“Nestled deep in the Chequamegon-Nicolet National Forest in Northwest Wisconsin is the small town of Clam Lake. Clam Lake is best known for the excellent hunting and fishing in the area, and of course the herd of elk that roam the countryside. But the elk population is more of a side effect of what I’m going to talk about today. At one time this area was home to a military base and in fact, world war three could have been signaled from its location. I’m talking about Project ELF, the Navy’s program to send messages to submarines deep under water. Let’s explore Project ELF, a cold war relic that still has an impact today.”
Antenna
InnovAntennas XR7 & XR7C
InnovAntennas After the success of the XR6, InnovAntennas announce today the release of the new XR7 models. The XR7 is based on the XR6 model which co... Read more
SIGMA 3010 HD: 10 THROUGH 30 MHZ HEAVY DUTY VERTICAL DIPOLE FOR USE WITH AUTOTUNER
High Performance, Ultra-Rugged 30m Through 10m 6 Band (With Feedpoint Mounted ATU) Vertical Dipole Under 16 Feet Tall! No Radials! Force 12... Read more
Diamond HFV-5 – 5-Band (40/20/15/10/6) Limited Space Trapped Dipole
Trapped Dipole 5-Band (40/20/15/10/6) Limited Space Trapped Dipole Detailed Description 5-Band Limited Space Trapped Dipole Bands: 40/20/15/10/6M Mast... Read more
Antenna experiment – Fractal Quad for 28 Mhz band
“After reading many antenna articles in the Internet and a couple ARRL antenna books I got interested in physically small HF antennas. My... Read more
New InnovAntennas Quads
NEW FOR 2018! Following on from our successful LFA-Q compact quads, we are adding a more traditional looking quad to our range which boasts two of the... Read more
New! 40m Rotating Dipole by G0KSC
G0KSC has again broken from tradition and introduced a new design, this time a 40m rotating dipole. The Delta C-140 is under 12m wide and despi... Read more
New ! SteppIR SARK-110 Antenna Analyzer
The SARK-110 is a completely new design concept for an Antenna Analyzer. This is a truly pocket size device, so you can take it anywhere. It of... Read more
Review
“ Volt-Ohm Meters ” – The Doctor Will See You Now! [ ARRL Podcast ]
Volt-Ohm Meters These meters have been around for decades and remain one of most useful pieces of test equipment you can own. “Volt-Ohm Meters” is t... Read more
Fully Wireless ICOM IC-705 to Computer Connection for Digital Modes (WSJT-X, JS8Call, WinLink)
-The dream of completely wireless connection between radio and computer is a reality with Firmware 1.20 on the ICOM IC-705. I know have a few of my co... Read more
RM Italy MLA100 Amplifier Demonstration
“Mark, W8BBQ show the RM Italy MLA100 amplifier to get over 100 watts from a QRP rig. 160 meters through 10 meters plus 6 meters. Allows you to... Read more
RSPduo gives outstanding results vs a rig costing 10X the price!
This video, released today by AE5X shows how well the RSPduo performs up against the Flex6300: Read more
HF Band Plan Review
Over the past 18 month a proposal for an IARU HF Digital Mode reorganization has been undertaken by representatives of all three IARU Regions IARU-R1... Read more
10 Common Mistakes Made With Software Defined Radio
If you’re a new comer to the SDR or SWL hobby then here’s 10 things which will help get you started and choose the right equipment to use,... Read more
Kenwood TH-D74 [ APRS SETUP ]
Kenwood TH-D74 Read more
Equipment
OM4001A – OM POWER amflifier – 4 KW
OM4001A General description and the advantages of the OM4001A amplifier The OM Power model OM4001A is an automatic power amplifier, designed for use o... Read more
PRE-RELEASE INFORMATION – IC 9700 [ ENGLISH ]
IC 9700 – 144, 430/440, 1200 MHz ALL MODE TRANSCEIVER Read more
RigExpert Stick 60kHz – 35MHz Analyzer
RigExpert Stick 60kHz – 35MHz Analyzer | State-of-the-Art Antenna & Cable Analyzer Key Features: Frequency range: 0.06 to 35 MHz, upgradable... Read more
NanoVNA SAA2 Version 2 Vector Network Analyzer – Ham Radio Antenna Analyzer
NanoVNA SAA2 Version 2 Vector Network Analyzer – Ham Radio Antenna Analyzer Read more
The “Splinter II” QRPp Receiver / Transmitter
Like the original Splinter…only better! Here’s what you get: 1. 40 meter DC receiver with improved audio. 2. Sidetone volume is now variable. 3... Read more
OM-Power 4001A Fully Automatic HF Amplifier
OM-Power 4001A Fully Automatic HF Amplifier General description and the advantages of the OM4001A amplifier The OM Power model OM4001A is an automatic... Read more
Introducing to Odyssey-2 (2017)
The new version of Odyssey TRX transceiver raises the bar of quality and capabilities, while remaining relatively cheap and simple, accessible for sel... Read more
Elad FDM-DUO: now available in camouflage!
FDM-DUO is a SDR tranceiver that offers the possibility to operate STand-alone like traditional radio or attached to a Personal Computer discovering t... Read more