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
Using A Uniden Wireless Mic For ICOM Radios??
Would you like a wireless mic option for your ICOM radios? Well, there is a way to do it with a Uniden CB mic. And it’s kind of neat! Read more
ACOM 2020S | Solid-State 1.8-54 MHz Linear Amplifier
The ACOM 2020S is a state-of-the art 1500 W heavy-duty, solid-state linear amplifier, covering all amateur bands from 1.8 to 54 MHz. It features a Rem... Read more
SPECTRAN V6 X
Aaronia presents the SPECTRAN® V6 X: the world’s first and only 8 GHz USB spectrum analyzer with dual USB true I/Q streaming of up to 245 MHz (v... Read more
Review
Moonraker FIRESPOT MMDVM Hotspot
Here we take a look at the Moonraker Firespot. An MMDVM Digital Hotspot that uses an Orange Pi in replacement for the hard to get hold of, Raspberry P... Read more
SWR Meter – Internal Vs External
Eddy, K6SDW, is trying to find out which SWR meter he sould us. He wants to know which SWR meter should he use to tune the antenna circuit, the built-... Read more
What secrets is it hiding? FX-4C
HF SDR Transceiver 10W Amateur Radio AM FM CW SSB FX-4C Read more
VHF
ISS Crossband Repeater Ham Radio Contacts!
How hard is it to make contacts over the ISS Crossband repeater? Thanks to Robert W5ITR https://www.qrz.com/db/W5ITR for demonstrating his very nice r... Read more
ABBREE AR-F8 6 BAND HANDHELD
Here we take a look at the ABBREE AR-F8 handheld transceiver. Does this really do 20 Watts? I think we know that answer already..! Read more
The IC-905 Debut! Ham Expo Walkthrough
The IC-905 Debut! Ham Expo Walkthrough Aim higher and enter the world of SHF. The IC-905 is an industry-first all-mode transceiver with 144/440/1... Read more
App - Mobile
![HAM-Toolbox [ APP ]](https://qrznow.com/wp-content/uploads/2022/10/hamclock-1200x997-1.webp)
HAM-Toolbox [ APP ]
Tools for HAM-Radio Operators HAM-Toolbox provides a variety of useful Tools to help you operating your HAM-Radio. The Tools are ranging from activity... Read more
iWSPR TX – WSPR for iOS version 3.1
iWSPR WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Normal transmissions carry a sta... Read more
The Android SDR App That Beats Them All! Supports RTL-SDR Airspy HackRF and Many More!
Android SDR App SDR MUST be plugged in before starting SDR++ and you MUST press refresh in the SDR source you’re using befor... Read more
Software
New Release of Win4IcomSuite
Win4IcomSuite There is a new release of Win4IcomSuite (version 1.430). This release averaging in the SDRPlay spectrum and includes a few bug fixes. Wi... Read more
IC-705 Firmware Update
IC-705 type firmware product name IC-705 version Version 1.30 release date 2022/10/13 Major changes Changes from Version1.27・Added DV repeater monitor... Read more
New custom band framing feature in SDRuno
SDRuno Check out Mike KD2KOG’s new video guide to this feature: Documentation is on page 66 of the updated manual: https://www.sdrplay.com/docs/SDRpla... Read more
