[*] [-] [-] [x] [A+] [a-]  
[l] at 12/14/19 10:57pm
Manufacturers/Transceivers
Amateur radio, commercial, two way handheld and mobile transceiver manufacturer produce VHF UHF analogn and digital DMR two-way radio

[Author: author@dxzone.com]

[*] [-] [-] [x] [A+] [a-]  
[l] at 12/13/19 11:52pm
The Antone AT-D578UV-PRO is a true TWIN band radio for digital DMR radio systems, compatible to MOTOTRBO Tier 1 and 2 and traditional FM Mode.

[Author: author@dxzone.com]

[*] [-] [-] [x] [A+] [a-]  
[l] at 12/13/19 11:52pm
Ham Radio/Clubs/Europe/UK/Wales
North Wales Amateur Radio Group (NWARG) was formed in December of 2019 by a group of radio amateurs that yearned for a local club that encouraged it’s membership to use all modes of amateur radio, to experiment with radio, to learn about radio and above all to be friendly and supportive of all of it’s members.

[Author: author@dxzone.com]

[*] [-] [-] [x] [A+] [a-]  
[l] at 12/12/19 11:14pm
Software/Antenna analysis
The program consists of tabbed pages for various antenna and transmission line calculation. You can compute the values for an inverted L network that will allow you to match the 50 ohm output of the radio, or you can compute the necessary length in the units of choice for a 5/8 wave vertical for 10 meter band.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/11/19 11:02pm
DX Resources/DX Peditions/2019 DXpeditions
11-20 December 2019 A5B HF Bands 160 - 6m CW SSB FT4 FT8

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/10/19 11:12pm
Linux and Amateur Radio - Presentation, Build A Single-Sideband Transceiver From Scratch, Hermes-Lite Low Cost HF SDR, PolEx Technologies, Using AM Broadcast Stations as 160m Beacons, Optimizing Ground Radials in End-Fed Antennas, Icom IC7300 Modifications by M0FOX, Wi-Fi Rotor Controller, Advanced Antenna Modeling Book by ON5AU

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/10/19 11:12pm
Operating Modes/Ham Radio Balloons
High Altitude Ballooning makes for a challenging project that sometimes turns into an engrossing hobby. Whilst it is not rocket science it does encompass a wide range of fields (sometimes literally) and there is a lot to learn before you send your first flight up into the sky.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/9/19 11:47pm
Technical Reference/Arduino
A simple accu keyer made with Arduino that works well with QRQ CW. Free to download arduino sketch and youtube video demonstration.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/8/19 11:31pm
Technical Reference/Frequency Counter
This project includes quite a number of useful testing features which were very useful when building other projects. Almost all the components used to construct this frequency counter were scrounged from old circuit boards and junk equipment.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/7/19 11:30pm
Antennas/Receiving
The receiving antenna setup for the top band, made with a 9 elements vertical antenna array, remote controller and remote relais.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/6/19 11:11pm
Radio Equipment/Antenna Analyzers
The NanoVNA is a very compact handheld Vector Network Analyzer. The NanoVNA is tiny and portable analyzer, and it offers a high performance capabilities with an embedded lcd display.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/5/19 11:03pm
Technical Reference/Radio Frequency Interference
Removing disturbing RFI from the Behringer HA400 Headphone Amplifier, using ferrites and capacitors soldered in the main circuit board of the small amplifier.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/4/19 11:15pm
DX Resources/DX Peditions/2019 DXpeditions
4-13 December 2019 DX Pedition to Saint Martin focused on low bands

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/3/19 10:59pm
Software/Antenna analysis
This software connects to a NanoVNA and extracts the data for display on a computer, and for saving to Touchstone files.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/2/19 11:13pm
Speaker Wire Doublet Antenna, 160m portable vertical antenna, RV marine battery as power source, Decoding Numbers Stations - QST Article, CW Trainer - Arduino Project, Space weather impacts on Climate, Guide to DMR Code Plugs, Seiuchy On-line morse code trainer, World Wide Radio Operators Foundation, JTAlert

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/2/19 11:13pm
DX Resources/DX Peditions/2019 DXpeditions
JA1XGI will be active 2-9 December 2019 as V6K mainly HF Bands

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 12/1/19 11:35pm
Antennas/Satellite
How to make a dual-band VHF/UHF handheld Moxon Antenna to work satellites

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/30/19 11:43pm
Antennas/Moxon
Homemade moxon antenna for the 40 meter band. This article is not very descriptive but includes some very detailed images

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/29/19 11:47pm
IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/29/19 11:13pm
Antennas/Receiving
In this article the author shows the receiving loop antenna for 160 meters band installed at his QTH. Diagram and movie available. Article in in Turkish but can be translated in english

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/28/19 11:22pm
Technical Reference/QRP Projects
DK7IH QRP transceiver for 14 MHz. This small and compact home made transceiver with a max power output of 5W, the VFO module is based on the clock oscillator chip Si5351A by Silicon Labs ATmega168 and OLED 1306

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/27/19 11:28pm
The WSJT Development Group is pleased to announce the general availability (GA) release of WSJT-X Version 2.1.0.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/27/19 11:28pm
Technical Reference/HF Radios
This article describes the construction of a high performance transmitter and receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band with output range 15 to 20 watts and a top audio sound quality both on transmit and receive.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/26/19 11:14pm
Technical Reference/QRP Projects
The Micro24 is a ultra compact microsize QRP SSB transceiver for the 20 meters amateur radio band. This transceiver is so small that it fits into one hand.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/25/19 11:39pm
Ham Radio/Exams
Prepare for the exams with Radio examens in Nederland.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/24/19 11:27pm
Amateur Radio - State of the Hobby - Survery, DL7AHW Spraycan EH Antennas, SDR Receiver using a Tube, KX3 GoBox 2012, dmrconfig - DMR Radio Programming Utility, WSQCall A Weak Signal QSO mode for LF/MF, MorseTeacher MorseMachine On-Line, CW QSO Trainer, UHF Radio Chat with your Raspberry Pi, FSQCall Fast Simple QSO

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/24/19 11:27pm
Antennas/Masts and mounts
A homemade simple and inexpensive portable antenna support, handy for quick trips to the field and other portable operations

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/23/19 11:03pm
Technical Reference/SWR Meters
Undestanding and measuring SWR, Standing Wave Ratio in antenna feed lines. This article also introduce basic concepts and usage guidelines of amateur radio antenna tuners

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/23/19 12:46am
DX Resources/Nets
A great way to provide a public service and maintain your skill as an operator is to be a net control station. Being net control is rewarding and not overly difficult.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/21/19 11:13pm
Antennas/Longwave
BIKELOOP is a VLF home made antenna. This antenna is a double magnetic loop composed by two orthogonal loops. This document describe how the prototype was built, the purpose is to give some construction hints to people who wants to try this kind of antenna. Mathematical and electrical details are described as well

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/21/19 11:13pm
DX Resources/DX Peditions/2020 DXpeditions
OH2BH will be active on all bands up to April 17 2020

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/20/19 11:34pm
Antennas/Magnetic Loop
A home made magnetic loop for HF Bands. This small and compact loop is designed to support small power transmissions on HF bands, from 7 MHz to 21 MHz

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/19/19 11:01pm
Ham Radio/Clubs/North America/USA/Alabama
The hams of Tuscaloosa have been serving the community since 1931

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/18/19 11:24pm
Antennas/Vertical
The advantage of 5/8 wave antenna is that it has the lowest angle of radiation and has about 1dB more gain when compared to 1/4 and 1/2 verticals. So the 5/8 should be the favourite choice for DX.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/17/19 11:04pm
Operating Modes/Mobile/Bicycle
Homebrewing a UHF antenna to be used on a bicycle. This simple project gives you the right hints on how to build and setup and install a 70cm antenna on a bicycle.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/16/19 11:07pm
The CQ WW is the largest Amateur Radio competition in the world. Over 35,000 participants take to the airwaves on the last weekend of November (CW) with the goal of making as many contacts with as many different DXCC entities and CQ Zones as possible.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/16/19 11:07pm
Radio Equipment/HF Transceivers/Elecraft KX2
A comparison of Elecraft KX2 and Yaesu FT-818

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/16/19 11:07pm
DX Resources/Logs
Online log for TX7T DX pedition from Marquesas

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/15/19 11:28pm
Manufacturers/Morse Key
21st Century telegraphy paddles, software defined telegraphy paddles by 9A5N. Following global trends in the application of the latest technology, HAM 9a5n has made a significant technological breakthrough in the field of CW paddles

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/15/19 11:28pm
DX Resources/DX Peditions/2019 DXpeditions
TX Marquesas 2019 Nov 6 - 2019 Nov 19, 60-10m; CW SSB FT8 QSL via LoTW official web site

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/15/19 12:04am
DX Resources/DX Peditions/2019 DXpeditions
2019 Nov 14 - 2019 Nov 2 IOTA OC-035 By RZ3FW R4WAA fm Efate I (IOTA OC-035); 160-17m; CW SSB RTTY FT8: QSL via TBA

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/13/19 11:17pm
The Expert Electronics SunSDR2 DX is a compact HF 6m 2m VHF SDR Transceiver with a modern design

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/13/19 11:17pm
Antennas/Towers
Photo gallery of a work of several weeks consisting of the construction of 5 towers and 28 antennas at the new Jonesport, ME station.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/12/19 11:22pm
DX Resources/DX Peditions/2019 DXpeditions
All HF Bands CW/SSB/DIGI CQ WW CW anb Online log St. Eustatius DXpedition

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/11/19 11:50pm
DX Resources/DX Peditions/2019 DXpeditions
TX Marquesas 2019 Nov 6 - 2019 Nov 19, 60-10m; CW SSB FT8 QSL via LoTW official web site

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/11/19 11:50pm
DX Resources/DX Peditions/2020 DXpeditions
I will QRV again from Tongatapu Island (OC-049) as A35JP from 24th November 2019 to November 2020. This time, I will be stationed there as a resident supervisor of the international coorporation project. From 24th November 2019 to November 2020 160m-6m. CW, SSB, FT8

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/11/19 11:50pm
Operating Aids/History
The history of radio documented in thousands of publications including copies of popular US and UK amateur radio magazines and newsletters since 1930s

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/10/19 10:51pm
Antuino - Antenna Test Equipment, WA3TFS Projects, Circuit Boards and Kits for Amateur Radio , miniVNA PRO Modifications, The Cubical Quad is Beautiful, Daki Funkversand, Bergendorffs Radiomuseum, TE Systems 6 Meter Amplifier Review, A Collins 75A-4 Restoration, Quad Antenna On-line Calculator, Icchipword

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/10/19 10:51pm
Operating Aids/History
The history of radio documented in thousands of publications including copies of popular US and UK amateur radio magazines and newsletters since 1930s

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/10/19 12:29am
Technical Reference/Amplifiers/HF Amplifiers
A 600W 1.8 MHz to 54 MHz power linear amplifier made using rugged MRF300 transistors featuring output power between 580W and 750W depending on band, power supply: 48V, 18A typical, 20A max

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/8/19 11:51pm

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/8/19 11:51pm
Operating Modes/Satellites
How to program Baofeng handheld transceiver with satellite frequencies, and how to get alerts when satellites are visible by using a smartphone app. A beginners guide to work satellites with a common VHF handheld radio.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/7/19 11:36pm
Antennas/Tuners
An article that explain with simple concepts and basic theory the correct usage of antenna tuners. It covers some aspects of common questions newcomers have on what antenna tuners are for, and what antenna tuners will never do.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/6/19 11:25pm
Antennas/VHF UHF
Experimental Long Boom Antennas - CP, LPDA, multiband with several NEC Files for 50MHz 144MHz 222 MHz 432MHz but also 902MHz and 1296 MHz Antenna projects. Includes also for each antenna model, in a general comparison table each antenna characteristics including Directive Gain, G/T, E-F/R, H-F/R abd Boom Length. This is a great value comparison table of several commercial and home made VHF UHF antenna projects.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/5/19 11:03pm
DX Resources/DX Peditions/2020 DXpeditions
W8S Official web site of the Swains Island March 2020. Information about the Team, plans, frequencies and info on the Swains island

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/4/19 11:35pm
Operating Modes/Portable Operations
An article describing equipment needed to make portable operations evenin winter cold times. The article is completed by a nice video describing not only the radio setup but even the tent and power supply equipment

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/3/19 11:11pm
Technical Reference/Raspberry Pi
An interesting guide to installing software on a Raspberry for amateur radio use. This documentation cover the Raspberry Pi 4 version that whose hadware is powerfull enought to fullfill all requiriements for ham radio programs.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/3/19 12:14am
Technical Reference/HF Radios
How to build a complete Single-Sideband amateur radio transceiver from scratch. Article published on hackaday dot com includes an introduction to radio architectures, ssb receivers and tramsitter

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/2/19 12:19am
The SDRplay RSPdx is a complete redesign of the popular RSP2 and RSP2pro multi-antenna receiver. It is a wideband fullfeatured 14-bit SDR which covers the entire RF spectrum from 1kHz to 2GHz.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/2/19 12:19am
Technical Reference/Ham Radio Go Kits
A very compact and multifunctional digital amateur radio station for the radio operation at home, on the way or in the emergency radio implemented with a Raspberry Pi 4, an Elecraft KX2, a Kenwood TH-D74 and a USB GPS.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 11/1/19 12:25am
Antennas/Antenna Books
A new book about modeling antennas with EZNEC and in particular in conjunction with the AutoEZ application for a total of 584 pages. The book include more than 3000 accompanied downloadable EZNEC model files

[Author: author@dxzone.com]

As of 12/15/19 9:23am. Last new 12/13/19 11:52pm.

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