I also bought one of those nice looking FM transmitters, wanted to
forward stuff to my 12 acres while tractor mowing..
Put a spectrum analyzer on it ... wondering how clean.
What I found was a signal in the aircraft band MUCH stronger than the
carrier in the 90 mc band. Would not have been a good idea to put this
on an antenna!!!!
made it gone....
On 2/2/2022 11:44 PM, Jim Brown wrote:
On 2/2/2022 7:06 PM, nm8rmedic via RFI wrote:
There is no sports talk FM station in the area.
There are Part 15 FM modulators designed to provide an analog audio
input to an FM radio, usually in a vehicle, as well as higher power
products that violate Part 15 intended for pirate radio. I've used
several of the former to pipe music around my 8 acres and between
buildings, and I bought one of the latter hoping for better
performance. Instead, I got spurs that trashed the FM band. Never
bothered to look for trash elsewhere.
Can you look at its spectrum and/or waterfall? Inexpensive SDRs are a
great way to look at all forms of RFI.
73, Jim K9YC
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