10-5
Determining System Measurement Uncertainties
Determining Expected System Performance
Determining Expected System Performance
Improper connection techniques and contact surfaces can degrade measurement accuracy.
Proper connection techniques include using a torque wrench with proper torque limits,
ensuring that the connector pin depths meet specifications, ensuring that the center
conductor of sliding loads is properly set, and observing proper handling procedures for
beadless airlines.
Contact surface errors are caused by improper cleaning procedures, scratches, worn
plating, and rough seating.
If proper connection techniques and connector care is observed, Table 10-1 provides an
indication of connector repeatability.
Table 10-1 Connector Repeatability (R
R1
, R
R2
, R
T1
, and R
T2
)
Connector Type Connector Type
Frequency Range Repeatability Frequency Range Repeatability
2.4-mm 3.5-mm
0 to 2 GHz 0.0002 0 to 2 GHz 0.0001
2 to 20 GHz 0.0004 2 to 8 GHz 0.0003
20 to 36 GHz 0.0006 8 to 20 GHz 0.0006
36 to 40 GHz 0.0008 20 to 26.5 GHz 0.0010
7-mm Type-N
0 to 2 GHz 0.0001 0 to 2 GHz 0.0006
2 to 8 GHz 0.0003 2 to 8 GHz 0.0006
8 to 18 GHz 0.0006 8 to 18 GHz 0.0010
Type-F Waveguide
0 to 3 GHz 0.0006 0 to 40 GHz 0.0002