My 200 hangs on a wall, so I took a slightly different approach, finding an SMA connector, coax etc. in MX is a fools errand, so I clipped the antenna wire about one half inch from the board so I still had a lead to solder to, removed the antenna, drilled a hole in the bottom of the short section, threaded a small wire and soldered it to a piece of coat hanger wire, about half an inch from the end, slipped the soldered portion back up into the antenna and epoxied it in place, then reconnected the lead.
With the new "antenna" sticking out of the original, you can rotate it to position it pointing up, or down from the unit. I tried up, didn't work, so went to down and it's working great.