This video illustrates how RF (radio frequency) standing waves are created in transmission lines – through the addition of the forward (transmitted) wave and the reflected wave that results from improperly terminating the line or matching the load or antenna to the transmission line impedance. I have done several videos that relate to transmission lines, terminations and reflections – all of which tell a piece of the story. This video is another piece, and I hope it helps you to understand how standing waves are formed and what the “look” like. This wikipedia link has some great graphics (shown in video)
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NIAGARA-ON-THE-LAKE, ON, May 2, 2016 /CNW/ – IES Communications announces that it will become the exclusive distributor of Modulator Demo... Read more
Jacek, SP5APW will be active from Rong Sanloem AS-133 as XU7AKC between April 13-19, 2016. QRV on HF bands from the Secret Paradise Resort with clear... Read more
“With heavy heart I report the ham radio world just lost an outstanding contester, DXpeditioner, and ambassador for the hobby. Bill Vanderheide,... Read more
WLW (700 AM) – branded Newsradio 700 WLW – is a commercial news/talk radio station serving Greater Cincinnati. Owned by iHeartMedia, WLW is a 50,000-w... Read more
MOBILE, Ala. (WPMI) — A group of Gulf Coast community members is gearing up to drop everything and assist in the aftermath of Michael. NBC 15’s... Read more
DUO 8 15-20 SF is a fullsize antenna for 14 MHz and 21 MHz. No traps or adapting systems where used to obtain fantastic performances and the best band... Read more
Recent Posts
IES Communications announces an exclusive distribution agreement for ham radio MDSR Software Defined Radio kits for Eastern Canada
XU7AKC – Rong Sanloem Isl, AS-133
N7OU – SK – Contester and DXpeditioner
WLW’s 500,000 Watt Transmitter and Super Tower
Mobile HAM Radio operators help Florida with communications after Hurricane Michael
![DR9A – VHF – UHF – Super Contest station [ Video ]](https://qrznow.com/wp-content/uploads/2019/09/DR9A-265x168.jpg)
Antenna DUO8 15-20 separate feed – Momobeam
App - Mobile
RUMlogNG2Go for iOS version 3.3 now available
Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.3 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be do... Read more
Morse Decoder for Android Smartphones and Tablets
Morse Decoder decodes Morse code characters through the built-in microphone of your Android device. Morse Decoder can be used by Ham Radio operators o... Read more
Rfinder for Visually Impaired on Android
Rfinder Tom W3ZX, a visually impaired ham gives a great demo on Android using TalkBack for the visually impaired. See More: http://www.rfinder.net/blo... Read more
CWSpeed IOS App – The fun and efficient way of learning morse code
Description The fun and efficient way of learning morse code! Features: – Uses Koch’s training method (the most efficient known to date)... Read more
EchoLink App for IOS8
Description Please note: This app is for licensed Amateur Radio operators only. See www.echolink.org for more information. EchoLink for iOS provides a... Read more
Equipment
Ameritron AL-572
Ameritrons new class of Near Legal Limit Amplifiers give you nearly full legal SSB power output for 65% of the price of a full legal limit amplifier... Read more
ANAN-8000DLE HF & 6M 200W SDR Transeiver
The ANAN-8000DLE HF & 6M 200W SDR Transceiver meets and exceeds the requirements of even the most discerning Amateur Radio Operator, it is based o... Read more
SDRplay announces the RSP2
The RSP2 is our new enhanced version of the popular RSP1 which provides three software selectable antenna inputs, & new stability and clocking fea... Read more
Introducing the NEW BCS-200 Speaker Mic by BridgeCom Systems:
BridgeCom Systems, Inc is pleased to announce the availability of the BCS-200 Speaker Mic for the amateur and commercial radio markets. Introducing th... Read more
Audio Amplied Speaker Microphone designed for the Elecraft KX 2 and KX3 transceivers
Elecraft radios have acheived excellence in quality and design for the fast growing market of QRP Portable Operators. The AlexMic is a Audio Amplied S... Read more
News
ATTACK of the ZOMBIE SATELLITE : Run radio hams , run!
by Adam Banks A satellite launched by the US military has gone rogue and is causing interference to radio hams across Europe. The US Navy’s PCSat NO-4... Read more
HRD Software, LLC Announces Departure of co-Founder, Rick Ruhl, W4PC
HRD Software, LLC HRD SOFTWARE, LLC ANNOUNCES DEPARTURE OF CO-FOUNDER, RICK RUHL, W4PC TO PURSUE OTHER INTERESTS Tampa, FL; Dallas, TX; St. Paul, MN —... Read more
Getting started in Meteor Scatter (MS)
I’d like to share with you all my passion for working station on VHF (6m, 4m and 2m) using Meteor Scatter (MS) as the propagation mode. I do this dur... Read more
Yaesu USA update Feb. 1st, 2019
Update on our current specials through April 30th, 2019; a renewal of a program, Hamcation news for Yaesu, and other items. Read more
Annual Armed Forces Day Cross-Band Communications Test Set for May 14
The US Army, Air Force, Navy and Coast Guard will cosponsor the Armed Forces Day Military/Amateur Radio Cross-Band Communications Test on Saturday, Ma... Read more
Software
New JTDX v2.0.1-rc136 available!
JT65 – JT9 – T10 – FT8 – WSPR JTDX 2.0.1-rc136 22nd May for evaluation and on air testing, this rc (release candidate)... Read more
Ham Radio Deluxe Version 6.3.0.554
Ham Radio Deluxe Version 6.3.0.554 Tampa, FL; Dallas, TX; St. Paul, MN —June 16, 2016 After a wonderful Dayton Hamvention the team is back home and wo... Read more
Ham Radio Deluxe v6.4.0.787 is now available
“Folks, Our 9th release since April is now available for download at www.Ham-Radio-Deluxe.com Version 6.4.0.787 has 30 changes since the last re... Read more
SDR-Radio v3.0.23 Release
Logic updated, should work with any AD sample rate. Gain menu corrected, extraneous entries removed. Works with 822x which must be in single channel m... Read more
SDRuno v1.2 BETA Sneak Peek
SDRplay is a UK company. The RSP SDR receivers are made in the UK and can be purchased for worldwide delivery directly from http://www.sdrplay.com ... Read more
