“Testing to see how bad powerline internet connections can be for HF reception.
These devices allow you to use your house power cables as a convenient Ethernet connection for sharing the internet. However they are extremely noisy and can wipe out the entire HF band. Also known as powerline networking and powerline communications (PLC).
Using a TP-Link Powerline Adapter, Wellbrook Loop Antenna and Airspy R2 with SpyVerter to show the spectrum. The last part of the video shows a 20 MHz view in the wide band viewing software SpectrumSpy.
Interestingly it appears that the amateur radio (ham) frequencies are actually carefully notched out and those frequencies remain relatively clean. But international shortwave radio is still wiped out which is bad news for SWL hobbyists. In the video you can see where the ham bands are by the red marking blocks in SDR#.”
Antenna
HF Vertical Antenna – Cushcraft R9 covers 6,10,12,15,17,20,30,40,80 Meters
HF Vertical Antenna • NO GROUND SYSTEM OR RADIALS NEEDED • RUGGED CONSTRUCTION • INSTANT BAND CHANGING • SLIM LOW PROFILE SILHOUETTE This multi... Read more
Ham College 24 : Antennas and more questions from the Technician pool
Antennas and more questions from the Technician exam pool. Read more
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40/20/10 Meter Fan Dipole Attic Antenna by KD2GOE
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Robot Adds New Twist to NIST Antenna Measurements and Calibrations
The National Institute of Standards and Technology (NIST) has been pioneering antenna measurement methods for decades, but a new robot may be the ulti... Read more
App - Mobile
What is Echolink? Ham Radio 2.0: Episode 56
Mark Goodrum, W5MHG, discusses Echolink for Ham Radio at the Duke City Hamfest Read more
Training fast CW on Android (Koch method)
The user starts by recognizing only two letters, M and K, at high speed (at least 20WPM) on a 5 minutes session. When she or he will be able... Read more
RFinder – The World Wide Repeater Directory now free trial on Android!
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Antenna Tool App – Android
A tool to help ham radio, CB, and other radio users to create antennas of various types. Calculations available for dipole, vertical (1/8, 1/4, 3/8, 1... Read more
HamSphere 4.0 Mobile APP
HamSphere 4.0 Mobile is a virtual portable Ham Radio transceiver for Shortwave, VHF and UHF bands. Talk with thousands of Ham Radio operators around t... Read more
Contesting
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CQ Worldwide DX Contest, CW 2014 [ 3830 Scores Rumors ]
Photo: CN2AA Team – QSOS 23832 – 76 M points – Multi Multi Check the CQ Worldwide DX CW Contest 2014 Contest Scores Rumors ! ... Read more
New UK/EI DX Contest to Launch in December
Rules – UK/EI DX Contests – SSB and CW 1. General The aim of these contests is to promote contacts between stations... Read more
EA PSK63 Contest Rules
Organized by.- Unión de Radioaficionados Españoles (URE); delegated in EA4ZB. Participants.- Entry is open to all radio amateurs in possession... Read more
WW South America CW Contest
Hello dear CW friends: We want to thank all fo you for your WWSA CW CONTEST support, which over the years is becoming a classic of the telegraph amate... Read more
Registration Open for Dayton Contest University
Student registration is now open for 2016 Dayton ConTest University (CTU), to be held all day on Thursday, May 19, 2016, at the Crowne Plaza in downto... Read more
News
California Radio Amateur is Wildfire Victim
A Calaveras County, California, radio amateur — Mark McCloud, K6YCV — fell victim to the Butte Fire on September 16. He was one of two fatalities that... Read more
GETTING READY FOR DAYTON!
“George Thomas’ guide to shopping for quality audio connectors. How to spot good audio connectors with George, Show Us Your Project... Read more
ARRL 2017 Annual Report Focuses on Hurricane Response
The ARRL 2017 Annual Report, which highlights the organization’s efforts and activities throughout 2017, is now available. Starting with the cover pho... Read more
Amateur Satellites at Skills Night
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Ulrich Rohde, N1UL, Recognized for Pioneering Work on SDR
Ulrich L. Rohde, N1UL, of Synergy Microwave Corp was invited to deliver the sixth Sir J.C. Bose Memorial Lecture at the IEEE Hyderabad Section on Dece... Read more
