Confirmed approximate lengths of RG400 coax required to run from the control panel area to the 7 different antennas in the tail cone area:
Cut coax cables for each of the 7 antennas to lengths determined
Pulled all 7 RG400 cables into a single conduit running from the tail cone just behind the baggage bulkhead forward to the control panel area. Staggered the ends of the coax by about 1 inch between the end of each from the previous, and taped them together tightly with electrical tape, then taped to the pull string previously run in the conduit. Pushed the coax bundle into the conduit from the back. Had to remove the conduit from the side holes in order to keep it fairlly straight in order to get the cable to move forward. This was a very tight fit, so had to push from the back and then pull from the front, allowing the conduit to compress/expand and move the cables forward about 1-2 inches at a time. Had to cut the conduit in the sidewall area once the cables refused to move forward any farther, and then pull them through the conduit they were in. At this point, reinstalled the conduit with cables into the hole in the rear seat floor rib with the bend. Then pushed/pulled them through the second conduit piece to get them to the front panel.
Tested the BNC connector installation process on a short extra piece of RG400. Found out that the coax stripper I have for use with cable TV coax will not work for stripping RG400. Carefully stripped the RG400 by hand, then crimped the connector as outlined in the AMP video from their website. Checked for continuity and no shorts with an ohm meter and determined that I had a good BNC connector installation. Ordered a new coax stripping tool for the RG400 cable (Greenlee 1255 LC-CST Stripper) from Amazon per recommendation of another builder.
