User`s guide

Specifications and Characteristics 11
N1911A/1912A P-Series Power Meters User’s Guide 255
• The second group of characteristic types describes 'statistically' the
aggregate performance of the population of products.
These characteristics describe the expected behavior of the population
of products. They do not guarantee the performance of any individual
product. No measurement uncertainty value is accounted for in the
specification. These specifications are referred to as typical.
Conditions
The power meter and sensor meet its specifications when:
• Stored for a minimum of two hours at a stable temperature within the
operating temperature range, and turned on for at least 30 minutes.
• The power meter and power sensor are within their recommended
calibration periods.
• Used in accordance to the information provided in the power meter’s
user's guide.
Measurement uncertainties
For information on measurement uncertainty calculations, refer to Agilent
AN 1449- 1 to Agilent AN 1449- 4 “Fundamentals of RF and Microwave
Power Measurements”, Literature Number 5988- 9213EN to 5988- 9216EN.