Post by Deleted on Aug 8, 2016 20:32:21 GMT
There's been lots of talk surrounding compliant Part 15 (and BETS-1) FM transmitters, both here and on Part15.us. Unfortunately, the only way to tell if even a certified transmitter is compliant is to measure its field strength. And to do that, you need a FIM (Field Intensity Meter).
I know that the Potomac FIMs are good hobbyist (and even professional) instruments, but they, even if am accurately calibrated one can be found, are expensive (in the thousands of dollars range).
I was wondering if there were any semi-affordable (i.e., $500-1000) FIMS out there that could be used by hobbyists, but perhaps not professionals? In other words, that would be accurate enough (perhaps within 10-25% or so). I look on e-bay and see a wide variety of FIM's and FSM's (Field Strength Meters) but really have no idea what might fall into that category. I suspect the catch with most of the ones I've seen is the unknown calibration status.
Comments?
I know that the Potomac FIMs are good hobbyist (and even professional) instruments, but they, even if am accurately calibrated one can be found, are expensive (in the thousands of dollars range).
I was wondering if there were any semi-affordable (i.e., $500-1000) FIMS out there that could be used by hobbyists, but perhaps not professionals? In other words, that would be accurate enough (perhaps within 10-25% or so). I look on e-bay and see a wide variety of FIM's and FSM's (Field Strength Meters) but really have no idea what might fall into that category. I suspect the catch with most of the ones I've seen is the unknown calibration status.
Comments?
