Kenosha Reuse Discussion Board > RACINE, WI
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> Maxon DM200 433MHZ transciever packet radio modem 10W
Maxon DM200 433MHZ transciever packet radio modem 10W
If you want to see some nice pictures of the internal parts
Well I know little about these.!
Although I am adding more info as I find it !
They were used for Data transmission
Pulled from a working enviroment
If you know more about these than me
then please do not hesitate to let me know.
as much information about these as possible
Information discovered so far.
* UHF 411 - 428Mhz Narrowband
* 0.1 - 10W (Automatic adajustable in 1db steps)
* Article 3.1 (a) (Saftey) EN60950
* Article 3.1 (a) (Health) ECR1999/519/EC
* Article 3.1 (b) (EMC) ETS 200 279, ETS 300 339
* Article 3.2 (RF Spectrum) ETS 300 113
* Rugged casing - cast aluminium for long life in harsh enviroments.
* Conforms to IEC 529 standard for resistance to extremes of heat and vibration.
* Certified to IEC 529 level IP54 for dust and water ingress.
Perhaps I need to take the top off one and see what the processor is on the board.
Ok Top off.!! Nice one, only 4 screws...
The unit is internaly designed in two parts.
The Radio board and the procesor board.
There are two, twelve way, easy split connectors that join the two boards.
Processor is a NEC D70320GJ-8 running at 16.384 Mhz
Main Program Memory is an Atmel AT29C020 device..
There is a few other parts on there like 93C46 (eeprom)
Makes me think that with a little bit of thought these radios could be used for other purposes.
They are after all, simply a 10W 400Mhz (400 - 460 within spec) Data transceiver.
What else could they be used for?
* Perhaps adapted to make a powerfull frequency jammer,
* 10W at 433Mhz now that would stop your car remote control working,
* Perhaps modified to cook chickens in the dark,
* and maybe even used as what they were intended for.!
If you want to see some nice pictures of the internal parts then visit THIS page.
You can also download the datasheets I have collected from the net if you feel like it.
Here's a bit more I just found. ( more intresting than great information )
Most of the major radio manufacturers produced their own designs,
but the Maxon DM200 for the Mobitex network was a typical example that
included a flexible radio design and a baseband modem with on-board packet
processing hardware coupled with a powerful processor to control the higher
protocol layers. In this design the CML Microcircuits CMX909 IC was used as
it combined not just a "data pump" but also included the bulk of the data
formatting, encoding and error correction that was a major factor in the
success of the Mobitex network, providing secure and reliable data
communications. Other implementations used a combination of programmable
DSPs and high powered processors, and although produced in some quantity,
never really achieved the required volume to bring their costs down to
suitably low levels and all suffered from high power consumption.
Mobix has extensive expertise in implementing software for Mobitex modems.
For example, Mobix provided the full Mobitex stack for
Maxon's 400Mhz DM200 modems as well as its new modems.
Marconi/GPT used Mobix software to develop 900Mhz Mobitex
modems for Coca-Cola vending machines.
