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Adcon Network

Today "Wireless Sensor Networks" has become a major buzzword. They are supposed to be the solution for the future. Right - but the future has already begun! For more than 20 years Adcon Telemetry has favored networked solutions over single stations. We want our stations to talk to each other, we want them to relay other stations' data back to base. And rather than blasting this data into the ether with high output power, burning lots of energy, we prefer to build highly sensitive receivers, using tiny solar panels charging small batteries - and still last for a very very long time.

Star Topology

To learn more about the equipment move your mouse cursor over the items circled in the dotted red line!

The simplest of all topologies is the so-called star topology. Each station talks directly to the central base station. In the truest sense of the word this applies only to our UHF stations, as an A733 UHF radio station communicates directly with the A850 base station - there is nobody in between.

A GPRS connection might appear to be the same, as you build a connection between the GPRS station and the A850 Gateway. However, allthough invisible to you, you have all the GSM infrastructure and the internet in between. What the animation above shows is how the A850 Telemetry Gateway starts a "polling cycle" to collect data from each station, one after the other. Once the cycle is finished it automatically starts a new cycle.

LongRange Networks

Wireless Sensor Networks

What makes the Adcon Topology so special? That's not hard to explain: every Adcon long range radio station, be it a weather station, a meter reading station or a pump monitor, can at the same time perform as a relay station for other Adcon long range or short range radio stations.

Move your mouse cursor over the dotted lines around the equipment to see more details!

This not only extends the range of data transmission, it also largely reduces infrastructure cost, because

  • very low output power is sufficient,
  • which can frequently be radiated free of charge or against a minor fee only,
  • such a station needs much less power and requires much smaller - and cheaper - solar panels,
  • installing dedicated relay stations is usually not necessary.

Furthermore that very same base station, which collects data from short and long range radio stations, can also communicate with GSM and GPRS stations. That will easily allow the integration of remote, isolated stations.

Short & Long Range

Throw in additional sites around your long range stations

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To economically expand the network we have designed the A723 addIT, a data logger with an integrated 10mW radio, that can transmit up to 1km. The valve controller A724 addSWITCH can be integrated the same way. This permits to,

  • install soil moisture stations around a weather station,
  • monitor frost with dedicated temperature sensors,
  • remotely open and close irrigation valves with the Adcon addTIMER and the addSWITCH valve controller,
  • and much more.





Move your mouse cursor over the dotted lines around the equipment to see more details!

Particularly in dense networks of monitoring points it is the better option to build a UHF structure.

But how to connect those few isolated sites far away from the radio network? No problem: throw in a few GPRS stations such as an A753, A755 or A757 GPRS - the A850 Telemetry Gateway and the addVANTAGE Pro software always stay the same!

The animation above shows how the same A850 Gateway collects data from all kinds of stations, be they UHF long range, UHF short range or GPRS stations.


Total integration - UHF via GPRS

Move your mouse cursor over the dotted lines around the equipment to see more details.

Now check out this animation above!

At first the A850 Base Station starts collecting data from UHF stations.

But then it communicates via GPRS with the RA440, which in turn collects data via UHF from some radio RTUs and sends it back to base again via GPRS. Now you can mix and match technologies as your topology and your infrastructure require!


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Adcon Telemetry, Inkustrasse 24, A-3400 Klosterneuburg, Austria, Europe
Tel.: +43 2243 38280-0 Fax.: +43 2243 38280-6 e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Adcon Telemetry is a business unit of Ott Hydromet GmbH in Germany.