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4412A型通过式功率计|美国Bird
Multipower, ±5% Reading Accuracy The Model 4412A uses the basic principles and “look and feel” of the Model 43 but transforms it into a highly accurate
high dynamic range instrument. The mirrored-scale linear range meter has 2 switchable ranges, 0-1 and 0-3. Power is read as a multiple of the value indicated by the pointer, the decimal point location depending upon the range
switch position and the factor printed on the plug-in element. Power ranges covered by individual elements are 2 mW to 10 W, 20 mW to 100 W, 200 mW to 1 KW and
2 W to 10 KW, full scale. For most elements, accuracy is +/-5% anywhere above 20% of full scale. The circuitry operates from a rechargeable battery. Temperature-compensated accurate CW and FM power measurements from 200 kHz to 2.3 GHz and 2 mW to 10 KW · Uses special 4410-series wide-range elements · Wide-range accuracy over a 37 dB dynamic range · Quick Change (QC) connectors to minimize the need for adaptors when making critical measurements
Power Range
2 mW - 10 W, 20 mW - 100 W, 200 mW - 1 kW or 2 W - 10 kW full scale in one single Plug-in Element
Frequency Range
200 kHz-2.3 GHz CW or FM
Insertion VSWR
N Connectors 1.25 max. to 2300 MHz
Connectors
QC Type (Female N normally supplied)
Ambient Temp Range [°C (°F)]
To 120% of nominal full scale (i.e.12 W, 120 W, 1200 W, or 12,000 W).
No damage or degradation to the unit will result, regardless of the Range
Selector Switch position.
Finish
Gray Powder Coat
Nominal Size [inches (mm)]
6-7/8" x 5-1/8" x 3-5/8", including connectors (H x W x D) 175 x 130 x 92 mm
Weight
4 lbs. (1.8 kg)
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