Thruline RF Power Meter, Model 4421
45
Specifications, Cal Cart
To determine the model numbers of the Cal Cart components, refer to specific cal cart manual. For load
specifications, refer to the load manual included.
Note:
Certain sensors or connectors may be incompatible with some models. Refer to
specific cal cart
manual
for a list of available components, or contact Customer Service.
Max. Power
Under normal operating conditions, the Cal Cart’s maximum power is the MINIMUM of the max. power of the
sensor and the max. power of the load. The following modifiers apply:
Above 65 MHz, derate the load’s max. power. See
Figure
22 on page
51
.
Due to the wide variety of available connectors, frequency range and maximum power may be reduced.
Insertion loss is specified with female N connectors. Choose connectors appropriate for the frequency and
power of operation.
Derate RF power by 2.5% for every 305m (1,000 ft.) above 1,520m (5,000 ft.).
Table 20
Bird Cal Cart
Frequency Range
Sensor dependent, 30 MHz max.
Power Range
Dependent on sensor, sensor connectors, and load
Connectors
Customer specified (See
"Available Connectors" on
page 52
)
Dimensions
Short Cart
Long Cart
42”L x 20”W x 42”H (1067 x 508 x 1067 mm)
52”L x 20”W x 42”H (1321 x 508 x 1067 mm)
Weight, Nominal
Short Cart
Long Cart
175 lbs. (80 kg)
290 lbs. (114 kg)
Temperature Range
Operating
Storage
0 to +35 °C (32 to +95 °F)
– 20 to +70 °C (–
4 °F to +158 °F)
Altitude
1520 m (5000 ft.)
Humidity
85% noncondensing max
Calibration Cycle, Nominal 1 year
CE
CE Compliant. Refer to Declaration of Conformity for
specific standards.
