Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations. In addition to helping invent the telegraph, Samuel Morse developed a code (bearing his name) that assigned a set of dots and dashes to each letter of the English alphabet and allowed for the simple transmission of complex messages across telegraph lines. In 1844, Morse sent his first telegraph message, from Washington, D.C., to Baltimore, Maryland; by 1866, a telegraph line had been laid across the Atlantic Ocean from the U.S. to Europe. Although the telegraph had fallen out of widespread use by the start of the 21st century, replaced by the telephone, fax machine and Internet, it laid the groundwork for the communications revolution that led to those later innovations.
Equipment
Icom AH-705 Announced on Christmas
AH-705 HF/50 MHz Automatic Antenna Tuner Features Covers the 1.8 MHz to 50 MHz bands, using a long wire element 2-way power sources using alkaline bat... Read more
mAT-705 Tuner Introduction
mAT-705 Tuner Introduction The MAT-705 is a very small and powerful tuner for portable shortwave devices, especially designed for the Icom IC-705. The... Read more
THE NEW MOUNTAIN TOPPER MTR-4B V2 BY LNR PRECISION
MTR-4B V2 Photos COMING SOON “The Mountain Topper” The LnR Precision MTR transceivers are designed to be efficient portable CW rigs. Whether climbing... Read more
Review
How Your Radio’s Final Amp Class Affects Efficiency
An Oggie asks why his radio draws so much more power than the 100 watts it puts out. The answer lies in using linear final power amps in the Class A,... Read more
My Wife Bought More Radio Gear On Wish and Ali Express
My wife surprised me at the end of 2020 with a new random box of goodies from Wish and AliExpress. Today we unbox some of these ODD radios and radio a... Read more
FTdx10 vs IC-7300 Comparison
This week Jonathan compares the new Yaesu FTdx10 and the Icom IC-7300. What are your comments on either? Read more
VHF
AMSAT/Vanderbilt RadFXSat-2/Fox 1E Set to Launch
Virgin Orbit’s LauncherOne is a go for launch on Wednesday, January 13, at 1500 UTC, carrying the AMSAT/Vanderbilt RadFXSat-2/Fox-1E CubeSat into spac... Read more
144 MHz signal from the Faroe Islands heard 3000kms away in Bulgaria during Geminid Meteor Shower – Dec 2020
Every year, the Geminid meteor shower peaks around the 14th of December and many VHF radio amateurs make contacts by bouncing signals off the meteor t... Read more
QYT KT-780 Plus 100 Watts 2 meter Mobile Radio Review and Demo
The QYT KT-780 Plus is a 100 watt mobile radio on the 2 meter Amateur Radio Band, and works on FM mode. Today we will walk through the menu of the rad... Read more
App - Mobile
SignalID – Automatic Radio Signal Identification for Android
There’s an incredible amount of radio signals. It’s impossible to know them all, let alone recognize them. So why not get help from Signal... Read more
EchoHam version v2.10 has been released
EchoHam allows Amateur Radio operators to use the Echolink network from their Mac. You must be a licensed Amateur Radio operator to use this software.... Read more
SatSat for IOS version 1.4.11 has been released
SatSat, by Fabrice Aneche is a satellite tracking software, for radio amateurs, scientists or hobbyists. It displays current and next passes for any s... Read more
Software
New WSJT mode Q65
WSJT-X 2.4.0 will introduce Q65, a digital protocol designed for minimal two-way QSOs over especially difficult propagation paths On paths with D... Read more
Ham Radio Deluxe
Read this BEFORE you download and install this software. Keys formatted like “ASDF-QWER-ZXCV-ASDF” will NOT work. That software license se... Read more
Gqrx 2.13 is out!
Gqrx SDR 2.13 argilo released this 15 hours ago Stereo option for UDP streaming. Script to generate AppImage. Allow scroll wheel direction to be inve... Read more
