how to measure RF signal easily

[hansfryko]

I want to know how we can easily measure MRI RF power.
when there an error in Transmit chain, we usually use RF amplifier measurement kit. that kit is expensive and bulky, sometimes it take days for that Kit to arrive.

I was wondering, can we put some device with an antenna. put that antenna inside the scan area. do scan, and see some readings.


do you happens to know how to do it easily? I don't need the exact wattage of the RF power, just to know if the RF transmitting or not

Thank you