Does anybody know how the antenna in the N800 headphones is implemented? Are they using the ground conductor as the antenna, are they using the two headphone lines as a dipole antenna, or what? There are 2 reasons I ask: first, I'd like to be able to do a calibrated sensitivity check on the FM receiver, which means I need a proper RF interface to inject the signal from my sig-gen on. Secondly, I work in what can best be described as RF hell (as you might deduce by the fact that I have ready access to a calibrated RF sig-gen), and I'd like to be able to couple my external antenna drop into the N800.
