“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
Tear down of the ABBREE tactical VHF/UHF antenna
Several comments on the previous video asked me to tear it down, so here we go. Read more
The 40/80/160 Meter Coil-loaded Inverted V Dipole Antenna
The 40/80/160 Meter Coil-loaded Inverted V Dipole Antenna See all details: Link Read more
BIG SIGNAL 2BS-5B – 5 band antenna
In BIG SIGNAL we present the multi-band cubic antenna with 2 elements and 5 bands. The true queen of DX! E ste is a model that breaks all the schemes... Read more
Emergency Antenna Platform System (E-APS) – WC2FD
A system to facilitate emergency radio communications from parking lots using lamp posts as antenna masts. Designed and built by the kids of th... Read more
8.5 DB gain for less than $40.00 – 50MHz Yagi
by W3GAS The Yagi is one of the simplest directional antennas you can build today. There are no moving parts, and the Yagi can be matched to 50 OHM v... Read more
App - Mobile
APRSdroid – APRS for Android
What is APRSdroid? APRSdroid is an Android application for Amateur Radio operators. It allows reporting your position to the APRS (Autom... Read more
QTH.app version 0.8.0 released
In amateur radio, the “QTH” Q-code means “What is your position?” when used as a question or “My position is…” when used as a statement. The Automatic... Read more
SmartSDR for iOS v2.6.2 Now Available
FlexRadio Systems announces the release of SmartSDR for iOS v2.6.2 is now available for download or update from the Apple App Store. This App requires... Read more
Tutorial – Using the new routing function in RT Systems featuring RFinder
Once again RFinder and RT Systems have partnered to kick radio programming up a notch. This tutorial will show you how to get the most o... Read more
SDR Receiver for IOS version 1.2.1 has been released
SDR Receiver demodulates and plays AM and FM signals received by an RTL-SDR, Airspy HF+ or SDRplay radio. Requires a radio and a host comput... Read more
Contesting
FT8 Roundup Rules
FT8 Roundup 1. Objective: Amateurs worldwide contact and exchange QSO information with other amateurs using FT8 on 80, 40, 20, 15 and 10 meter bands.... Read more
Canada Day 2020 Contest Under Way
Each year on July 1, the anniversary of Canada’s Confederation, Radio Amateurs of Canada (RAC) sponsors the Canada Day Contest. The event continues un... Read more
Jamboree on the Air Takes Place this Weekend
Scouting’s Jamboree on the Air (JOTA) and concurrent Jamboree on the Internet (JOTI) will be held Friday, October 16, through Sunday, October 18. A ne... Read more
2015 CQ WW Survey Results – part 2
The CQ WW Contest Committee conducted a survey of contesters from September 2 to 29, 2015. Invitations were sent to everyone who had submitted a log... Read more
49th Contest VOLTA RTTY
49th ALESSANDRO VOLTA RTTY DX CONTEST www.contestvolta.it The SSB and RTTY Club of COMO and the A.R.I. (Associazione Radioamatori Italiani) are please... Read more
News
ARRL Audio News – July 28, 2017
“ARRL Audio News is a weekly compilation of news stories from the ARRL Letter. Hosted by ARRL’s Sean Kutzko (KX9X) and Carla Pereira (KC1H... Read more
A mayday mystery and secrets of the NSA
BY ALAN WILEMAN When Secretary-General of the United Nations Dag Hammarskjöld‘s Douglas DC-6 airliner SE-BDY went down over Andola, Northern Rh... Read more
Heil Sound Celebrates 50 Years
Heil Sound is marking 2016 as “50 Years of Maximum Rock & Roll.” The yearlong celebration will kick off at the Winter NAMM show in January. A comm... Read more
International Space Station SSTV Set to be Active June 6 – 7
The International Space Station (ISS) Amateur Radio Slow Scan Television (SSTV) system is expected to be active on 145.800 MHz FM on June 6 and 7, lik... Read more
Free HPM 150th Birthday Event Logging Software Now Available
Scott Davis, N3FJP, perhaps best known for the ARRL Field Day software that bears his call sign, has developed a free logging program for ARRL’s Happy... Read more
