现场精确连续波功率测量，频率范围450kHz～2.7GHz，功率范围100mW～10kW。使用鸟牌工业标准功率探头，
仪表壳内空间可存放两只附加功率探头。粗糙金属外壳设计，可应付最恶劣的外界环境。配备快速转换（QC）
型连接器，在进行关键测量时，最大限度减少转接器数目。鸟牌Model 43通过式定向功率计，是一款业内公认的便
携式、插入型仪表。可测量任何负载条件下同轴电缆中正向和反向连续波（CW）功率。精度达到满量程的±5％，
精确测量射频功率，低附加驻波比和低插入损耗。Model 43提供QC型连接器和全范围插入式功率探头，让客户有
很大的频率范围和功率等级选择空间，有很强的灵活性。壳内可存储两只附加功率探头，一侧一只。Model 43使
用简单，现场维护容易。
精确度 满量程的±5%
连接器 QC型（通常提供N型阴头）
表面涂饰 亮灰粉层
频率范围 450kHz～2.7GHz（取决于功率探头）
插入驻波比 最大1.05 @ 1000MHz, N型连接器
尺寸 175 x 130 x 92 mm
功率范围 100mW～10kW, 鸟牌插入式功率探头
重量 1.4kg
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频率范围-MHz
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25～1000
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25～1000
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|
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5/20/200
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5/15/50/150/500
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根据探头不同而定
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±10%
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±6%
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±7%
(25～100MHz)
±6%
(100～512MHz)
±7%
(512～512MHz)
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±5%
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驻波比测定时
最小功率-W
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4
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带40dB衰减
输出
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----
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----
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插入损耗-dB
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0.1
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0.1(25～512MHz)0.15(512～512MHz)
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0.1
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50Ω
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接头
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N-J
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N-J
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N-J
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|
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168×101×83
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175×130×92
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重量-kg
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1.36
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1.36
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1.4
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43型功率计探头选型表
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Table 1 - Standard Elements 30 µA
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频率范围 (MHz)
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功率范围
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2-30
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25-60
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50-125
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100-250
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200-500
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400-1000
|
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5 W
|
-
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5A
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5B
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5C
|
5D
|
5E
|
|
10 W
|
-
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10A
|
10B
|
10C
|
10D
|
10E
|
|
25 W
|
-
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25A
|
25B
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25C
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25D
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25E
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50 W
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50H
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50A
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50B
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50C
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50D
|
50E
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100 W
|
100H
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100A
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100B
|
100C
|
100D
|
100E
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250 W
|
250H
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250A
|
250B
|
250C
|
250D
|
250E
|
|
500 W
|
500H
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500A
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500B
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500C
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500D
|
500E
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1000 W
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1000H
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1000A
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1000B
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1000C
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1000D
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1000E
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2500 W
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2500H
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-
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-
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-
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-
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-
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5000 W
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5000H
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-
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-
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-
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-
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-
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Table 2 - Low Power Elements 30 µA
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1 Watt
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Freq.
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40-50
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50-60
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60-80
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80-90
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95-125
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110-160
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150-250
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200-300
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275-450
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425-850
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800-1000
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|
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Part #
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040-1
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050-1
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060-1
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080-1
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095-1
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110-1
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150-1
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200-1
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275-1
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425-1
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801-1
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|
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2.5 Watts
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Freq.
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25-30
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30-40
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40-50
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50-60
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60-80
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80-95
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95-150
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150-250
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200-300
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250-450
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400-850
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800-1000
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Part #
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052-2
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030-2
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040-2
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050-2
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060-2
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080-2
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095-2
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150-2
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200-2
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250-2
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400-2
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801
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Table 3 - High Frequency Elements, Entire Table ±8% Full Scale - 30 µA
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Frequency Bands (MHz)
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Power Range
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950-1260
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1100-1800
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1700-1990
|
1990-2200
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2200-2300
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2300-2400
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2400-2500
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2500-2600
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2600-2700
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|
1 W
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1J
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1K
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1L1
|
1L2
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1M
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431-17
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431-20
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431-23
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431-120
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2.5 W
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2.5J
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2.5K
|
2.5L1
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2.5L2
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2.5M
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431-110
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431-107
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431-108
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431-117
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5 W
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5J
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5K
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5L1
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5L2
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5M
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432-15
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432-28
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432-2
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432-12
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10 W
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10J
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10K
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10L1
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10L2
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10M
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432-125
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432-141
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432-102
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432-104
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25 W
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25J
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25K
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25L1
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25L2
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25M
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433-19
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433-20
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433-35
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433-36
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50 W
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50J
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50K
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50L1
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50L2
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50M
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433-37
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433-38
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433-163
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433-164
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100 W
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100J
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-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
250 W
|
250J
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
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Table 4 - Low Frequency Elements - 30 µA
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|
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Frequency Band
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Power Range
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.45-2.5 MHz
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1000 W
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1000P
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2500 W
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25000P
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5000 W
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5000P
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10000 W
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10000P
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Table 5 Pulse-power Elements, Entire Table ±8% of Full Scale - 30 µA
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|
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Frequency Bands (MHz)
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|
Power Range
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2-30
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25-60
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50-125
|
100-250
|
400-1000
|
950-1260
|
|
500 W
|
-
|
-
|
-
|
-
|
-
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500J
|
|
1000 W
|
-
|
-
|
-
|
-
|
-
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1000J
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2500 W
|
-
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2500A
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2500B
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2500C
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2500E
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2500J
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5000 W
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-
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5000A
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5000B
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5000C
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5000E
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5000J
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10000 W
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10000H
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-
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10000B
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-
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10000E
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-
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Elements 500-1000 Watts, 950-1260 MHz, are rated at 100 Watts. avg.
Elements 2500 Watts and higher, 25-1000 MHz, are rated at 1000 Watts avg
Elements are capable of reading peak and average power.
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功率计型号
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4391A
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4410
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4305
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4431
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4314B
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4308
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频率段（MHz）
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功率段
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|
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2-30
|
50W-10KW
|
√
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√
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√
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√
|
√
|
√
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√
|
√
|
|
√
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25-60
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50W-1KW
|
√
|
√
|
√
|
√
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√
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√
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√
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√
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50-125
|
25W-1KW
|
√
|
√
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√
|
√
|
√
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|
√
|
√
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√
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100-250
|
25W-1KW
|
√
|
√
|
√
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√
|
√
|
|
√
|
√
|
|
√
|
|
200-500
|
25W-500W
|
√
|
√
|
√
|
√
|
√
|
|
√
|
√
|
√
|
√
|
|
400-960
|
10W-500W
|
√
|
√
|
√
|
√
|
√
|
|
√
|
√
|
|
√
|
|
950-1260
|
5W-250W
|
√
|
|
√
|
√
|
√
|
|
√
|
√
|
|
√
|
|
1100-1800
|
1W-50W
|
√
|
|
√
|
√
|
√
|
|
√
|
√
|
|
√
|
|
1700-1990
|
1W-50W
|
|
|
|
|
√
|
|
|
|
|
√
|
|
1990-2200
|
1W-50W
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|
|
|
|
√
|
|
|
|
√
|
√
|
|
2200-2300
|
1W-25W
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|
|
|
|
√
|
|
|
|
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√
|
|
2400-2500
|
1W-25W
|
|
|
|
|
√
|
|
|
|
|
√
|
|
2600-2700
|
1W-25W
|
|
|
|
|
√
|
|
|
|
|
√
|
|
3400-3500
|
1W-10W
|
|
|
|
|
√
|
|
|
|
|
√
|
|
3500-3600
|
1W-10W
|
|
|
|
|
√
|
|
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