Chapter 8 183
Hardware Options
Verifying Option 122 or 140, Wide Bandwidth Digitizer
Option 122 or 140 Lowband Filters
Figure 8-8 shows FL2, FL3, and associated cables. FL2 on Option 122
or 140 units is a 100 MHz BW filter. Non-Option 122/140 units have
40 MHz BW filters.
FL3 is added to suppress spurious responses since FL2 has such a wide
bandwidth.
Figure 8-8 Option 122 Lowband Filters