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Re:FCC Warns Portland Church to Shut Down Pirate FM Operatin... by pstuart on Saturday April 08, 2023 @04:51PM (#35497496)
Is this interference avoidable if using the right gear correctly?
Re:FCC Warns Portland Church to Shut Down Pirate FM Operatin... by RF_Enthusiast on Saturday April 08, 2023 @05:37PM (#35497883)
No, the analog signals would overlap.

In this case, KBOO on 90.7 is running HD format, which puts the lower digital shoulder at 90.5 MHz. So this station was operating on top of KBOO, compromising the KBOO signal. 90.5 - 90.6 MHz contained two signals, although the pirate operator didn't know that, as the digital hash sounds like static to the untrained ear.

Re:FCC Warns Portland Church to Shut Down Pirate FM Operatin... by Ekaros on Saturday April 08, 2023 @05:11PM (#35497677)
200 kHz isn't that much. One can easily observe the effect by slightly tuning off radio and still hearing something.