Vendor Notes as of 03-26-06:

Over and above the Manufacturer's boastful graphs, charts, and statistics, here's some real-world feedback that I have gleaned from several sales of the new "RF Rejecting NC3FXX-EMC / NC3MXX-EMC.

1. The technology is simple; it's basically a congiguous shield with
signal and chassis ground connected to some high frequency surface-mount capacitors.

2. I've been told they're hard (not impossible) to work with.

3. Although I'm a "purist" at heart,  and believe in solving problems, rather
that workarounds, an RF shield for an entire room is obviously not practical in most circumstances. Having made three small sales since receiving my first shipment about two months ago, I have two reports of genuine success:

BOARDROOM - using Shure mic eliminated RF using FXX-EMC side only, along with some chassis grounding at the panel side.
RECORDING STUDIO - here in Nashville, next to a radio station, Microtek-Gefell mic, nasty RF totally eliminated using Mogami QUAD (
AA/BB standard common mode type wiring), along with both NC3FXX-EMC, and NC3MXX-EMC at connection points.

4. Although not guaranteed to work, definitely recommended to try.

Mark Nadlin
Green Dot Audio Electronics
Nashville
615-366-5964
greendotaudio@bellsouth.net