[R-390] R-390A and GFI

[hamfish at comcast.net]

Good Afternoon Jim,

Another thought comes to mind, do you need the original R390/A line filter
(FL101)? Most of today's interference is by way of the antenna input, RFI.
Line noise is better dealt with by finding that source and unplug it. FL101
is what trips GFIs because of leakage of the caps inside of said line
filter. So power the R390/A (with no antenna connected) through an outlet
that does not have a GFI, is there noise? If there is no noise, at this time
a FL101 or equivalent is not needed. Remove FL101 and be done with it. If
there is noise, the search begins. Might be easiest to unplug the source,
maybe ferrite thingies, or a line filter mentioned by the rest of the long
distant R390/A service dept. 

If noise is by way of the antenna input....................welcome to
today's world.

Regards,
Craig

-----Original Message-----
From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> On
Behalf Of Jim
Sent: Monday, March 25, 2024 9:58 AM
To: R-390 at mailman.qth.net
Subject: [R-390] R-390A and GFI

I'm in a new location and when I plugged in my R-390A it tripped the GFI's
in the room.
I see that there is a modification to the 390 AC filter, but time is short
and I would like to get it on the air.
Is there a simple way to keep the 390 tripping GFI's?

TNX
Jim
WB2TPS
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