The cable's I got with them are havin very loose connection, One of my QLXD recievers are constantly switching of, or don't even power on till I try to plug it in again. Of course it's not an easy task if it's built in in a rack. The other thing is. It's quite hard to build it in, and fix it, as the hole for the screw and the antenna connector are so close to the eachother, that I only can push it in to the rack railing, if I use a lot of power trying to bend my rack outwards.