrumentation<br />
has expanded its family<br />
of S1G4 amplifier series that<br />
cover the 0.8 - 4.2 GHz frequency<br />
range. Two new models<br />
have been added which offer<br />
525 watts and 700 watts of<br />
RF power.<br />
M o d e l s 5 2 5 S 1 G 4 , a n d<br />
700S1G4 are both more compact<br />
(24U high) than our present<br />
subampable 600S1G4Awhich<br />
is 35U high, and more<br />
than 40% lighter weight. The<br />
non subampable approach<br />
reduces extra interfaces and<br />
output cable losses on to deliver<br />
more output power which in<br />
turn results in a more cost effective<br />
approach to fill your needs.<br />
Both models utilize state-of<br />
-the art circuitry to minimize<br />
distortion and improve stability.<br />
Each model is equipped<br />
with a Digital Control Panel<br />
(DCP), which provides both<br />
local and remote control of the<br />
amplifier. The display provides<br />
operational presentation of<br />
Forward Power and Reflected<br />
Power plus control status and<br />
reports of internal amplifier<br />
status. Special features include<br />
a gain control and RF output<br />
level protection.<br />
■ AR RF/Microwave<br />
Instrumentation<br />
www.arworld.us<br />
Low Power Radio Solutions launches new<br />
low-cost easy radio Arduino Shield<br />
LPRS has introduced the eRA-<br />
Arduino-S900. A ‚shield‘ or<br />
stacked module that allows<br />
Arduino boards to communicate<br />
wirelessly with other eRA<br />
module-equipped Arduino<br />
boards or PC hosts, using proprietary<br />
easyRadio technology<br />
operating in the 868 – 915 MHz<br />
ISM band. Host Arduino boards<br />
can now easily send and receive<br />
up to 180 Bytes of half-duplex<br />
data per packet, seamlessly delivered<br />
to all other hosts within<br />
KMW2030 Amplifier<br />
System For Tactical<br />
Radios Receives<br />
Additional JITC<br />
Certification<br />
AR Modular RF has received<br />
JITC certification for its<br />
KMW2030 tactical radio amplifier<br />
system (30 MHz - 512<br />
MHz / 125 watts) when used<br />
with the Harris PRC-<strong>11</strong>7G<br />
tactical radio. It has been previously<br />
certified for use with<br />
the PRC <strong>11</strong>7F and the PSC-<br />
5D. The KMW2030 was tested<br />
along with its associated Low<br />
Noise SATCOM pre-amp, the<br />
KMW2030P. This auto-band<br />
switching AM/FM-UHF/VHF<br />
DAMA amplifier uniquely<br />
fills the need for high-power<br />
tactical communications from<br />
ground vehicles, and can also<br />
range. There is no need for any<br />
complicated ‚bit balancing‘<br />
or elaborate coding schemes.<br />
Addressing and implementation<br />
of wireless networking (pointto-point<br />
and peer-to-peer) can<br />
be handled by Arduino application<br />
software proving providing<br />
flexibility without sacrificing<br />
simplicity of operation.<br />
The LPRS eRA-Arduino-S900<br />
provides considerably greater<br />
range (typically 200 m) and consumes<br />
less power than similar<br />
be used for aircraft tactical operations.<br />
Designed for easy operation,<br />
the user need only select<br />
MODE and POWER LEVEL<br />
to operate. The „Battle Tested“<br />
amplifier is protected against<br />
antenna mismatch, over-temperature,<br />
excessive current draw,<br />
high VSWR, and DC power<br />
mismatch.<br />
■ AR Modular RF<br />
www.arworld.us<br />
WiFi or Bluetooth devices operating<br />
in the overcrowded 2.4<br />
GHz bands. Frequency, bandwidth,<br />
power output, and data<br />
rate can optionally be configured<br />
to allow multiple devices to<br />
communicate free from interference<br />
from each other and any<br />
other RF devices.<br />
eRA-Arduino-S900 incorporates<br />
an eRA900TRS wireless module<br />
which provides simple-to-use,<br />
out-of-the-box wireless serial<br />
communication as a COMport.<br />
No complex RF protocol software<br />
is required to create an instant<br />
bidirectional link. Measuring<br />
just 68.5 x 50 x 10 mm the<br />
eRA-ARDUINO-S900 Wireless<br />
Arduino Shield is powered by<br />
the host Arduino‘s 5 V, consuming<br />
25/35 mA in idle/transmit.<br />
An integral SMA antenna<br />
connector allows for use of an<br />
off-board antenna. Transmit<br />
and Receive LEDs are provided<br />
to confirm communication<br />
operation.<br />
Other innovative features available<br />
on eRA modules include a<br />
digital RSSI (Received Signal<br />
Strength Indication), no need<br />
for host to handle A/D measurement,<br />
temporary channel<br />
selection allows host to scan<br />
other channels in real time, temperature<br />
compensated crystalcontrolled<br />
synthesizer for frequency<br />
accuracy