Before the plug on the cable ends. You can also make all CAT5 cables have about 5 turns of cable as a choke coil at each end too if you have enough slack. Shielded cable will help too. No need to ground it. I would focus on anything near the transmitter and FM transmitting system.
From: CBB - Jay Fuller Sent: Tuesday, January 23, 2018 12:07 PM To: [email protected] Subject: [AFMUG] ferrite beads / radio station we are collocated with a radio station in another town that has been causing our ethernet speed to drop to 10 meg. i know we've discussed ferrite beads - - how should they be replaced on the cable to try to eliminate the noise causing us to negotiate at 10 meg? thanks the station is a low power fm - under 100 watts
