| Press Release |
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August 3, 2010 |
Circuit Design Introduces a Low Power, Industrial Use Transceiver for the Indian Market |
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Circuit Design, Inc. has
recently developed and released a 335 MHz version of the
highly successful industrial use radio transceiver module
STD-302N-R for the Indian market. With versions already on
sale in the Japanese, Chinese, European and Korean markets,
the version for Indian frequencies supports industrial
equipment manufacturers seeking to enter the Indian market.
The pin assignment in all frequency versions is the same,
so that by changing the PLL frequency program, manufacturers
can switch between versions according to their market.
LMD-400-R, the higher grade model of the STD-302N-R, is
available in FCC Part 90 and EN 300 113 compliant versions.
Furthermore, the LMD-400-R has the same interface as the
STD-302N-R.
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Using this common
platform, manufacturers can meet the requirements of the
sub-GHz radio and the radio standards in each country simply
by replacing the radio component.
The STD-302N-R was
developed as a narrowband RF transceiver for use in industrial
radio equipment. It is resistant to mechanical vibration and
impact, and its double superheterodyne receiver circuit
ensures high receiver sensitivity. Operating in a narrow band
and with high selectivity, the STD-302N-R provides highly
reliable communication even in applications where several
devices are used at the same time. The STD-302N-R is designed
for high performance while the flexibility of discrete,
interchangeable components ensures a stable supply of products
over the long term. This concept, combined with stable
performance and quality, is highly regarded by manufacturers
around the world.
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STD-302N-R lineup 
| Frequency |
335 MHz |
419 MHz |
429 MHz |
434 MHz |
447 MHz |
458 MHz |
869 MHz |
| Market |
India |
China |
Japan |
E.U. |
Korea |
U.K. |
E.U. |
| Power (mW) |
1 |
10 |
10 |
10 |
10 |
10 |
5 |
| CH space (kHz) |
25 |
25 |
12.5 |
25 |
12.5 |
25 |
25 |
| Data rate
(bps) |
4800 |
9600 |
4800 |
9600 |
4800 |
9600 |
9600 |
| Sensitivity
(dBm) |
-120 |
-118 |
-120 |
-119 |
-120 |
-119 |
-116 |
* Sensitivity: 12 dB SINAD * 335 MHz is assigned as the
frequency for remote control
LMD-400-R lineup
| Frequency |
458 to 462.5 MHz |
438 to 442 MHz |
458 to 462 MHz |
| Standard |
FCC Part 90 |
EN 300 113 |
EN 300 113 |
| Market |
U.S. |
E.U. |
E.U. |
| Power (mW) |
10 |
10 |
10 |
| CH space (kHz) |
12.5 |
12.5 |
12.5 |
| Data rate
(bps) |
4800 |
4800 |
4800 |
| Sensitivity
(dBm) |
-116 |
-110 |
-110 |
* Sensitivity: 12 dB SINAD
* An external power amplifier
and control board are available from Reimesch
Kommunikationssysteme GmbH, Germany.
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