Image from page 146 of “QST” (1915)

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Identifier: qstamer00amer
Title: QST
Year: 1915 (1910s)
Authors: American Radio Relay League
Subjects: Radio Radio
Publisher: [Newington, Conn., etc., American Radio Relay League]
Contributing Library: Internet Archive
Digitizing Sponsor: Internet Archive

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Text Appearing Before Image:
Me^jU FREED COMPONENTS /o^ HI-FIDELITY AMPLIFIERPROVIDE IMPROVED PERFORMANCE This Freed circuit incorporates several changesfrom the original Williamson circuit to provide op-timum performance at high and low frequency ex-tremes. It is rated at 10 watts with triode connectedoutput tubes. However, by connecting the screengrids of these tubes to taps provided on the FreedKA-10 output transformer, it is possible to doublethe power output for a given distortion percentage. Recommended power supply is choke-input typewith a two-section L-C filter to maintain constantD.C. output and to improve filtering to the voltageamplifiers. Other high quality Freed components Include minia-ture audio transformers, magnetic amplifiers, toroidalinductors, subminiature encapsulated pulse trans-formers, precision filters and a complete line ofprecision laboratory test instruments. Complete cata-logs are available to engineers requesting same onfirm letterheads.

Text Appearing After Image:
Freed components requiredfor this amplifier include:FREED KP-IO POWER TRANSFORMERFREED KA-IO OUTPUT TRANSFORMERFREED KC-10 FILTER REACTORFREED KC-n FILTER REACTOR A DETAILED TECHNICAL SHEET AND PARTS LIST IS AVAILABLE ON REQUEST ASK FOR BULLETIN NO. 5402 FREED TBANSFOBMER CO.. INC. 1703Weirfield St..Brooklyn (Ridgewood) 27, N.Y. 141 Be^^ of Your Transmitter to Antenna Matchwith the new CoAx Ratiometer (swr.) Install a CoAx Ratiometer in the line between your trans-mitter and antenna (or tuner) and stop guessing at a propermatch. In this new device, well-established principles areapplied to produce a unique answer to the problem ofmeasuring standing wave ratios. The result is a design ofexceptional accuracy and simplicity. There are no condensors to balance, no resistors in lineto dissipate your power. The unit handles frequencies from2 to 200 MCS, power loads from 10 to 1000 watts (so itcant be overloaded). Rugged construction, but so compactit can easily be permanently installed insi

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GigaMax(TM) 5.8G Right Angle SMA Female Mushroom Antenna Gains FPV Aerial Photo RC Airplane 1 Pair

GigaMax(TM) 5.8G Right Angle SMA Female Mushroom Antenna Gains FPV Aerial Photo RC Airplane 1 Pair

  • 100% brand new and high quality
  • A brand new design, 5.8G Antenna gains for FPV aerial photo.
  • All the products have a strict test, the standing-wave ratio is lower than 1.5.
  • This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.
  • Search GigaMax for more choices!

Features:
A brand new design, 5.8G Antenna gains for FPV aerial photo.
All the products have a strict test, the standing-wave ratio is lower than 1.5.
This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.
The blue part can bend.
GGSM: 5.72G 5.74G
L shape with inner bore.

Specifications:
Package size: 11.3 * 8.6 * 4cm / 4.4 * 3.4 * 1.6in
Package weight: 63g / 2.2oz

Package List:
1 * RX-SMS An

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IMONIC 6pcs 5.8G Right Angle SMA Female/Male Antenna Connector for RC Aircraft FPV

IMONIC 6pcs 5.8G Right Angle SMA Female/Male Antenna Connector for RC Aircraft FPV

  • Aircraft Connector

Features:
A brand new design, 5.8G Antenna connector for FPV aerial photo.
All the products have a strict test, the standing-wave ratio is lower than 1.5.
This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.

Specifications:
Total weight: 30g / 1.1oz

Package List:
2 * Right Angle SMA Female Antenna Connector with Female Plug
2 * Right Angle SMA Female Antenna Connector with Male Plug
2 * Rig

List Price: $ 15.20

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RigExpert AA-1000 HF/VHF Antenna Analyzer (0.1-1000MHz)

RigExpert AA-1000 HF/VHF Antenna Analyzer (0.1-1000MHz)

  • 0.1 to 1000 MHz
  • Measurement for 25, 50, 75 and 100-Ohm systems
  • 9″x4″x2″

RigExpert AA-1000, a powerful antenna analyzer designed for testing, checking, tuning or repairing antennas and antenna feedlines. Graphical SWR (Standing Wave Ratio) and impedance, as well as Smith/polar chart displays are key features of these analyzers which significantly reduce the time required to adjust an antenna.

List Price: $ 849.00

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'It was the toughest decade of my life': our readers on surviving their 20s
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Markets fall on weak US services industry data – as it happened
The slower growth in US services has pushed Wall Street into negative territory, with the Dow Jones industrial average now down 32 points or 0.2%. The FTSE 100 has seen its falls accelerate and is now down 70 points, while the FTSE Eurofirst 300 has …
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Frustration flares for VW dealers as sales nosedive
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Rig Expert RigExpert Antenna Analyzer 0.1-600MHz and Ham Guides TM Pocket Reference Card Bundle

Rig Expert RigExpert Antenna Analyzer 0.1-600MHz and Ham Guides TM Pocket Reference Card Bundle

  • Rig Expert RigExpert Antenna Analyzer 0.1-600MHz
  • Ham Guides TM Pocket Reference Card Bundle

RigExpert AA-600, AA-1000 and AA-1400 are powerful antenna analyzers designed for testing, checking, tuning or repairing antennas and antenna feedlines. Graphical SWR (Standing Wave Ratio) and impedance, as well as Smith/polar chart displays are key features of these analyzers which significantly reduce the time required to adjust an antenna. Easy-to use measurement modes, as well as additional features such as connection to a personal computer make RigExpert AA-600, AA-1000 and AA-1400 attracti

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FDIC Fund Has Rallied, But Get Ready to Keep Paying Premiums
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TopOne 5.8Ghz FPV 11dBi high-gain panel antenna

TopOne 5.8Ghz FPV 11dBi high-gain panel antenna

  • Max.Power:50W
  • Polarize way:Vertical
  • Connector:RP-SMA
  • Input impedance: 50ohm
  • Size: 88x70x12mm

Technical Parameters: Frequency:5600-5900MHZ Gain: 11dbi Horizontal radiationlobe:45¡æ Vertical radiationlone:30¡æ Standing wave ratio:< 2.0

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OBOSS 6pcs 5.8G Right Angle SMA Female/Male Antenna Connector for RC Aircraft FPV

OBOSS 6pcs 5.8G Right Angle SMA Female/Male Antenna Connector for RC Aircraft FPV

  • Aircraft Connector

Features:
A brand new design, 5.8G Antenna connector for FPV aerial photo.
All the products have a strict test, the standing-wave ratio is lower than 1.5.
This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.

Specifications:
Total weight: 30g / 1.1oz

Package List:
2 * Right Angle SMA Female Antenna Connector with Female Plug
2 * Right Angle SMA Female Antenna Connector with Male Plug
2 * Rig

List Price: $ 24.00

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The U.S. Holds the High Cards and Its Time to Call Chinas Bluff
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Green Bay Packers' midseason grades
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Palstar AT2KD Differential Antenna Tuner

Palstar AT2KD Differential Antenna Tuner

  • 6 position mode switch for multiple antennas
  • matching range 20 Ohms to 1200 Ohms
  • Differential with 2 stators and 1 rotor; 13pF – 420pF@5kV
  • 160m to 6m (assuming resistive load)
  • 13.2″ wide x 5.75″ high x 12″ deep

The Palstar AT2KD antenna tuner covers 6 to 160 Meters with a power rating of up to 2000 watts PEP and is identical in all respects to the AT2K except instead of three controls, the tuner features just two to tune your antenna. The AT2KD matches dipoles, center fed doublets, Verticals, end-fed wire, delta loops, beams, Windoms, Inverted V’s and an optional external 4:1 or 1:1 current balun for balanced wire feeders can be purchased during check-out. Featuring a 6 position antenna selector switch

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Geena Davis: Kudos to Jennifer Lawrence, But Women in Hollywood Have a Long
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Emerging Markets: Opportunities Abound, Even in China
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Legally, Bud Light Lime Is a Craft Beer
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Cobra 29ltd Cobra 29ltd 40 Ch Classic Professional Cb Radio 40 Channel

Cobra 29ltd Cobra 29ltd 40 Ch Classic Professional Cb Radio 40 Channel

  • Retail
  • cobra 29ltd cobra 29ltd 40 ch classic professional cb radio 40 channel

Description: 29LTD: Full 40 Channel CB Radio
Full 4 watt AM RF power output
4-pin microphone connector
Delta-Tune controls allow users to fine-tune the quality of incoming signals and eliminates channel interference Tough and dependable dynamic microphone Dynamike control enhances microphone sensitivity SWR (Standing Wave Ratio) allows users to achieve the best performance Instant channel 9 for immediate connection to the emergency channel Dim switch all

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Juentai SRH805S Sma Female Connector Max 10watts VHF UHF 144/430MHz High Tri-Band Flexible Handheld Antenna for Kenwood Vitai Puxing Quansheng Tyt Baofeng Wouxun Etc Radios

Juentai SRH805S Sma Female Connector Max 10watts VHF UHF 144/430MHz High Tri-Band Flexible Handheld Antenna for Kenwood Vitai Puxing Quansheng Tyt Baofeng Wouxun Etc Radios

  • Frequency: 144/430MHz
  • Gain: 2.15dB/3.0db
  • Max power: 10W
  • Impedance : 50 ohm
  • Standing wave ratio(VSWR) : Less 1.5

Frequency: 144 / 430 /
Gain (MAX): 3.0db
Max power: 10W
Colour: Black
Impedance: 50 OHM
Connector:Sma-Female
Compatible Model:
HYT:
TC-268, TC-268S, TC-270, TC-270S.ect
VITAI:
VT-9900 VT-8800 VT-5000 VT-328 VT-UV9R VT-UVF1 VT-C5 VT-C6
Linton:
LT-2288, LT-5288, LT-2188, LT-2268
LISHENG:
LS-A188S , LS-E320
PUXING:
PX-777, PX-666, PX-3288, PX-888, PX-888K,PX-328,
PX-333, PX-999, PX-555
WOUXUN:
KG-659, KG-679, KG-669, KG-689, KG-699, KG-801,
KG-703, KG-UVD1P, KG-

List Price: $ 24.99

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5.8G Circular Polarized Antenna Right Angle SMA Male for FPV Aerial Photo RC Airplane Helicopters

5.8G Circular Polarized Antenna Right Angle SMA Male for FPV Aerial Photo RC Airplane Helicopters

  • A brand new design, 5.8 G Antenna gains for FPV aerial photo. All the products have a strict test, the standing-wave ratio is lower than 1.5.
  • This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.
  • The blue part can bend.
  • GGSM: 5.72G 5.74G
  • Straight shape with needle

A brand new design, 5.8 G Antenna gains for FPV aerial photo. All the products have a strict test, the standing-wave ratio is lower than 1.5.

This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.

The blue part can bend.

GGSM: 5.72G 5.74G

Straight shape with needle

——————————————————–

Package Including

1*RX-SMA antenna gain

1*TX-SMA antena gain

List Price: $ 13.98

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GOWE 100W TV transmitter UHF/VHF 50W 100W 300W in 19′ rack Professinal designed for TV station

GOWE 100W TV transmitter UHF/VHF 50W 100W 300W in 19' rack Professinal designed for TV station

  • TV Transmitter UHF/VHF; Power: 50W/100W/300W in a 60cm height 19′ rack; Professinal designed for TV stations; Big LCD displays all parameters; Switched power supply; High reliability; Low price; Overview: This product is the all solid-state Single-channel TV Transmitter, it adopts professional TV exciter, and it can use the single/duel exciter configuration, switching automatically. T
  • his transmitter has a variety of linear and non-linear pre-correction function, carrier frequency offset, and precision bias (with external precision reference source) function. It can prefabricate and control the half-power output, and it has remote control telemetry interface. The power amplifier used LDMOS FET, the analog and digital are both compatible, and it used high-quality switch parallel power.
  • The power amplifier and power supply are both used hot-plug devices. The power loss and standing wave of the one-time synthesis power combiner is small. The module of power amplifier display the working parameters in real-time. The whole machine has the protection of over-current, over temperature, over power and over-standing wave ratio. The master touch screen displays the working parameters of the whole machine and the module of power amplifier (PA) in real-time.
  • The 100W transmitter is installed in one 19inch chassis; it¡¯s suitable for medium or small TV station. Features: The whole machine is single-channel, image with audio together. The management and monitoring are intelligent and on network, it has the external PC interface. It has the technical data detection, monitoring systems and full-featured computer control software with auto-diagnostic function.
  • All technical parameters can be read through the LCD display panel. Comprehensive protection measures can reduce the damage of equipments. This machine has protection about no video; VSWR is too large, overheating, over-stimulus, missing phase protection and lightning protection. The switch has protection about overvoltage, over current, under voltage, over temperature, short circuit and lightning protection.

GOWE 100W TV transmitter UHF/VHF 50W 100W 300W in 19′ rack Professinal designed for TV station

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Election aftermath: Liz Kendall declares Labour leadership bid – as it happened
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RigExpert AA-1400 Antenna Analyzer 0.1-1400MHz and Ham Guides TM Pocket Reference Card Bundle

RigExpert AA-1400 Antenna Analyzer 0.1-1400MHz and Ham Guides TM Pocket Reference Card Bundle

  • RigExpert Antenna Analyzer 0.1-1400MHz
  • Ham Guides TM Pocket Reference Card Bundle

RigExpert AA-600, AA-1000 and AA-1400 are powerful antenna analyzers designed for testing, checking, tuning or repairing antennas and antenna feedlines. Graphical SWR (Standing Wave Ratio) and impedance, as well as Smith/polar chart displays are key features of these analyzers which significantly reduce the time required to adjust an antenna. Easy-to use measurement modes, as well as additional features such as connection to a personal computer make RigExpert AA-600, AA-1000 and AA-1400 attracti

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Palstar PALSTAR AT2K 2000 WATT ANTENNA TUNER and Ham Guides TM Pocket Reference Card Bundle

Palstar PALSTAR AT2K 2000 WATT ANTENNA TUNER and Ham Guides TM Pocket Reference Card Bundle

  • Palstar PALSTAR AT2K 2000 WATT ANTENNA TUNER
  • Ham Guides TM Pocket Reference Card Bundle

PALSTAR AT2K 2000 Watt Antenna Tuner Upgrading a Classic Tuner Among the Palstar line of Antenna Tuners the AT1500CV was one of our most popular and best-selling tuners. The combination of affordable pricing and high quality construction and performance made this the tuner of choice for many Hams making the switch to Palstar from other amateur radio manufacturers. Now, in line with Palstar’s policy of continual improvement, the AT1500CV has become the AT2K. The new AT2K antenna tuner covers 160

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FPV 5.8GHz RP-SMA-J Omni-direction Antenna for R/C Aircraft Model – White + Blue

FPV 5.8GHz RP-SMA-J Omni-direction Antenna for R/C Aircraft Model - White + Blue

Brand: no; Quantity: 1 Piece(s)/pack; Color: White + Blue; Material: PVC; Compatible device: R/C model; Functions: R/C model aircraft FPV; Other Feature: Connector: RP-SMA-J; Standing wave ratio:

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EverTrust(TM) 5.8G SMA Male Mushroom Antenna Gains FPV Aerial Photo RC Airplane 1 Pair

EverTrust(TM) 5.8G SMA Male Mushroom Antenna Gains FPV Aerial Photo RC Airplane 1 Pair

  • 100% brand new and high quality
  • A brand new design, 5.8G Antenna gains for FPV aerial photo.
  • All the products have a strict test, the standing-wave ratio is lower than 1.5.
  • This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.
  • Search EverTrust for more choices!

Features:
A brand new design, 5.8G Antenna gains for FPV aerial photo.
All the products have a strict test, the standing-wave ratio is lower than 1.5.
This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.
The blue part can bend.
GGSM: 5.72G 5.74G
Straight shape with needle.

Specifications:
Package size: 11.3 * 8.6 * 4cm / 4.4 * 3.4 * 1.6in
Package weight: 59g / 2.1oz

Package List:
1 * RX-SMA

List Price: $ 24.69

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EverTrust(TM) 5.8G Right Angle SMA Female Mushroom Antenna Gains FPV Aerial Photo RC Airplane 1 Pair

EverTrust(TM) 5.8G Right Angle SMA Female Mushroom Antenna Gains FPV Aerial Photo RC Airplane 1 Pair

  • 100% brand new and high quality
  • A brand new design, 5.8G Antenna gains for FPV aerial photo.
  • All the products have a strict test, the standing-wave ratio is lower than 1.5.
  • This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.
  • Search EverTrust for more choices!

Features:
A brand new design, 5.8G Antenna gains for FPV aerial photo.
All the products have a strict test, the standing-wave ratio is lower than 1.5.
This is exactly the first choice for FPV, and it can effectively expand the launch distance and angle.
The blue part can bend.
GGSM: 5.72G 5.74G
L shape with inner bore.

Specifications:
Package size: 11.3 * 8.6 * 4cm / 4.4 * 3.4 * 1.6in
Package weight: 63g / 2.2oz

Package List:
1 * RX-SMS An

List Price: $ 24.69

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RigExpert AA-54 Antenna Analyzer 0.1-54MHz and Ham Guides TM Pocket Reference Card Bundle

RigExpert AA-54 Antenna Analyzer 0.1-54MHz and Ham Guides TM Pocket Reference Card Bundle

  • RigExpert Antenna Analyzer 0.1-54MHz
  • Ham Guides TM Pocket Reference Card Bundle

RigExpert AA-30 and AA-54 are powerful antenna analyzers designed for testing, checking, tuning or repairing antennas and antenna feedlines. Mainly, these are SWR (Standing Wave Ratio) and impedance measurement instruments (vector impedance analyzers). Easy-to use measurement modes, as well as additional features such as connection to a personal computer (to plot Smith charts, etc.), make RigExpert AA-30 and AA-54 attractive for professionals and hobbyists. It is quite important that graphical d

List Price: $ 359.00

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360 Rotation Outdoor Digital Amplified Antenna TV DTV VHF HDTV UHF HD FM Rotor

360 Rotation Outdoor Digital Amplified Antenna TV DTV VHF HDTV UHF HD FM Rotor

This Is Our Brand New Outdoor Digital Antenna With A Built-In Rotor, The Antenna Can Turn A 360 Degrees Using The Infrared Remote Control Included With Package. This Is The Perfect Solution For Any Rural Or Suburban Areas. You Will Be Able To Pick Up TV Signals With Much Better Reception Than With A Regular Fixed Or Rabbit Ears Antenna, As The Antenna Can Be Aimed At Any Particular Direction. In Addition, It Easily And Fast To Install, No Technical Knowledge Needed And Grabs Local Channels Fast

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http://sciencehideout.net

What is the difference between a travelling wave and a standing wave? Here are a couple helpful demonstrations that you will most certainly understand.
Video Rating: 5 / 5

Maxwell’s Equations are intuitively explained in this tutorial video. We give an overview of each of Maxwell’s Equations, what they mean, and discuss some of the consequences of these equations, such as the wave equation. For more information, see www.maxwells-equations.com

Here’s your video introduction to ARRL General Class License Manual Lesson 5.1, Signal Review. The section is primarily review, but let’s spend a few minutes walking through the vocabulary so the concepts are firmly in mind before proceeding to the subsequent sections. This video covers continuous wave (with a brief excursion back to the spark era), carriers, modulation, modes, AM, and Single Side Band. Included is an actual on-the-air demo with a spectrum scope to look at an AM signal showing the carrier and both sidebands, and how each sideband contains all the information. A demonstration follows with just single sideband modulation. The video concludes with an introduction to angle modulation modes such as FM and phase modulation. You can see more about these videos by going to www.ke0og.net/general, where you will find a complete list of the videos that accompany the ARRL General Class License Manual for Ham Radio.

Why Is This Man Smiling?
No one can call Jim Inhofe a “climate change denier” anymore. The senior senator from Oklahoma was not among the dissenter in yesterday's 98-1 vote “to express the sense of the Senate that climate change is real and not a hoax.” That would be Sen.
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Swiss Franc Bets Turned on a Dime
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(the sum of two oppositely travelling waves of equal amplitude)
Video Rating: 0 / 5

ken25taylor’s webcam video April 11, 2011 01:31 PM.

Bell Labs Wave Machine: Standing Waves

Standing waves are created on the Bell Labs apparatus. The apparatus is “open” at both ends, therefore the number of nodes is equal to the number of overtone…
Video Rating: 5 / 5

Engineering Electromagnetics by Prof. Sheel Aditya sir.

engineering electromagnetics by Prof. Sheel Aditya.

RigExpert AA-54 HF/VHF Antenna Analyzer (0.1-54MHz)

RigExpert AA-54 HF/VHF Antenna Analyzer (0.1-54MHz)

  • Rapid check-out of an antenna
  • Tuning an antenna to resonance
  • Making coaxial lines or measuring their parameters
  • Cable testing and fault location
  • Measuring capacitance or inductance of reactive loads

RigExpert AA-54, a powerful antenna analyzer designed for testing, checking, tuning or repairing antennas and antenna feedlines. Mainly, these are SWR (Standing Wave Ratio) and impedance measurement instruments (vector impedance analyzers).

List Price: $ 412.85

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Cisco Linksys Router Antenna / Wifi Antenna comes with two antennas + brace bracket kit for a stronger internet connection signal. 7dbi TNC internet wifi booster antenna network extender. Linksys router high gain wifi internet antenna booster Works with both Wireless-G and Wireless-B devices (Connector Reverse TNC Wireless Internet Antenna Booster). NEWER MODEL OF HGA7T – Item# LINK-TTY

Cisco Linksys Router Antenna / Wifi Antenna comes with two antennas + brace bracket kit for a stronger internet connection signal. 7dbi TNC internet wifi booster antenna network extender. Linksys router high gain wifi internet antenna booster Works with both Wireless-G and Wireless-B devices (Connector Reverse TNC Wireless Internet Antenna Booster). NEWER MODEL OF HGA7T - Item# LINK-TTY

  • Boost your wireless wifi internet connection!
  • Easy to Install! ROUTER NOT INCLUDED!
  • Comes with two (2) Antennas and bracket!
  • Compatible with: Linksys Cisco WRT54G (except Version8), WRT54GS, WAP54G,
  • BEFW11S4, WAP11 & AS2TNC .

NEW Linksys HGA7T 7dBi High Gain Antenna R-TNC TNC W/Holder.
Increase the range of your Wireless network! Attach these high gain antennas to your Linksys Wireless Broadband Router or Access Point, and increase both the effective strength of the outgoing signals, and the receive sensitivity for incoming signals.
The added signal strength and sensitivity also improves close-range communication reliability because every packet comes through “loud and clear”, reducing retransmissions due to weak sig

List Price: $ 13.95

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A Hypnotizing Timelapse Captures An Atmospheric Standing Wave
Filmed at the Mount Washington Observatory in New Hampshire on February 3, 2012, this stack of lenticular clouds echo layers of moist and dry air forced into waves by the mountain range below. The timelapse condenses time in a ratio of more than 10:1, …
Read more on io9

SpaceShipTwo Crash: Mach 1 Is Still the Worst Place to Be
A jet going at Mach 1 or Mach 2 doesn't refer to a specific speed, like kilometers per hour. A Mach number is the ratio of speed of an object to the speed of sound. The speed of sound is also relative to the medium being traveled. Ryan Stanley, an …
Read more on IEEE Spectrum

Tabletop experiment could detect gravitational waves
A passing high-frequency gravitational wave would cause the disc to vibrate, setting up standing waves of sound across the 2 mm thickness of the disc. The upper surface of the disc is slightly curved to trap sound quanta (phonons), which improves the …
Read more on physicsworld.com

A resonant simulation of a monochromatic periodic wave runup onto a plane beach. For more details, please, consult our corresponding publication (accepted to…
Video Rating: 5 / 5

Tuneable / Adjustable 48″ Firberglass CB Antenna Whip – 3/8-24 Thread

Tuneable / Adjustable 48

  • Tuneable Tip under Cap.

Maximum efficiency on your favorite channel.
This rugged, flexible, 48″ fiberglass replacement whip is tunable for minimum standing wave ratio and maximum efficiency. Designed as a replacement whip for RadioShack’s #21-973 Adjustable Fiberglass Single Trucker CB Antenna, its standard 3/8″ x 24 thread works with all common CB mounts.

List Price: $ 24.99

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http://demonstrations.wolfram.com/PartialStandingWaves The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new ent…

HGA7T – Wifi Booster / WIFI Adapter / Wifi Router Antenna / Wireless Internet Antenna Booster. For Cisco Linksys Routers (antenna). Wireless internet adapter for routers that use Wireless-G and Wireless-B. High Gain 7dbi WIFI booster antenna.

HGA7T - Wifi Booster / WIFI Adapter / Wifi Router Antenna / Wireless Internet Antenna Booster. For Cisco Linksys Routers (antenna). Wireless internet adapter for routers that use Wireless-G and Wireless-B. High Gain 7dbi WIFI booster antenna.

  • Boost your wireless wifi internet connection!
  • Comes with two (2) Antennas and bracket!

NEW Linksys HGA7T 7dBi High Gain Antenna R-TNC TNC W/Holder.
Increase the range of your Wireless network! Attach these high gain antennas to your Linksys Wireless Broadband Router or Access Point, and increase both the effective strength of the outgoing signals, and the receive sensitivity for incoming signals.
The added signal strength and sensitivity also improves close-range communication reliability because every packet comes through “loud and clear”, reducing retransmissions due to weak sig

List Price: $ 29.00

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ECE3300 Lecture 8-7 quarter wave transformer

How to apply the quarter wave transformer in a 3dB power splitter; More info: www.ece.utah.edu/~ece3300.
Video Rating: 5 / 5

Discussion of the energy carried by propagating waves, derivation of the instantaneous and average wave power.
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Velocity, Wave Number, and Angular Frequency

This video talks about how the relationship between velocity, wave number, and angular frequency comes from the wave equation.
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Definition of the signal to noise ratio (SNR) and simple computations with it. More instructional engineering videos can be found at http://www.engineeringvi…
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Cortland, KA5S demonstrates and explains standing wave at the March meeting of the Grand Rapids Amateur Radio Association.
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This lesson covers the basic concepts of standing waves, phase shift, and the reflection and transmission of one-dimensional transverse waves.

http://www.physicseh.com/ Free simple easy to follow videos all organized on our website.

This short video shows simulations of a one-dimensional wave travelling along positive x-axis performed using two-dimensional Finite-Difference technique. Th…
Video Rating: 0 / 5

Short-Circuited Transmission Line

An FDTD simulation of a sinusoidal voltage as it propagates along a 50-ohm transmission line. The generator is 2.0 V in amplitude with a 50-ohm output impeda…
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A brief overview of important propagation fundamentals when using Radios. Made by the Film Board of Canada for the Royal Canadian Air Force.

Acoustic Instabilities in Aerospace Propulsion by Prof. R.I. Sujith, Department of Aerospace Engineering, IIT Madras. For more details on NPTEL visit http://…
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Open ratio 5 1

Gaussian, digital, and sine wave voltage wave are sent down transmission lines with varying loads to show how each will behave. The actual voltage on the lin…
Video Rating: 5 / 5

This video is to show how to use an SWR meter….yes i know i have bad swr, im trying to get a better antenna soon.

check the curve as i go from 28mhz down to 26mhz. once i tighten the bits up and get it up in the air we’ll see how it performs..
Video Rating: 1 / 5

Wave Mechanics Playlist at: http://www.youtube.com/user/InvariantSpace Shows how the superposition of two waves travelling in opposite direction will set up …

Bestes Angebot bei аmazоп.dе http://is.gd/bsVG2U RA3505B SWR Vektor Specifications* Output frequency range:1-35MHz(HF)* Micro Power Meter input signal freque…
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Red Ice Radio - Alex Putney - Pt 4 - Human Resonance & Sacred Sites

Alex Putney who is behind the interesting website HumanResonance.org joins us on the program to discuss his work and theories on standing waves, geometrical …
Video Rating: 4 / 5

The speaker is being driven with a sine wave at a frequency which matches the frame rate of the video camera (29.97 fps).

Standing wave of particles

Standing wave of particles Simulated by Hades.

A short video of how to receive U.S. citizens band stations in northern Spain The antenna used is a 2 element delta loop for 10 meter band radio and the Flex…
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333 & Red Rider talk about sports and the contest 333 is in 3rd place of.
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240v AC home base station radio.
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This time on Hak5 we continue our SDR series by building our very own ADS-B antenna. All that and more, this time on Hak5 ! The reception at 1090 MHz is line-of-sight, and is restricted to…

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Installing a Channel Master 1.2m dish for Sky abroad http://www.satcure.co.uk.

No calculations, refer record.

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MEDIDOR DE ROE Y WATÍMETRO PARA HF 2015A. DESDE 1,6 HASTA 60 MHz. MÁX. 200w.
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Day 3 Standing Waves on String

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