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4305A型鸟牌功率计 Portable, High-PowerWattmeter - Accurate CW power measurement over 450kHz to 2.3 GHz and 50 W to 25 KW.
- Uses industry standard Birdelements.
- Constructed with a 1-5/8” line sectionfor higher power measurements.
- Quick Change (QC) connectors to minimizethe need for adaptors when making criticalmeasurements.
The Bird Model 4305 Directional Wattmeter is a field-provenportable, insertion-type instrument designed to measure bothforward and reflected CW power in coaxial transmission lines underany load condition. With a full-scale accuracy of ± 5%, itaccurately measures RF power with low added VSWR and insertionloss. QC (quick change) type connectors and a full range of plug-inelements provide a wide choice of frequency ranges and powerlevels.
Element Tables / Product Support and Service
Accessories:
Quick Change Solderless Connectors - QC-Type "Quick ChangeSolderless" RF Connectors
Support Tools:
Declaration of Conformity
Technical Paper
Product Specifications:
Accuracy: ±5% offull scale
Connector: QC Type(Female N normally supplied)
Finish: Gray powder coat
Frequency Range: 450 kHz to 2.3 GHz (depending onelement)
Insertion VSWR: with N connectors 1.05 max.
Nominal Size: 6 5/16" H x 5 1/8" W x 4 1/4"D (161 x 131 x 108 mm)
Power Range: 50 W to 25 kW using BirdPlug-In Elements
Weight: 3 1/4 lbs. (1.5 kg)
4305A型功率计探头选型表 | Frequency (MHz) | PowerLevel | .45-2.5 | 2-30 | 50-125 | 100-250 | 400-1000 | 1100-1800 | | 4305A High-PowerElements | 50 | - | - | - | - | - | 50K7 | 100 | - | - | - | - | - | - | 2500 | - | - | 2500B7 | 2500C7 | 2500E7 | - | 5000 | - | - | 5000B7 | - | - | - | 10000 | - | 10KH7 | - | - | - | - | 25000 | 25KP7 | - | - | - | - | - |
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| Table 1-5/8AA - Standard Elements30 µA | | FrequencyBands (MHz) | PowerRange | 2-30 | 50-125 | 100-250 | 400-1000 | 100 W | - | 100B12 | 100C12 | 100E12 | 250 W | - | 250B12 | 250C12 | 250E12 | 500 W | 500H12 | 500B12 | 500C12 | 500E12 | 1000W | 1000H12 | 1000B12 | 1000C12 | 1000E12 | 2500W | 2500H12 | 2500B12 | 2500C12 | 2500E12 | 5000W | 5000H12 | 5000B12 | 5000C12 | 5000E12 | 10 kW | 10KH12 | 10KB12 | 10KC12 | - | 25 kW | 25KH12 | 25B12 | - | - |
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鸟牌功率计探头选型表 由深圳田诚电子提供 
ELEMENT SELECTION GUIDE Wattmeter Model | Select Element from Table(s) | 3128A | 1, 2, 3, 3A, 4, 6, 14* | 3170A | 1, 2, 3, 3A, 4, 6, 14* | 43 | 1, 2, 3, 3A, 4, 6, 14* | 43P | 1, 2, 3, 3A, 4, 5, 6 | 4305A | 请看表①, 1 5/8AA | 4314B | 1, 2, 3, 3A, 4, 5, 6, 14* | 4391A | 1, 2, 3, 3A, 4, 5, 6, 14* | 4410A, 4412A | 请看表② | 4431 | 1, 2, 3, 3A, 4, 6, 14* | 4521, 4522 | 1, 2, 3, 3A, 4, 6, 14* | 4526 | 1, 2, 3, 3A, 4, 6, 14* | 4527 | 2 MHz to 512 MHz elements in 1,2, 6,14* |
* Table 14 describes coupler elements used for RF sampling. The instrument meter does not read when these elements are installed, but simply serves as a line section.
ELEMENT TABLE FREQUENCY & POWER LIMITS ELEMENT ABLET | MIN. PWR (WATTS F.S.) | MAX. PWR (WATTS F.S.) | MIN. FREQ (MHz) | MAX. FREQ (MHz) | APM | 1 | 1000 | 2 | 2300 | 1 | 5 | 5000 | 2 | 1000 | 2 | 1 | 2.5 | 25 | 1000 | 3 | 1 | 250 | 950 | 2700 | 3A | 0.1 | 0.5 | 950 | 2600 | 4 | 1000 | 10000 | 0.45 | 2.5 | 5 | 500 | 10000 | 2 | 1260 | 6 | 0.1 | 0.5 | 45 | 1000 | 8 | 50 | 25,000 | 0.45 | 2300 | 9 | 0.01 | 10 | 30 | 1000 | 9A | 0.001 | 1 | 864 | 970 | 10 | 0.1 | 100 | 25 | 2300 | 11 | 1 | 1000 | 2 | 1000 | 12 | 10 | 10000 | 0.2 | 30 | 14 | 1000 | 1000 | 50 | 1250 |
TABLE 1 — STANDARD ELEMENT | Frequency Bands (MHz) | | Power Range | 2-30 | 25-60 | 50-125 | 100-250 | 200-500 | 400-1000 | 5 W | — | 5A | 5B | 5C | 5D | 5E | 10 W | — | 10A | 10B | 10C | 10D | 10E | 25 W | — | 25A | 25B | 25C | 25D | 25E | 50 W | 50H | 50A | 50B | 50C | 50D | 50E | 100 W | 100H | 100A | 100B | 100C | 100D | 100E | 250 W | 250H | 250A | 250B | 250C | 250D | 250E | 500 W | 500H | 500A | 500B | 500C | 500D | 500E | 1000 W | 1000H | 1000A | 1000B | 1000C | 1000D | 1000E | 2500 W | 2500H | — | — | — | — | — | 5000 W | 5000H | — | — | — | — | — |
TABLE 2 — LOW-POWER ELEMENTS 1 Watt | | Frequency (MHz) | 40- 50 | 50- 60 | 60- 80 | 80- 90 | 95- 125 | 110- 160 | 150- 250 | 200- 300 |
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