APM & Radio & FatShark & OSD

thingiverse

For my quadcopter, I have mounted various cards in a 55x55 configuration. Among these are an APM 2.6 (http://store.3drobotics.com/products/apm-2-6-kit-1), telemetry module (http://store.3drobotics.com/products/3dr-radio-telemetry-kit-433-mhz), and Minim OSD (http://store.3drobotics.com/products/apm-minimosd-rev-1-1). Additionally, I have a FatShark AttitudeSD FPV Headset System with 5.8GHz transmitter (hobbyking.com/hobbyking/store/__28750__FatShark_AttitudeSD_FPV_Headset_System_w_5_8G_TX.html). I'd appreciate feedback on my design, as it is still a work in progress. I have completed several tests and performed the compassmot setup (http://copter.ardupilot.com/wiki/ac_compasssetupupadvanced/). There was only 3% interference detected, which I consider acceptable. The compass is positioned approximately 20cm away from the ESC. One issue I encountered is that the USB connection to the APM can be a bit tight, so I may need to update my design accordingly.