Downconverter LO Isolation Test

August 20, 2004

SETUP:
 LO at -10dBm into downconverter LO In
 Spectrum analyzer connected to downconverter IF In
 Using quadrature downconverter board S/N: 6A

LO input frequency Downconverter gain setting LO leakage to IF LO/2 leakage to IF
400 MHz 0 -72 dBm -88 dBm
255 -72 dBm < -90 dBm
600 MHz 0 -72 dBm -88 dBm
255 -72 dBm < -90 dBm
800 MHz 0 -62 dBm -88 dBm
255 -62 dBm < -90 dBm