This is a simple build-it-yourself device that allows you to test whether a cable is shielded or not. The device is easy and fast to use, however, depending on the connector type you are dealing with, you need a connector or adapter to get access to the signal lines. There must be nothing connected to the other side of the cable.
The design is based on an ATtiny84 micro-controller so you will need a programmer for it to build your device. (Any of the ATtiny24, ATtiny24A, ATtiny44, ATtiny44A, ATtiny84, ATtiny84A will work.)
This video shows the test of an unshielded cable (play with sound!):
1_unshielded.mp4
More tests can be found here.
Build instructions are in the hardware directory.
Discus at the EEVblog Forum