Volt Meter
Volt Meter
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 M VOLT LED TRAILER LIGHT KIT COMBO ALL WITH 9 METER WIRE ATTACHED FULLY W PROOF  US $32.07
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 Tool Fluke Multimeter Volt Meter Ohm Meter US $279.95
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 BEP AC Electrical Digital Volt Meter Matrix Marine US $75.00
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 YANMAR 183789 91280 VOLT METER OEM NOS US $28.95
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 AC Volt Meter 110v US $12.50
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 Teleflex Marine Voltmeter Flush Mount US $25.00
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 TELEFLEX 65550SEF 10 16 VDC VOLT METER US $18.95
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 LED NUMBER PLATE LAMP WITH 9 METER WIRE 5YR WARRANTY BL 300M9 US $5.36
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 HONDA VOLT METER ALL FL RESIDENTS PAY 7 SALES TAX US $20.00
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 portable 12 volt battery meter tool boat farm home 12V US $7.95
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 BEP Electrical Digital Volt Meter Matrix Marine US $75.00
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 Yamaha 6Y7 83503 10 00 PRO SERIES II VOLT METER WHT US $75.78
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 BOAT DIGITAL 5 FUNCTION VOLT METER CLOCK THERMOMETYER STOP WATCH ICE ALRT US $39.99
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 12 Volt Battery Indicator Hour MeterGauge ATV Boat US $29.59
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 QUICKSILVER F 5H157 MARINE VOLT METER GAUGE FORCE MOTOR US $20.00
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 NEW 36 VOLT 36V EZGO EZ GO GOLF CART LED Battery Meter US $24.99
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 NEW Marine Boat Livorsi Volt Meter Gauge Platinum Face US $42.00
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 96Volt Battery indicatormetergauge tri colors EV US $16.59
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 48 Volt Battery Indicator Hour MeterGauge Tri color US $31.45
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 Instrument Gauge VP7127A 2 Faria VOLT METER US $25.00
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 BAYLINER BOAT VOLT METER GAGE US $15.99
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 12 Volt Battery Indicator with Hour Meter Relay output for auxiliary devices US $31.45
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 BEP DC Electrical Digital Volt Meter Matrix Marine US $149.00
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 Faria Marine Chesapeake Stainless White Volt Meter Gauge 12 VDC Boat Auto RV US $29.95
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 YAMAHA BLACK FACE VOLT METER INSTRUMENT GAUGE US $50.00
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 YAMAHA VOLT METER WHITE W BLACK LETTERS INSTRUMENT GAUGE US $50.00
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 Battery Test Switch with DC Volt Meter for 2 Batteries US $39.95
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 NEW YAMAHA VOLT METER WHITE US $83.95
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 NEW Volvo Penta Volt Meter 835656 or 835656 0 NOS OEM SAVE $$$$ US $59.99
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 Mercury Smartcraft VDO Voltmeter 8 16V 3971775 US $49.99
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 4 GPH 12 Volt DC Modular Marine Watermaker Desalination Desalinator Unit US $2,495.00
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 12 Volt battery indicator hour meter Gauge resetable US $29.59
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 TELEFLEX 53212P RED INTERNATIONAL VOLT VOLT METER GAUGE NEW IN PACKAGE US $25.99
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 2 X M VOLT LED BOAT TRAILER LIGHTS WITH 9 METER CABLE NO JOINS 2 X BL 203ARM9 US $7.79
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 MARINE AFI MINI COMPACT ELECTRIC SINGLE HORN 12 VOLT FOR VESSELS UP TO 12 METER US $14.99
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 12Volt Water Proof Volt Meter 8 18 Volts US $12.95
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 Blue Sea 8043 AC Breaker Panel w Voltmeter Boat Marine Quality US $100.00
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 Volt Meter Platinum Face purple race rim DCSVMPLPURR US $30.00
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 VDO Marine 24V Volt Meter Gauge Voltmeter NEW US $37.46
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 FARIA EURO VOLTMETER 10 16V FOR AL 12 VOLT DC ELECTRICAL SYSTEMS US $32.99
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 NEW Teleflex Lido Series Boat Marine Hour Meter Gauge 12 24 Volt DC 65497 P US $44.95
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 VOLVO PENTA VOLT METER US $35.40
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 FARIA SPUN SILVER BOAT VOLT GAUGE VOLTS VOLTMETER VP9223A METER NEW PR0404A US $24.95
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 FARIA CORAL VOLTMETER 10 16V FOR AL 12 VOLT DC ELECTRICAL SYSTEMS US $32.99
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 Faria Chesapeake Black Volt Meter Part VP9153A US $15.00
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 Teleflex Volt Meter Part 59513 US $15.00
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 Teleflex Volt Meter Part 59505 US $15.00
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 Volt Meter Yamahas Pro Series 6y5 83503 00 US $75.00
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 DCSVMBKPSSRR New Livorsi Volt Meter Black Polished SS US $32.00
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 DCSVMSFBLRR New Livorsi Volt Meter SILVER CARBON FIBER US $33.00
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 48 Volt Battery Indicator with Hour Meter provides remaining battery power US $31.45
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 12V VOLT METER RAT ROD HOT ROD MARINE INSRUMENTS BOATS GAUGES MEDALIAN US $5.50
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 Faria Marine Auto RV Euro Style White Black Volt Meter 10 16 VDC US $23.95
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 marine compass US $20.00
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 Onan Genuine Parts Volt Meter P 185 5063 4330 US $78.99
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 Teleflex Red International gauges US $90.00
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 NEW Faria Marine Auto Gauge Euro Black Volt Meter 10 16 Volts DC US $22.95
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 NEW Faria Marine Auto Gauge Euro Black Series 12 32 Volt DC Hour Meter 12824 US $44.95
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 YAMAHA OUTBOARD PRO SERIES 2 VOLT METER WHITE FACE NEW OEM US $79.95
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 Blue Sea Systems 8 16 Volt DC Analog Micro Voltmeter 8028 US $28.38
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 Mercury Black Voltage Volt Meter Gauge 79 895286A01 895286A01 US $38.89
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 BLUE SEA 8237 METER DIGITAL AC VOLTAGE US $196.93
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 Livorsi Boat 2 5 8 Volt Meter Gauge White w Polished US $42.00
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 Faria Marine Chesapeake Stainless White 4 in 1 Fuel Volt Meter Water Temp Oil US $99.95
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 NEW CROWNLINE FARIA SS BLACK VOLTMETER VOLT GAUGE US $25.99
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 Mercury Quicksilver International II Volt Meter 79895286Q41 79 825324A 1 US $36.05
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 BLUE SEA 8251 DIGITAL DC VOLTAGE METER US $186.66
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 BLUE SEA 8248 METER DIGITAL DC US $254.47
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 Faria Marine Chesapeake Stainless Steel Black Volt Meter Gauge 10 16 VDC US $29.95
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 NEW MERCURY MERCRUISER QUICKSILVER OEM PART 79 895286B11 GAUGE VOLT METER US $455.00
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 PANELTRONICS STANDARD DC METER PANEL VOLTMETER AMMETER P N 9982202 82202 94348 US $129.95
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 Victron Energy BMV 602S battery monitor amp hour meter US $206.95
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 Marinco AFI 10122 12 Volt Electric White 17 Dual Trumpet Air Horn Marine Boat US $224.99
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 NEW Teleflex Lido Series Boat Marine Volt Meter Gauge 65506 P US $24.95
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 Blue Sea Systems 8240 Expanded Scale DC Voltmeter for 24 Volt Systems US $34.95
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 EV E car 72V 96 120V 144V Battery Indicator meter guage US $22.99
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 Teleflex Heavy Duty Series Voltmeter Gauge 12 Volt System 10 16 Volts 80134P US $27.50
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 YAMAHA OUTBOARD ENGINE VOLT GAUGE METER 6Y5 83503 00 US $69.95
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 NEW SeaSense 12 Volt Battery Meter Tester LED Display US $16.49
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 NEW Teleflex Sahara Marine Inboard Sterndrive Outboard Volt Meter Gauge US $24.95
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 6V 6 VOLT AUTOLITE IGNITION COIL CHRIS LYMAN OWENS GAR US $25.00
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 20 GPH Modular Marine Watermaker Desalination Desalinator Unit US $3,895.00
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 NEW Teleflex Sahara Outboard 4 Gauge Set Tachometer Speedometer Fuel Volt Meter US $151.95
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 Livorsi Boat 2 5 8 Volt Meter Gauge Silver Carbon US $46.80
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 Minn Kota Maxxum 80lb 52 bowmount trolling motor full 1 year warranty US $999.99
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 Sterling Power waterproof 12v to 24 Volt Marine Battery to Battery Charger IP68 US $329.99
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 12V Battery indicatormetergauge tri colors forklift US $16.59
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 Marine Voltmeter DC 8 16 Volt Blue Sea 8003 US $30.95
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 4 Marine Gauges 2 Tachometers fuel Gauge Volt Meter US $39.95
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 Mastercraft Gauges Speedometer Oil Volt Temp US $80.00
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 Yamaha 6Y7 83503 10 00 Voltage Meter Pro Series II White Face US $45.00
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 Teleflex Volt Meter with Light 10 to 16 VoltsPN 1198371 0833 2 3 8 Face US $29.50
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 New SeaSense Marine Boat Battery Condition Meter Indicator 50031042 LED Display US $6.95
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Netgear unveils Smart Network Cloud App Platform, invites developers (Albuquerque Journal)
Netgear's Smart Network Cloud Platform being unveiled at CES 2012
(Credit: Dong Ngo/CNET)
LAS VEGAS--Netgear announced today at CES 2012 its Smart Network Cloud
Application Platform (SNCP), which enables consumers to purchase and download
apps from the cloud to optimize and personalize their networking devices with.
The company says Smart Network apps, ranging from games to tools and
utilities, can be developed by anyone. For example, an independent programmer
can develop a simple data-usage meter app that alerts consumers when their
data cap is about to run out. Utility companies can also provide applications
that allow users to monitor their energy usage. Or game developers can provide
apps that optimize the connection for high-bandwidth games.
Indifferent words, depending on the type of device, these apps are designed to
add more functions, features or even just some quick customized settings to
it. According to Somshubhro Pal Choudhury, Netgear's Director of Product
Marketing, the app platform helps personalize a great deal the user
experience.
The Smart Network Cloud Application Platform will be available exclusively via
Netgear's latest products, such as the WNDR4700 router that was also announced
today. Future networking devices, inc... [Read more]
**Related Links:**
Networking and storage: What to expect ...
Electronics 101-How To Use A Multimeter Voltmeter Ammeter Ohmmeter Continuity Tester
The Functions of Radio Antennas by Tymon Hytem-5496
Radio antennas have two fold functions. First of these functions is to radiate the radio frequency energy generated in the transmitter and fed to the antenna by a transmission line. In this capacity the antenna acts as the impedance matching device to match the impedance of the transmission line to that of free space. The other function of the antenna is to direct the energy into desired direction and to suppress the radiations in unwanted directions
A completely non directional or omni directional radiator radiates uniformly in all directions and is known as isotropic radiators. A point source of sound is an example of isotropic radiator in acoustics. There are no such things as an isotropic radiator of electromagnetic energy since all radio antennas have some directivity. However the notion of a completely non directional source is useful especially for gain comparison purposes.
The radiation pattern of an antenna is a graphical representation of the radiation of the antenna as a function of direction. When the radiation is expressed as field strength volt per meter the radiation pattern is a field strength pattern. If the radiation in a given direction is expressed in terms of power per unit solid angle the resulting pattern is a power pattern. A power pattern is proportional to the square of the field strength pattern. The co ordinate system generally used in the specification of antenna radiation pattern is the spherical co ordinate system. The antenna is locked near the origin of the system and the field strength is specified at points on the spherical surface of radius. The shape of radiation pattern is independent of radius as long as radius is chosen sufficiently large. When this is true the magnitude of the field strength in any direction varies inversely with radius and so needs to be stated for one value of radius. For example in broadcast antenna work it is customary to state the field strength at a radius of one mile or one kilo meter. Often only the relative radiation pattern is used. This gives the relative field strength in various directions. Usually it is referred to unity in the direction of maximum radiation.
Antenna represents circuits with distributed constants but for the sake of analysis we can show the lumped inductance and lumped capacitance of an antenna system in the form of an oscillatory circuit. The circuit consists of a condenser whose plates are connected by a vertical wire which contains a certain amount of a self inductance. A radio frequency voltage is included at the center of the circuit. The frequency of the source usually corresponds to the resonant frequency of the circuit. This arrangement is often referred to as a dipole.
Tymon Hytem has worked in the electronics feild for the past 15 years. He enjoys helping people decide on electronic gadgets from telephones to XM Radio and choosing the perfect XM Satellite Radio system for their needs.
Article Source: http://www.earticlesonline.com/Article/The-Functions-of-Radio-Antennas/189512