32
Keysight 87406Q Operating and Service Manual
4
Installation and Verification
Quick check procedure
1
Connect one port of the switch to Port 1 of the network
analyzer and one of the outer RF ports to another port of the
network analyzer as illustrated in
Figure 4- 1
.
2
For standard drive, apply ground to the corresponding “drive”
pin to close the selected path. Refer to
“Driving the Switch” on
page 14
.
3
For TTL drive (option T24), apply “High” to the corresponding
“drive” pin to close the selected path. Refer to
“Driving the
Switch” on page 14
.
4
Perform the S- parameter measurement and verify against
“Supplemental specifications (cold switching)” on page 21
.
5
Repeat steps 1 to 4 until all paths are measured and verified.
Performance test
The coaxial matrix switch can be tested to the accuracy of the
specifications with a network analyzer or equivalent equipment of
suitable accuracy. If a network analyzer is available, test the
instrument using the procedure in the analyzer’s operating manual.
Service instructions
Adjustment and repair
Keysight 87406Q low PIM coaxial matrix switch does not require
internal adjustments and are not recommended for repair.
N O T E
If any of the low PIM coaxial matrix switches fails within the warranty period, a
new unit will be replaced. Refer to
“Replacement units” on page 33
for more
details.
