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Re: [Amps] Experience with Heart Pacemakers?

Subject: Re: [Amps] Experience with Heart Pacemakers?
From: "Roger (K8RI)" <>
Date: Sun, 07 Dec 2014 13:30:37 -0500
List-post: <">>
On 8/2/2014 4:47 PM, Dave AA6YQ wrote:

As I said below, You can research it on-line as most manufacturers have sites and pamphlets.and always ask your physician..
SOME of the older ones were bothered by high power HF.
Some, like mine use a 900 MHz link for programming.

As there are few places you can go anymore without being immersed in WiFi, the manufacturers have to be careful with WiFi immunity, but it's NORMALLY a very low intensity even close to a legal router. Make sure your devices do not exceed the power level required, or mandated.

If you are a ham facing the implanting of a Defib or pacemaker, just specify what you want. There are physicians out there who do not accept that kind of input. If you have one, I'd change physicians and now days that can tale a long time. Mine retired and it took over 9 months to find and get established with a new one who is quite open to working with his patients. Hope you have an insurance plan that lets you keep your physician if he/she is a good one. (in our 70s my wife and I really needed that maternity coverage) <sheesh>

Thank goodness We still have the manual voting that has a record and can't be hacked.
My degree is in CS.  I do not trust electronic voting, or the cloud.


Roger (K8RI)

I don't have a cardiac pacemaker or defibrillator installed, but as part of the effort to 
introduce wireless electronic voting to our (New England) Town Meeting, I addressed 
concerns with the use of WiFi voting handsets by directly contacting major implanted 
device manufacturers like Boston Scientific and Medtronic.  Each provided me with 
explicit constraints for their devices; I didn't ask, but suspect that they each have an 
answer to the "what about HF power amplifiers?" question. I suggest that you 
contact them and ask.


               Dave, AA6YQ

-----Original Message-----
From: Amps [] On Behalf Of Roger (K8RI)
Sent: Saturday, August 02, 2014 4:09 PM
Subject: Re: [Amps] Experience with Heart Pacemakers?

On 8/2/2014 1:28 PM, George wrote:
My Cardiologist has recommended that I consider having a Pacemaker installed.  
After reading some of the pamphlets from a couple of the Manufacturers, I came 
away with the impression that they don t mix well with higher power RF 
I have a Defib/pacemaker.  The "only restrictions are no cellphone in my shirt 
pocket and when welding (yes welding) route the cables away from my core, IOW bring 
them in from the side or above (away from me).

I run the legal limit with an amp capable of 2500 PEP and no problems.

There are the two problems mentioned, but typically a transformer has no where 
near the magnetic field associated with welding and unless it's a home brew amp 
with an old transformer I'd not expect any problems.

HOWEVER There is a difference in pacemakers.  Go on line and check pacemakers and 
susceptibility to RF.  You may have to phrase it several ways to find the best.  "I 
think" mine has something to do with the Cleveland Clinic.  At any rate, it was the 
highest rated for immunity to the two issues.

When I asked my cardiologist, they gave me several pamphlets describing the 
susceptibility and immunity for a number of pacemakers and a tutorial on 
welding while wearing a pacemaker.

I've done a lot of welding, cutting with a plasma torch, and hamming with the 
amp running for over 10 years now with no issues.

You should be able to get one installed that will let you run the ham station.  
I would stay away from the antennas when someone is transmitting.  IOW, don't 
climb the tower to check the field strength when someone is running the rig 
just short of tilt and stay away from the ends of your 75 and 160 inverted Vs

73 and good luck,

Roger (K8RI)

I be interested in hearing the experience of those with this dilemma   both 
ways i.e.

What amps do not interfere with  which Pacemakers?

What Pacemakers do best with most amps?

Maybe there is a thread on this subject but I didn t notice one?

Either online or off is okay.

Hate to think about giving up my DXing hobby with QRO!

73  George  W8UVZ
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