I know questions regarding Z antenna have been asked before but I've not seen any answers for my problem yet. My antenna motor works fine but the mast wouldn't work due to a broken mast line. I located similar sized mono filament trimmer line and tried replacing the original plastic/nylon cable. The issue is reconnecting the top antenna portion to the new cable. I've tried recreating the original connection (a round metal collar) but noting I've tried clamps well enough to not come loose. Also, the diameter has to be small enough to be pulled into the top portion of the antenna. I'd hate to toss an otherwise good unit and buy a non original replacement but I can't pay from $400.00 to over $4K (outragious on ebay) for an original. Any ideas?