Continuous RF malicious interference effecting our 147.435 repeater began at 5:15 PM on Tuesday October 18, 2016 and continued until 7:37 AM today Tuesday October 25 when the equipment was removed by authorities.
Jamming of 435 (rebroadcast of Spanish speakers and data) began around 5:15 PM. Audio and surveillance from 3:00 – 6:00 PM have been collected.
Email sent to enforcement team and others; no RF fingerprint matches with known jammers; ruled out the usual suspects; it became clear this was a serious outside attack.
Bearings and early T-hunting began. We decided to leave the repeater on and not activate anti-PL mode so that people were aware of the jamming. 463.625 MHz was identified as the commercial channel being rebroadcast by the jammer onto 435.
Full enforcement began, over 10 people involved. T-hunting determined Mount Wilson was the source. A plan was made to visit Mount Wilson on Sunday for the intercept.
Word of our problem got out and numerous calls and emails came in from non-435 commercial and amateur individuals offering help, bearings and suspects.
A 435 enforcement team visit to Mount Wilson located the commercial shelter and specific antenna on the tower that the malicious interference was emanating from.
We engaged with the company that owns the offending shelter and scheduled shelter access for Tuesday. They were very supportive on taking immediate action. FCC and local law enforcement were engaged and “very interested.”
Today, Tue 10/25:
All the parties met with the commercial site manager at the shelter. The offending equipment was located and confirmed as not authorized to be in the shelter. The equipment was removed for law enforcement investigation.
The work continues. Federal and local law enforcement are interested and engaged. The equipment and other evidence will be examined, suspects interviewed, etc.
There are many juicy details that can’t be discussed while law enforcement is underway.