The History of Single Sideband

Single sideband modulation revolutionized electronic communication, but where did the idea come from? Antique Wireless Association Curator Emeritus Ed Gable, K2MP, tells the surprising story of single sideband, its origins, the developers, companies and the hardware that brought it to the forefront of wireless communication. This presentation is the first of the AWA’s monthly “AWA Shares” series.

Antenna

Another Look at the4 Alpha-Delta DX-EE Antenna

April 08, 2020 No comments

The Super Elastic Signal Stick antenna review and testing

June 03, 2020 No comments

< Who is Signal Stuff? In a world where Amateur Radio ought to be on the cutting edge of technology, far too often hams are seen as being “old s... Read more

Adjustiwave Antenna – 80m through 2m

September 30, 2019 No comments

Adjustable 1/4 wave antenna – homebrew version Read more

The F-LOOP Antenna 5.3-29.7 MHz

May 19, 2015 No comments

The F-LOOP was designed with weight, durability, portability, versatility and cost in mind. The unique craftsmanship of the CHA F-LOOP distingu... Read more

Rotatable 160 Meter Receiving Loop – WB6RSE Wins July QST Cover Plaque Award

July 22, 2015 No comments

The winner of the July 2015 QST Cover Plaque award is Steve Lawrence, WB6RSE, for his article “Rebuilding a Receiving Flag Antenna for 160 Meters.” Th... Read more

Review

KN-990 SDR All Mode HF Transceiver With IF DSP 0.1 – 30 MHz

April 04, 2021 No comments

Here we take a look and test the KN-990 SDR All mode HF Transceiver. This radio is well built and includes an IF DSP for great sounding audio. KN-990... Read more

Tips on using Coaxial Cable [ ARRL So Now What? ]

July 25, 2019 No comments

Here you can find further information on topics discussed in this episode: ARRL on Feed Lines Coaxial Cable info Read more

Unboxing of Buddipole Antenna Deluxe Package

December 07, 2018 No comments

“We unbox (unbag) and examine the Buddipole Deluxe Package. The Buddipole is a portable HF/VHF antenna that works from 40m up to 2 meters. Speci... Read more

Does the ICOM IC-7610 equal two IC-7300?

March 01, 2020 No comments

Does the ICOM IC-7610 equal two IC-7300? Read more

New All-band SSB/CW Micro BITX Now Available

January 04, 2018 No comments

“HFSignals.com now offers the uBITX (micro BITX) HF radio, an all-band QRP rig that operates both sideband and CW, for the truly remarkable pric... Read more

Equipment

Ham Clock

November 22, 2015 No comments

A Clock That Looks Like An Analog Voltmeter This is the Model AWK-105 Analog Voltmeter Clock designed by Awkward Engineer. It tells time with two anal... Read more

LP-500 Digital Station Monitor

May 06, 2015 No comments

General (exclusive features in red) * Bright, High Resolution 5″ Color TFT Display * 32-bit Main Processor * Graphics and Audio coprocess... Read more

ICOM IC-705 [New]

August 30, 2019 No comments

ICOM IC-705 IC-705 has just been unveiled by Icom at the Tokyo Ham Fair. This is a portable HF/VHF/UHF transceiver featuring SDR technology, internal... Read more

HF-One MKII – 30Khz to 30MHz – QRP

April 23, 2016 No comments

MFJ Antenna Switches [ Video ]

November 21, 2016 No comments

MFJ Antenna Swiches MFJ-1702C MFJ-2702 MFJ-2703 MFJ-2704 MFJ-1701 MFJ-1703 MFJ-1700C Read more

News

Loops and Wires

January 27, 2022 No comments

Ron, WD8SBB, has a couple questions concrning different antenna set ups and uses. Lets see what happens… Read more

Pirates Battle Over Shortwave Radio – UVB-76

January 26, 2022 No comments

UVB-76 The frequency of a suspected Russian military shortwave radio broadcast, known as the “buzzer” for its recognizable repeating channel marker, h... Read more

ACOM Company Tour

January 25, 2022 No comments

ACOM Company Tour. HF power amplifier production – ACOM 1010, ACOM 1000, ACOM 700S, ACOM 1200S, ACOM 1500, ACOM 2100 and ACOM 2000A. Read more

Weak Signals Heard from Spanish Satellites EASAT-2 and HADES

January 25, 2022 No comments

AMSAT-EA (Spain) has said it appears that EASAT-2 and HADES are transmitting, and that weak signals have been heard, but the satellites’ antennas may... Read more