What makes a truly world-changing invention?. Of all the inventions of the 20th century just one could be said to have changed the world in such a way that it touches virtually everybody on the planet’s lives on a daily basis. It has enabled the most rapid development in technology in history and yet you cant see the vast majority of them directly and their individual job is just to switch on and off. This is the story of the MOSFET and how it changed the world.
Antenna
APARTMENT ANTENNA, HF, 40M-2M – MFJ-1622
The MFJ-1622 Apartment Antenna covers 40 through 2 Meters, mounts outdoor to windows, balconies, railings, and works great indoors mounted to d... Read more
ALEXLOOP HAMPACK SYSTEM
PY1AHD ALEX the ALEXLOOP Portable Magnetic Loop creator working on his home factory. Shown is the new AlexLoop tuner used in the HamPack. The spacing... Read more
PST-RR55D-PRO – Ring Rotor
Ring rotor for trellis up to 52cm on the side. It can be mounted anywhere on the truss. The whole structure is made of laser-cut AISI316 stainless ste... Read more
Force 12 FPA-20-OCF Vertical running through 8 to 6 meters
Does your neighborhood forbid antennas but allow flagpoles? Is tearing up your lawn to lay 64 radials not an option? Or maybe you just want a high-per... Read more
C31XR-JK Tribander 10/15/20m – Re-Designed, Optimized & Improved
The C31XR-JK (Tribander) has been re-designed, optimized & Improved from the very popular Force 12 Tribander of all times for contesters and Dx... Read more
Review
Review of CW Morse Paddles with weighted base
“CW Morse (cwmorse.us) makes a variety of inexpensive, 3D-printed Morse code keys. They’ve now added paddles for iambic keyers to their li... Read more
Yaesu FT DX10 Unboxing, First Impressions and Visual Comparison to the Icom IC-7300 / FTDX10 FT-DX10
Yaesu FT DX10 Unboxing, First Impressions and Visual Comparison to the Icom IC-7300 / FTDX10 FT-DX10 Read more
![SWR Simplified [ ARRL PODCAST ]](https://qrznow.com/wp-content/uploads/2019/03/antenna-analyzer-mfj-225-swr-265x168.jpg)
SWR Simplified [ ARRL PODCAST ]
A discussion of SWR — Standing Wave Ratio — can be complicated, but it really doesn’t need to be. Read more
Make a mains filter for EMC & noise reduction
This video shows how I have made a mains filter that is extremely effective in reducing and in some cases eliminating completely EMC from the electric... Read more
Equipment
The BT1500A Antenna Tuner – Palstar
The BT1500A 1500 watt balanced antenna tuner is the only 1500 Watt, Double-L Network antenna tuner on the market today covering 20m to 160m (25... Read more
SSB-Electronic GmbH 9300
Perseus SDR 10 kHz to 30 MHz Direct Sampling HF Receiver P E R S E U S is a Software Defined Radio covering a frequency range of 10 kHz to 30 MHz. (U... Read more
Icom IC 718 – HF Transceiver
Icom IC 718 – HF Transceiver THE ORIGIN OF THE HF TRANSCEIVER Simple operation The IC-718 is equipped with a minimum number of buttons and cont... Read more
“New Elecraft K4s in production
K4 TRANSCEIVER We’re pleased to announce our new top of the line transceiver, the Elecraft K4. It combines the latest in direct-sampling technology wi... Read more
How to Build A 130 Watt Dummy Load for HF Ham Radio
In this video I go through the building of a paint can dummy load that a ham radio operator may require for testing and tu... Read more
