Hi Jeff,
That is why I said it was not scientific... If you look at the photo of
the test setup, you will see the sampling antenna, that is why I added
the photo of the test setup, to show how it was sampled...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
I never learned from a man who agreed with me. (HeinLein)
On 7/30/24 01:59, Jeff Blaine wrote:
Dave,
I agree - any excuse to use a SA is a good one (the VNA falls into that
same category here).
For your page, what would be helpful is to understand how you were
sampling the gadget. The reason i ask is that just about anything
modern has a SPS and that is going to make a detectable RFI pattern.
What's most important in my view is how strong that radiation is. If a
1" bit of wire on the SA input at 10' gives a NF+60 dB print, then
that's trouble. But if you had to make 20 turns of wire around the
power cable of the device and use the SA preamp to get the same 60 dB
SNR, then that's a different story. Curious.
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
On 7/30/2024 12:56 PM, Dave (NK7Z) wrote:
Hello,
As promised, here is the link to my new Keurig Coffee Maker Classic,
as seen by my new spectrum analyzer. I have been itching for a chance
to use this baby...
https://www.nk7z.net/rfi-snapshots/major-appliance-rfi/
Scroll to the bottom of the page, there you will see the Keurig
on/off, and a shot of the test bed. It is not scientific, nor was it
intended to be... Just an excuse to use the new SA... :)
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