Model: IC-28A/H Bulletin: B1104 Subject: Prevent birdies at 154.755 and 154.810 MHz 1. Cut the land between Pin 1 of IC-1 (MV87001-G) and R102 on the main board. 2. Install a 1 MicroHenry coil (1R0) between Pin 1 of IC-1 and R102 on the main board. 3. Install a .01 uf capacitor between Pin 1 of IC-1 and ground. 4. Cut the land between Pin 5 of IC-1 and C27. 5. Install a 1 Meg resistor between pin 5 of IC-1 and C27.