Pull the 7.5' antenna cable to the ELT. To stabilize the cable close to the antenna I removed the middle bolt from the shoulder anchor attachment and installed a cushioned clamp on the cable using the bolt I just removed. Then I installed on the cable two cushioned clamps along the right upper longeron on both side of the F-707 fuselage bulkhead. This way I was able to create a steady loop around the bulkhead instead of drilling it (this would have required a 3/4" hole, not good) (see picture). This was a very difficult job due to the very tight space. Tomorrow I finish connecting the cable to the ELT.