please help improve this article by adding citations to reliable sources . unsourced material may be challenged and removed . april 2009 learn how and when to remove this template message satel industry telecommunications automation scada land surveying real time kinematic intelligent transportation systems telemetry founded salo finland 1986 headquarters salo finland area served worldwide products radio modems website satel.com satel is finnish radio modem manufacturer specialising in design and manufacture of radio modems for land survey scada traffic control and telemetry applications . contents 1 about the company 2 radio modems in general 3 products 3.1 serial and tcp ip communication 3.2 setup made easy with license free products 3.3 higher power longer range 3.4 keeps wind and weather 3.5 compatibility 4 external links 5 references about the company edit satel specializes in designing and manufacturing radio modems for long range wireless data transmission . the company was founded in 1986 . satel s first product was a wrist alarm shortly followed by production of the first radio modem . product development has been guided by emphasizing rf sensitivity and ensuring reliability and durability . both satel s product development and factory are located in finland . the distribution network of satel covers over 100 countries . approx 90 % of sales is exported . radio modems in general edit a radio modem transmits data over a wireless connection to another radio modem over a point to point or multipoint link . radio modems are independent of mobile and satellite network operators and no cost is thus associated with transferring data . private radio modem networks can use either unlicensed e.g. ism band or licensed frequency bands uhf vhf . the operation range of a radio modem varies depending on the transmission power antenna gain and mast height and environment . in rural areas a 1 w radio modem with a line of sight radio link may range over 20 km and even up to 50 km in exceptionally amicable environments . in dense metropolitan areas a corresponding range may vary from several kilometers to over 10 km . with a 10 w radio modem a range of up to 80 km can be reached in favorable environments . by using radio modem repeaters much broader areas can be covered . http www.satel.com products radio modems products edit serial and tcp ip communication edit the satelline radio modem family offers transparent serial data communication rs 232 rs 485 rs 422 . these products are used in applications ranging from mt everest to power distribution networks and from professional motor sports to runway telemetry at airports . lightweight satelline m3 tr3 tr4 modules are designed to be integrated into a host device for instance for transfer of gnss correction data in a land surveying rover or rtk base station . the satellar digital system radio modem family which was introduced in november 2008 broadened the offering to tcp ip based applications . it is based on a linux operating systems and enables customer specific applications . 1 setup made easy with license free products edit satelline 1870e and satelline easy 869 modems operate in the europe wide license free 868 870 mhz band . both have a maximum transmit power 500 mw which enables coverage up to 2.5 km . by setting up a network with repeater radio modems much longer distances can be achieved . the radio modems can accommodate point to point as well as point to multipoint communications . higher power longer range edit the radio modems of the satelline easy family are suitable for high end applications requiring a longer range . with these radio modems a reliable radio modem network can be built across vast areas . radio modems are available for both the uhf 330 473 mhz and vhf 135 174 mhz and 218 238 mhz frequency bands . the modems using the vhf frequencies are specifically designed for data applications where large distances with obstacles such as mountains and valleys are to be spanned . different channel widths 12.5 20 25 khz and data rates 9.600 19.200 bit s are available in order to meet both the needs of the system and the requirements of the local authorities . the transmit power is adjustable between 100 mw and 1 w. in addition radio modems with 1w 10w and 35w transmitter power are available . this allows transmission distances of up to several tens of kilometers depending on the environment and the used antenna type . typical applications include machine control utility distribution networks water facilities precision farming and land surveying . keeps wind and weather edit in many applications radio modems are used in the field and must withstand wind and weather conditions . offshore installations pose the additional burden of salt water and mist . in such harsh environments the satelline easy pro in its rugged aluminum case with ip67 rating can be used . thanks to the maximum output power of 25 or 35 w it can range up to 80 km at transmission speeds of up to 19200 bit s. compatibility edit as there is no de facto standard for long range narrow band data communication cross brand compatibility is an important aspect for radio modem deployers . in 2009 satel introduced product variants that are compatible with products from other manufacturers who use the so called pcc protocol . 2 external links edit satel homepage references edit http www.automation.com content hannover messe satellar linux radio modem the worlds first radio modem that is a linux based ip router http www.pobonline.com articles products bnp guid 9 5 2006 a 10000000000000566182 3 . http www.gim international.com news id4710 transceiver radio modem.html 4 . http www.hydro international.com news id3927 transceiver radio modem.html retrieved from https en.wikipedia.org w index.php title satel & oldid 689692348 categories electronics companies of finlandcompanies established in 1986finnish brandshidden categories articles needing additional references from april 2009all articles needing additional references navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 8 november 2015 at 21 13 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view