Downconverter Image Rejection Test

August 17, 2004

SETUP:
 LO: 400 MHz, -10 dBm (200 MHz actual LO)
 IF: 210, 220, 230 MHz (10, 20, 30 MHz baseband)

 Outputs (I/Q):
  - gain adjusted for ~80% full scale using spectrometer board
   software: gdiag -scope

  - image rejection tested using spectrometer board
   software: gdiag -cfft

Measured Image Rejection (dBm)
Board Serial No. Baseband Frequency
10 MHz 20 MHz 30 MHz
SAMPLE474042
0A464440
0B484036
1A484035
1B484041
2A504537
2B504434
3A504542
3B423531
4A433632
4B383633
4B'423833
5A484536
5B504040
6A464034
6B484643
7A474237
7B504134