If you have an MRI with a very powerful shielding that attenuates even the signals transmitted (c the rest )?

FROM A WIRELESS PATIENT MONITOR INSIDE THE MRI ROOM, HOW CAN I BOOST THE WEEK PATINET MONITOR SIGNAL THAT IS REACHING THE CONTROL ROOM (PLEASE ANSWER IF U HAVE A PROPER ANSWER ) .

If you have an MRI with a very powerful shielding that attenuates even the signals transmitted (c the rest )?
Many possibilities:





Boost it? Just amplify the signal. Can you get inside its circuitry? Can you get a schematic for it?





The patient monitor transmitter is probably omnidirectional or close to it. If its location can be fixed during the MRI, you could use a directional antenna on the transmitter and gain 20 to 30 dB. You'd then have to point the transmitting antenna towards the reciever.





Likewise, the recieving station is probably omnidirectional and could be made directional, but only if it is monitoring just the one patient.





Simplest would be to move the transmitter and receiver as close as possible, just on opposite sides of the MRI room's wall. See if that is enough.





Trickiest would be some modification of that shielding wall for a wave guide. To pipe the radio frequency through the wall. Hobbists use plastic pipe with metallic paint on the inside. By take one or 90-degree bends within a shielded box, you could prevent MRI EMF from getting out while guiding the patient monitor signal from transmitter to receiver.





The MRI manufacturer or installer may have encountered this already. Or the patient monitor manufacturer.





Invite in a local Ham Club to check out the facility and the problem. Those guys are often very very knowledgable, retired and donate their time for various good causes. Call your local EMS, Red Cross or County disaster co-ordinator. They work with volunteer Hams during real and simulated disastors.





Hope some of that helps.

hibiscus