Charlie,
This is not the case. While medical equipment has a more strict rating for
leakage and other safety issues, it has a LESS stringent rating for EMC
emissions, unless it is also designated for home use. This is because the FCC
rating for equipment to be used in homes is more strict than for those limited
to the hospital setting. It is assumed that interference with TV/radio etc. is
less an issue in the hospital.
The ratings for EMC susceptibility (can't handle a nearby TX) is the same or
can be higher in medical equipment, depending on application. But hams seldom
have that problem with 12 V power supplies.
73,
Drew K3PA (Medical Systems Engineer)
-----Original Message-----
------------------------------
Message: 2
Date: Tue, 12 Nov 2024 08:33:28 -0500
From: <charlie@thegallos.com>
To: "'Barry W2UP'" <w2up.co@gmail.com>
Cc: <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] Switching Power Supplies
Message-ID: <045901db3507$757e0d40$607a27c0$@thegallos.com>
Content-Type: text/plain; charset="utf-8"
I never had an issue with my Samlex, even the older one, and of course my
linear Astron works fine, but is bit on the heavy side
If you want to get a really quiet supply, look for one that is rated for
Hospital Medical Equipment ? there is a EMC requirement that is very strict
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