OlinuxIno-micro reboot due to proximity of GSM antenna.

Started by flavigny, October 01, 2012, 10:49:22 am

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flavigny

Hello,
I am working with a Gsm modem (Wavecom)
I let pieces on my destktop (the wild!)
It appears that if the antenna is near the board, OlinuxIno reboot as soon as I send a message.
at 30 cm away, I have no more problem.
I hope it is possible to build a shield around the OlinusIno-micro oard so that I have a have compact design.
Regards.
PO.

LubOlimex

Hello flavigny,

This problem in most of the times cannot be completely avoided. Depending on the GSM modem brand and the board this influence may vary from 5 to 50 cm.

This interference is caused by the fact that most GSM devices emit a lot of power (especially initially right before sending a message or starting a call) which is especially bad for the inductors.

Of course there are numerous solutions from replacing board elements with RF resistive ones to wrapping the board in tin-foil.

Regards,
Lub
Technical support and documentation manager at Olimex