On Mon,5/29/2017 9:58 AM, Kenneth G. Gordon wrote:
Could be the monitor. In my case a new monitor caused considerable RFI.
I think that is the case here. I am going to attack the problem from that end
first.
Here's lots of practical advice on killing RX noise.
http://k9yc.com/KillingReceiveNoise.pdf
With your new shack computer, I suggest choking all the cables connected
to it, starting with the cable between the computer and the monitor, the
power cables, USB cables, etc.
An earth ground is vital for lightning safety, but does not matter for
noise, nor does it make antennas work better (except for RX antennas
that interact with soil to work). What DOES matter (a LOT) is proper and
complete BONDING. Bonding is the interconnection of the chassis of every
piece of equipment in your station, and the interconnection of that to
every ground in your home/building. That bonding is also critical for
lightning protection.
Proper grounding and bonding for ham radio is describe here.
http://k9yc.com/GroundingAndAudio.pdf
The material in these two tutorials are, in large part, the basis for
much of N0AX's new ARRL book on Grounding.
73, Jim K9YC
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