[Elecraft] RFI issues
Jim Brown
jim at audiosystemsgroup.com
Wed Feb 19 18:50:46 EST 2020
On 2/19/2020 7:12 AM, Gmail - George wrote:
> Andreas,
> You might want to go to the station and talk the the Chief Engineer. If he
> is the nice-guygal type CE he will help you (Not al CEs are the nice kind
> but most are).
Maybe in 1960, but no way in 2020. Besides, it is quite unlikely that
these stations are causing your problem, but as has been observed, a
simple LPF inserted in the antenna will prevent those TX from hitting
your RX.
George is right on about antenna directivity and the spectrum analyzer
display.
As I observed earlier, the FAR more likely source(s) of your noise are
dozens of switch-mode power supplies in your home and the homes of each
of your neighbors, other equipment that includes power control
electronics, and equipment that includes microprocessors.
This link can query the FCC website to see technical details for any
broadcast station in the US. https://www.fcc.gov/media/radio/am-query
73, Jim K9YC
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