Re: [SI-LIST] : EMI Measurement

ed_crean@smtplink.spectrian.com
Wed, 25 Mar 98 13:59:13 -0800

I am designing a high speed A/D converter assembly that will be in close
proximity to high power cellular signals (869-894 MHz). All the normal
precautions were taken to prevent the intrusion of RF into the CCA.

In order to meet system requirements, 105 dB of shielding is required. Does
anyone know of an effective way to measure the shielding effectiveness? The
assembly has SMA inputs for the 881 MHz receive signal and a DSUB connector for
power and I/O. I am interested in measuring the loss at 881 MHz from the SMA
connector to I/O connector and visa-versa.

Thanks,

Ed Crean
Systems Engineer
Spectrian Corp.