Electronic Calibration Modules Reference Guide         5-3
Specifications and Characteristics
Electrical Specifications
Electrical Specifications
Electrical performance for RF and microwave ECal modules are provided in the 
following tables, which describe warranted performance that most units 
exhibit.
N755xA Series
ECal modules reflection parameter performance applies to each of the 
ports.
Table 5-3 Electrical Performance for N755xA (3.5 mm)
a
a. When applied power exceeds –10 dBm, calibration results will be degraded from the performance indicated in this table.
Parameter Frequency Range
DC to 
500 MHz
500 MHz 
to 4 GHz
4 to 6.5 
GHz
6.5 to 9 
GHz
9 to 14 
GHz
14 to 18 
GHz
18 to 26.5 
GHz
Directivity (dB) 42 36 36 36 36 36 36
Source Match (dB) 37 30 30 30 28 28 27
Reflection Tracking (±dB) 0.13 0.13 0.18 0.18 0.25 0.25 0.30
Table 5-4 Electrical Performance for N755xA (Type-N 50Ω)
a
a. When applied power exceeds –10 dBm, calibration results will be degraded from the performance indicated in this table.
Parameter Frequency Range
DC to 500 
MHz
500 MHz 
to 4 GHz
4 to 6.5 
GHz
6.5 to 9 
GHz
9 to 14 GHz 14 to 18 
GHz
Directivity (dB) 42 36 36 36 36 36
Source Match (dB) 37 30 30 30 28 28
Reflection Tracking (±dB) 0.13 0.13 0.18 0.18 0.25 0.25