I worked for a cable company as the sysadmin. They were having trouble with channels going off randomly but most often in the morning and evening. One day in the middle of the day I’m out there with all hands on deck discussing the problem when one of the employee’s showed up in his older GM truck. Just as he arrived the channels went out and they jumped on the scopes and cable meters to start looking for the problem. He got out it stopped. We all stood around for a few minutes saying it was going to be a long day if we couldn’t figure this out. After a little bit he was instructed to go back to burying drops on his schedule. The second he cranked up the problem started. He drove off and it stopped. Three of us just looked at one another and we called him back. Sure enough as soon as he drove up the problem started. He was given instruction to not drive past the office gate and the problem went away. As to what on that old truck was throwing out all the gigahertz interference we may never know. That truck was gone withing a week.
I can’t say if the frequency is right, but poorly shielded spark plug wires will send all kinds of EM out. You know, the older cars where if you touched one of those wires you’d feel it, or you could see the aura if it was dark jumping around.
I worked for a cable company as the sysadmin. They were having trouble with channels going off randomly but most often in the morning and evening. One day in the middle of the day I’m out there with all hands on deck discussing the problem when one of the employee’s showed up in his older GM truck. Just as he arrived the channels went out and they jumped on the scopes and cable meters to start looking for the problem. He got out it stopped. We all stood around for a few minutes saying it was going to be a long day if we couldn’t figure this out. After a little bit he was instructed to go back to burying drops on his schedule. The second he cranked up the problem started. He drove off and it stopped. Three of us just looked at one another and we called him back. Sure enough as soon as he drove up the problem started. He was given instruction to not drive past the office gate and the problem went away. As to what on that old truck was throwing out all the gigahertz interference we may never know. That truck was gone withing a week.
I can’t say if the frequency is right, but poorly shielded spark plug wires will send all kinds of EM out. You know, the older cars where if you touched one of those wires you’d feel it, or you could see the aura if it was dark jumping around.