Hello, folks. I need to run my dual band base unit from the basement to an outdoor antenna without running the coax through three floors and a wall. I also don't want to drill through the foundation or a metal window frame. I've seen a "flat" coax connector 20 cm, SMA both ends, that allows a window to close down on it presumably without compromising the signal. Sounds like the answer but I was hoping for a few opinions. Thanks!!