Jim this description is spot on. If you live in a neighborhood, take a
good portable battery operated receiver (FT817, KX2, etc) with a wire
hung in your backyard. Take readings of noise floor, birdies, etc of all
your bands you use. Then go to a forest and do the same. It will blow
you away at the difference. Done it many times. First time I did that
years ago with an FT817, thought surely something must be wrong with the
rig. Rig was fine.
Chuck
W4NBO
On 6/18/22 21:27, Jim Brown wrote:
On 6/18/2022 5:25 PM, David Hale wrote:
oh of course! Why didn't I think of that?
Another fellow also responded privately with a model from Home Depot
that
he uses with success, Commercial Electric model CER6730MWH27
Most hams are bathed in RF noise from all the stuff in their homes,
and the homes of their neighbors generating trash that we don't
realize how noisy any individual product is. For that reason, I NEVER
trust observations that a device is quiet unless I know that the ham
has carefully probed it with a battery operated radio held very close
to it, and to all wires connected to it. These links talk about how to
do that.
http://k9yc.com/KillingReceiveNoise.pdf
http://k9yc.com/KillingRXNoiseVisalia.pdf
73, Jim K9YC
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