Bird Wattmeter
Are you planning to buy a watt meter?
If your answer is in the affirmative, there are things you need to know before making your purchasing decision — like, its basic features and the different types of wattmeter available in the market.
For an outlander, a watt meter is an electric power measurement instrument used to measure Watts1 for any AC power circuit. There are hordes of wattmeters thronging the marketplace — from Heathkit, Collins, Swan, Drake, and Nye Viking — to MFJ, Diawa, Vectronics, Autek, Coaxial Dynamics, Palstar, Bird, and Kenwood. Almost all these manufacturers say theirs is accurate on frequency, while rendering the highest reading. What is the real story, let us find out. Types of Wattmeter Before narrowing down your choice of a standard wattmeter, you might want to explore the different types of wattmeter available in the market today.
1. Electrodynamics Wattmeter This wattmeter is one of the oldest and most frequently used to measure electric power in AC circuits. It consists of a pair of fixed or current coil, and a movable coil known as potential coil. The current coil is positioned in series, whereas, the potential coil or the movable coil is placed in parallel. Such an arrangement enables rotation of the potential coil by a limited angle, to an axis perpendicular to the fixed coils. Additionally, a needle is positioned in the wattmeter to indicate electric power.
2. Electronic Wattmeter This instrument is used to measure power at frequencies above the range of Electrodynamics Wattmeter. It is further divided into Vacuum Tube and Digital Wattmeter, depending upon the features and functions performed by the wattmeter.
3. Vacuum Tube Owing to its traditional design, this instrument can measure electric power in the nonlinear region of grid voltage and plate-current curves.
4. Digital Wattmeter This simple, yet optically isolated wattmeter is used to make accurate measurements of “real” power consumption, despite the presence of large reactive and DC components in the current drawn by the monitored load.
So there, now that you know about the different types of wattmeter, here are some tips to help your purchasing decision while buying a wattmeter from a trusted manufacturer.
o If you are planning to buy a wattmeter from manufacturers like Coaxial Dynamics or Bird Electronic Corporation, it might be worthwhile to know that their “accuracy classification” claim of + or – 5% of full scale when the needle is mid-scale is correct.
o If you want a measuring instrument that provides protection from the inverse attenuation effect, go for a cheap, cross-needle Putt-Putt wattmeter.
o To measure the power of a single appliance or at a specific outlet, use the plug-in wattmeter. This instrument can be extensively used around your office or computer rooms, for testing the usefulness of an outlet and the power consumption of electronic items plugged into it. Plug-in wattmeters are able to detect damaged electronics or bad electrical wiring, by calculating the power flow through a single outlet. One of the simplest and easy-to-use wattmeter in this category includes the Kill-A-Watt EZ from the PowerMeterStore.
o Professional-grade, portable wattmeters like the Test Equipment Depot and the Bird Model 5000-EX digital wattmeter fulfill the “on-site troubleshooting” needs of electricians, electrical repair crews, and system troubleshooters.
o To stay on top of your electric bills, use digital wattmeters that evaluate the overall power consumption of an electrical system. These instruments have readouts that display where and how power is being consumed. Some advanced models even allow the power monitor to render small changes in the electrical power flow. Digital wattmeters like the Energy Detective and the EIG Shark 100 are quite a rage in the marketplace. The former is used to monitor a home office or small business, whereas the latter is used for more robust applications, such as large businesses or IT rooms.
o Digital radio frequency (RF) wattmeters like Thomas Scherrer OZ2CPU are used to measure accurate RF power and gain in amplifiers, bandwidth in filters, transmitter power, Standing Wave Ratio (SWR), and return loss.
o Some wattmeters like Palstar’s PM2000A have a dual movement meter system that measures and displays forward as well as reflected electric power.
Finally, whatever decision you make, please be reminded that wattmeters play an important role in the maintenance of large electrical systems. By measuring the overall wattage of a system, these instruments act as one of the first lines of defense versus electronic wear. Also, how you will use the instrument is an important consideration while deciding on the type of wattmeters you need.
Wikipedia watt meter section
CableOrganizer.com watt meter section
bird watt meter model 43
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Bird 4391M Watt Meter $2,299.00 |
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Bird 5017 Broadband Power Sensor PC Based RF Wattmeter or 5000-XT 25-1000 MHz $2,329.00 |
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Bird 5012A Broadband Power Sensor PC Based RF Wattmeter 5000XT 350 MHz – 4 GHz $2,329.00 |
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BIRD WATTMETER, RF DIRECTIONAL MODEL 4391M, 7 Elements! $1,995.00 |
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BIRD WATTMETER, RF DIRECTIONAL MODEL 4391M Option 832 $1,969.00 |
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Bird 4027A35M Directional Power Sensor for 4421 ThruLine RF Watt Meter 35-45MHz $1,619.99 |
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Bird Model 43 HF/VHF/UHF Mega RF Wattmeter Kit w/Elements 2-1000 MHz (New) $1,499.00 |
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Bird 4410A Thruline Broadband RF Wattmeter with 2-30 MHz 10-10kW Element (NEW) $1,089.00 |
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Bird Model 43 Ham Radio SSB/CW/FM RF Wattmeter Kit w/Elements 2-1000 MHz (New) $999.00 |
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BIRD 670 RF WATTMETER/DUMMY LOAD 0-25-100-500 WATTS – 50 ohm Termaline $895.00 |
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Bird Model 43 Ham Radio Frequency RF Wattmeter Kit w/Elements 2-1000 MHz (New) $869.00 |
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Bird Model 43 Ham Radio RF Wattmeter Kit w/4 Elements $859.00 |
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Bird 4410A Multi-Range Broadband RF Wattmeter 2mW-10kW 200KHz – 2.3GHz (NEW) $799.00 |
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CDI Broadband RF Wattmeter – Compatible Bird 4304A 4304 $729.00 |
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Coaxial Dynamics 83060 Broadband RF Wattmeter PEAK/AVG Replaces Bird 43P 4314B $729.00 |
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CDI 83060 Broadband RF Wattmeter (New) – Compatible Bird 4304A 4304 $729.00 |
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Bird RF Power Meter Wattmeter PC Based w/Free Software $683.00 |
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Bird Model 43(P) Thruline Pk/Avg RF Wattmeter Kit (New) W/PEP/Avg Module (New) $679.00 |
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Bird 43 Wattmeter HF VHF 50C 100H 50W Load case element $649.95 |
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New Bird 4304A THRULINE Single Element Wattmeter $589.95 |
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Bird Model 43 Thruline RF Wattmeter Kit 50W Load (New) $599.00 |
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81060 Broadband 5-1500W 25-1000 MHz RF Wattmeter – More power than Bird 4304A $599.00 |
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Coaxial Dynamics 81041 RF Wattmeter Bird 43 Compatible $579.00 |
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Bird 43P General Purpose Wattmeter with Peak Reading Option “New” $573.00 |
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Bird Model 43 Thruline RF Wattmeter Kit 25W Load (New) $549.00 |
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Bird Model 43(P) Peak/Avg Thruline(c) RF Wattmeter NEW! $549.00 |
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Bird Model 43P Peak/Avg Thruline(c) RF Wattmeter NEW 4300-400 PEP Installed! $549.00 |
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CDI 81050 Broadband RF Wattmeter (New) – Compatible with Bird 4304A 4304 $539.00 |
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Bird 43 VHF Marine Wattmeter, 50W Load case 25C element $519.95 |
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LOT THRULINE BIRD WATMETER 4410A MODEL 10K SLUG 2-30 MHZ WATT METER ELECTRONIC $499.00 |
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BIRD ELECTRONICS THRULINE 4410A WATTMETER +CASE WITH 10KW HF SLUG NICE $485.00 |
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Bird 4391 RF Power Analyst Digital Wattmeter Fwd Refl Avg PEP Power Measurements $495.00 |
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Bird Thruline Model 4304A RF Wattmeter with 500W Slug Tested & Working! $449.99 |
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Bird 43 Thruline Watt Meter Triple Meter RMS / New Gold $425.00 |
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BIRD THRULINE WATTMETER MODEL 43 WITH CASE & ACC. $429.99 |
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Bird 43 4314B Thruline Element PEP Peak Watt Meter / PRISTINE $424.95 |
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Bird 43 Thruline RF Wattmeter Kit with 50W Load, case $419.95 |
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CDI Pk/Avg RF Wattmeter Bird 43P and 4314B Compatible $429.00 |
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CDI 83000A Pk/Avg RF Wattmeter Bird 43 43P 4314B Cmptbl $429.00 |
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Bird Thruline wattmeter series 4900A NEW MFG#4902-080A $403.77 |
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BIRD THRULINE * MODEL 43 * WATTMETER WITH ELEMENTS $399.00 |
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BIRD WATTMETER 4307 GREAT CONDITION 75 OHMS $399.95 |
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Bird 43 / 4610-000 Thruline RF Wattmeter Element 3-1/8 Line Section 100ua $395.95 |
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Bird Thruline Model 43 RF Wattmeter $388.00 |
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Bird 43 4304A Thruline Watt Meter / PRISTINE $385.99 |
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Bird 43 Wattmeter NEW, 100 watt Load, manual, element $379.00 |
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Bird Electronic Corporation Thruline Model 43 Impedance 50 ohms WATTMETER #70 $389.99 |
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Coaxial Dynamics 81021 RF Wattmeter Bird 43 Compatible $389.00 |
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BIRD RF WATTMETER TYPE FA-5114B $349.99 |
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Bird 43 4304A Thruline Watt Meter / VERY NICE $349.99 |
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Bird 43 4381 Thruline Watt Meter PEP-Dual Element, Power Analyst $349.95 |
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Bird 43 4391 Thruline Watt Meter PEP-Dual Element, Power Analyst $349.95 |
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Bird 43 4391A Thruline Watt Meter PEP-Dual Element, Power Analyst $349.95 |
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Bird 43 / 4610-000 Thruline RF Wattmeter Element 3-1/8 Line Section 100ua $349.95 |
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Bird 43 / 4600-000 Thruline RF Wattmeter Element 3-1/8 Line Section 100ua $345.95 |
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Bird 43 wattmeter PART4230-053 impedance 50 ohm DIY $350.00 |
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New Bird 43 THRULINE Wattmeter N or UHF or BNC $334.95 |
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Bird Model 43 (43N) Thruline(c) RF Wattmeter (New) $348.00 |
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Bird 43 Thruline Directional Wattmeter **New** $338.00 |
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Bird 43 4304A Thruline Watt Meter / VERY NICE $324.99 |
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Bird Thruline Wattmeter Carrying Case $105.00 … |
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CB Radio Digital Base or Mobile SWR Power RF Wattmeter $435.00 Unbelieveable performance, sophisticated design, unheard of features. Simply the best! Fwd & Net Power – 50mW to 3KW Autoranging - SWR, R+j|X|, Reflected Power - 1.8-54 MHz with frequency counter for per-band corrections of all parameters - High resolution Graphic VFD display - dBm/RL scales with 0.1 dB steps - Calibrated field strength input (-15 to +33dBm) - Screen for measuring speech… |