Ed Bailen wrote in message . ..
My wife recently had a defibrillator implanted. The folks that
manufactured it kindly sent her an email discussing the varoius bands
and field strengths it had been tested against E field and H field).
She is concerned about exposure to RF both from our mobile VHF and HF
operations, and from the un-shielded multi-gigahertz processors in her
lab. We would like to come up with an absolute (not relative) field
strength meter that we can use to evaluate field strengths (mainly E
field) at various frequencies. I could not find anything on Google.

I can cobble something together wirh an antenna, a tuned front end, a
detector, and a peak sampler, but how to calibrate it?

Any suggestions?

TNX Ed Bailen - N5KZW

Hi Ed,
I dont think you can, not without accesss to the proper gear in a RF
shielded room (anechoic chamber?). But, and this is an educated guess,
the defibrillator would be constructed to withstand fairy massive RF
fields - ie, if you lived at the base of a 100Kw TV/ tranmitter. The
only practical thing I can suggest is, as most of these devices can be
monitered via an external pod to check operation, get your heart
specialist to have his monitoring gear on it while you fire up HF/VHF
whatever gear - you might have to do a bit of smooth talking, but what
other option is there......

I have a friend who is in a similar position, he was a TV service tech
and was told not to work on the back of TV' s because of the radiation
from the line output stage - sounds a bit like bull****, but then no
manufacturer is EVER going to say its safe to do this as it would
expose them to litigation if it didnt - sort of like dont ask the
government for pernmission to do anything as they will always cover
their backs and say no.

73 de VK3BFA Andrew.

PS - hope your wife is ok, at least she knows if anything happens it
will kick in and do a "cold restart"