My Olympus DS-2 is pretty bad. In either play or record mode, I get wide processor noise on both 2m and 435 if it gets within a foot or so of the Arrow (in any direction). It sounds like power-line buzz noise. If I use a direct line-in (FT-530 ear to DS-2 Mic in), it's there all the time -- really bad.
My goal is to "y" the stereo mic in, one side to the FT-530 audio coming from my headset, and one side to an external mic (so I can hear the difference in play-back between what I say, and what I can hear on the downlink).
With the FT-530 in one hand, the Arrow in the other, pen and paper is not an option. I also want to download the recordings (.wma or .mp3) so an analog recorder, although "rf quiet", is not an option.
I plan to try shielding the recorder.... encasing it in either metal mesh, or maybe an aluminum fly-lure box, and then wrapping the line on a toroid core.
In the mean time, is anyone using and can recommend a portable digital voice recorder with a mic-in jack (preferably stereo) that is "rf quiet"?
Bill W1PA