[Amps] pacemaker and hf amplifiers qstions

[Will Matney]

Bill is correct on this. The reason I know a little about it is because 
my Grandpa and a friend had one. The thing is about Pacemakers, there's 
no way for them to be shielded by themselves (no path to ground). This 
was some years back so they may or may not have changed. Back then, 
microwave ovens had just gotten popular, and the price dropped, so 
everyone was buying them. That was a big concern at that time. I did 
repair work for North American Phillips on TV sets (Philco, Sylvania, 
and Magnavox), and we got a flier about this if we worked on any 
microwave ovens. About that time is when the microwave sniffer probes 
became a hot item to check the cabinets for leakage. A strong electrical 
field, or any RF field that is strong enough, could cause the pacemaker 
to fire pre-maturely or not fire when needed. There supposed to have 
been advances in them but for what I do not know. I would start by 
contacting her doctor about this and get the info for the manufacturer. 
The doctor may have the information there, or will tell you who to 
contact. My biggest concern rather than the equipment is the antenna, 
and the proximity to it. If I'm not mistaken, there was something about 
pacemakers and high tension power lines too. This would be a similar 
item, just a different frequency. It's way better to be safe than sorry.

Will Matney


Bill Turner wrote:

>On Fri, 12 Nov 2004 12:06:35 -0800, J.Hector Garcia M wrote:
>
>  
>
>>i have a very important question  abouth the pacemakers and  the possible problems that the RF from my amps can  affect my grandmother  pacemaker, she live with us and   she receive one the past week,
>>    
>>
>
>_________________________________________________________
>
>If I may respectfully suggest, something this important should not be
>left to the members of this group, no matter how well intentioned they
>may be.  You should contact the manufacturer of the pacemaker and get
>the information from them.  They will probably tell you "no RF at
>all", because they want to cover themselves, but you should press for
>copies of their test results.  Don't take no for an answer.
>
>And good for you for being concerned.
>
>--
>Bill W6WRT
>
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