Chris from our Development Team gives an overview of Over-The-Horizon (OTH) High Frequency (HF) Analysis in Systems Tool Kit (STK) that is new in version 12.1. This feature can be used for both communications modeling as well as radar modeling. This uses the VOACAP model for skywave propagation losses.
Antenna
Fixing a brand new Cushcraft A3S beam antenna
Cushcraft A3S Three Element Beam – 10, 15 & 20 Meters A3 World Ranger, our top selling tribander, has become the A3S with all stainless ste… Read more
Comet GP-15 Tri-Band VHF/UHF Base Vertical Antennas GP-15
Comet GP-15 Tri-Band VHF/UHF Base Vertical Antennas provide good gain figures on the 6-meter, 2-meter, and 70-centimeter bands in a compact 7.9 foot p… Read more
40/20/10 Meter Fan Dipole Attic Antenna by KD2GOE
40/20/10 Meter Fan Dipole Attic Antenna by KD2GOE Read Full Article on http://www.worldwidedx.com : Read more
Solid Delta loop for 20m band
Delta loop Antenna Boom length: about 7m, projection on the ground 4m per arm Mounts on mast from 40 to 50mm, 60mm optional. suggested height at least… Read more
HF 8 band Fan dipole multiband antenna 160-6 meters with Balun
HF 8 band Fan dipole multiband antenna 160-6 meters with Balun Product Description The 5 element fan dipole works very well at covering all the bands… Read more
Review
ID-4100A vs ID-880H Smackdown
ID-4100A VHF/UHF Dual Band D-STAR Transceiver Specifications General Frequency coverage TX RX 144–148, 430–450 MHz 118–174, 230–550 MHz* *Guaranteed… Read more
WA9ZCO Wins the February QST Cover Plaque Award
The winning article for the February 2020 QST Cover Plaque award is “CW Combo Key” by Marc Alan Winzenried, WA9ZCO. The QST Cover Plaque Award —… Read more
Your First HF Transceiver, Advice from Jim Heath W6LG
Jim Heath W6LG discusses buying your first HF transceiver if you are new to amateur radio. This is broad, general advice for someone buying a first HF… Read more
Ham radio Frequency Chart
Ham radio Frequency Chart Graphical Frequency Allocations 2200 and 600 – meter bands General, Advanced and Amateur Extra class licensees are aut… Read more
Equipment
The Foxx-3 Transceiver – 80m, 60m, 40m, 30m, 20m versions available
Connections are as follows: antenna via 50 ohm BNC, power via 2 pin 0.1″ header, headphones via 3.5mm mono or stereo jack plug or 2 pin h… Read more
DC9DZ: Project Tsunami 40K – Power Amplifier (PA) using 4CX15000AA
Data of DRESSLER Tsunami-40K RF Linear Amplifier Frequency bands all HF amateur bands 1.8 MHz to 29.7 MHz Power supply 3 power supply transformers 200… Read more
The New Yaesu FT-991A
Yaesu FT-991A The New FT-991A – HF/50/144/430 MHz All-Mode “Field Gear” Transceiver – Coming October 2016 The FT-991A is the n… Read more
Kenwood TS-990S
Kenwood TS-990S Key Features HF/50MHz Flagship Base Station 200 watts output from 50V FET Push-pull PA stage +40dBm Intercept Point RX Main RX… Read more
LDG – AT-1000ProII – Antenna Tuner
LDG – AT-1000ProII – Antenna Tuner Building on the success of the AT-1000Pro, LDG Electronics has refined and expanded its flagship 1KW t… Read more
News
Coast Guard Proposes to Discontinue HF Voice Watchkeeping
The US Coast Guard has invited comments by January 21, 2021, on a proposal to discontinue HF voice watchkeeping. The proposal appeared on No… Read more
RadioShack to be reborn
RadioShack The good news is that as of today RadioShack has officially been purchased by Retail Ecommerce Ventures (REV), giving the troubled company… Read more
Best Black Friday Deals for 2020 for HAM RADIO
Best Black Friday Deals for 2020 for HAM RADIO Read more
Dayton Hamvention Announces its 2021 Theme — “The Gathering”
“The Gathering” will be the theme for the 2021 Dayton Hamvention®. Hamvention General Chair Rick Allnutt, WS8G, said the theme reflects what has been… Read more
Still Time to Apply for Foreign Service Information Management Technical Specialists-Radio Positions
The deadline to apply for US Department of State Foreign Service Information Management Technical Specialists-Radio (IMTS-R) positions is December 1,… Read more
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