[*] [-] [-] [x] [A+] [a-]  
[l] at 7/1/20 11:16pm
Technical Reference/Transverters
The transverter is 28MHz IF and > 50w output (300w peak in later versions) on 70MHz.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/30/20 11:17pm
Antennas/2M
YU7EF EF0206 2m Band 6 Element Yagi Antenna project, provides 11.8 dbi gain

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/29/20 11:28pm
Antennas/Beverage
This simple beverage ntenna is easy to make, easy to setup, and it offers great RX performance.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/28/20 11:02pm
BX-184 Voice Keyer, FT991 MARS Mod, Making a Quadri Filar Helix antenna, Ecoflex-15 Degradation, Gigatronix Coax Cables, SIVA Coax Cables, WoSARS Glasgow

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/28/20 11:02pm
Antennas/Array
A stacked Yagi array for ZL1SIX 2m WSPR

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/27/20 11:13pm
Antennas/20M/20 meter Yagi antennas
This antenna was designed for the CQ WW CW 2009 at EA8URL. All elements are made out of fishing rods with an insulated copper cable fixed on the rods by cable ties. Both fishing rods and cable are UV resistant.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/26/20 11:23pm
Operating Modes/Satellites
Practice these operating techniques so you will be ready to capture that 100-point bonus on Field Day. QST Article

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/25/20 10:52pm
Shopping and Services/Ham Radio Insurance
The purpose of this insurance is to guarantee the pecuniary consequences of the civil liability incumbent on the insured due to consequential bodily, material and immaterial damage caused to third parties as a result of their radio amateur activities

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/24/20 11:22pm
Let this microprocessor controlled MFJ Contest Voice KeyerTM call CQ, send your call and do contest exchanges for you in your own natural voice!

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/24/20 11:22pm
Radio Equipment/HF Transceivers/Kenwood TS-590S
With high impedance earphones plugged into the audio jack on the Kenwood TS-590S or TS-590SG, you can hear a really annoying noise even with the AF volume set to zero. A simple quick-and-dirty solution is a resistor in series to the audio output.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/23/20 11:30pm
Antennas/ZS6BKW
NEC models are used to explore the GR5V and ZS8BKW optimizations. A third optimization is also rediscovered. The effect of fixed lengths of 75 ohm coax are explored. A link to the NEC model is provided.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/22/20 11:38pm
Antennas/Satellite
In this article author illustrate a homemade yagi antenna for satellite operations. The antenna includes a VHF antenna and an UHF antenna with a band splitter.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/21/20 11:16pm
Getting Started with Satellite Communications, Multiband trap dipole , FT-857D Serial and Sound Card Interface, FSK vs AFSK, How To Build a Quadrifilar Helix Antenna for Weather Satellites, 160m Kite Vertical Antenna, TYT MD-380 Review by Miklor, TYT MD-380 firmware modification, Yaesu FT-991 Memory Manager, MD-380 Modifications

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/21/20 11:16pm
Radio Equipment/Voice Keyers
A voice keyer kit available on the marker in two models, BX-184 is the replacement PCB for those who already own an MH-31 microphone. Kit BX-184M includes an MH-31 besides the PCB for those not owning one yet.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/20/20 11:26pm
Antennas/Stealth
Living in a no antenna deed restricted community sounds bad for a HAM, but it means you just need to be more creative. I have found this will not stop your DXCC activities and many of my local HAM club members will agree

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/19/20 11:05pm
Antennas/Theory
Presentation about Practical Antenna Modeling Using the NEC Codes with examples of HF wire antennas and 4NEC2. How to define and edit the models, Running the simulations, Work some examples, Variables usage, Deal with Feed Lines and ground

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/18/20 11:20pm
Antennas/Portable
Have you ever thought of setting up a portable HF station for an activity like the Field Day ?

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/17/20 11:51pm
Technical Reference/Pan Adapter
How to setup a band-tracking panoramic signal display to work along to your transceiver.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/16/20 11:08pm
Antennas/OCF
The OCFD Off-Center-Fed Dipole Antenna is an excellent multiband antenna that is relatively simple to construct, yet gets quite decent performance.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/15/20 11:06pm
Software/Software Defined Radio
If you want to use an RTL SDR USB dongle with Windows 10 and you experience problems, you may find this free utility very useful

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/14/20 11:15pm
Online Morse Code Training, Taming the Quadrifilar Helical Antenna, 2E0RDJ - Amateur Radio & Weather Station, NOAA Satellite Reception with QFH Antenna, VHF Baluns: Fact and Fancy, 2.3GHz to 432MHz RX converter for FT-817, 100 Watt RF Power Amplifier for 2 GHz, Emergency Net Log, 137MHz Quadrifilar Antenna, Yaesu FT-857D Select Knob Wobbles - How to replace,

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/14/20 11:15pm
Antennas/Beverage
How do two-wire reversible direction Beverages work, an excellent document that explains fundamentals of beverage antennas.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/13/20 11:58pm
Operating Modes/Portable Operations
Operating marine mobile with antennas for 15-17-20 meters band.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/12/20 11:10pm
Antennas/Traps
The problem with making your own trapped HF antennas is usually getting the coaxial traps tuned to frequency. This article explains a method using a RF signal generator at +10dBm output into the coaxial trap.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/11/20 11:46pm
Antennas/Traps
How to home made antenna traps with material you can easily find, and how to properly tune it.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/10/20 11:34pm
Technical Reference/Radio Programming Cable
How to make a custom cable to program your baofeng or kenwood radio. Includes a video on how make a Baofeng Programming Cable for Chirp on Mac OSX

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/9/20 11:35pm
DX Resources/Contest
Official web site of URE contests including the King of Spain HF CW and SSB Contest

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/8/20 11:09pm
Software/Grid Bearing and Maps
GridLocW is a free Lat/Long to Maidenhead converter for Windows - with optional GPS support, includes the formula to calculate geodesic distance (in m) between two points specified by latitude/longitude.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/7/20 11:09pm
Software/Log Analysis
Log viewer for WSJT-X is an external utility to parse the WSJT-X log and check for duplicate contacts or making additional analysis.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/6/20 11:01pm
How to accurately sync your PC clock using software programs that connect NTP servers or GPS system

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/6/20 11:01pm
Software/Weak Signal
Do you want to see how your FT8 signals are being received in the other parts of the globe?

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/6/20 11:01pm
Software/Time
Time-Sync is a freeware software to synchronize the time of your system. Time-Sync is installed as a service, the configuration is very easy for each user and can be done in a few steps. Up to five redundant time servers can be configured.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/6/20 11:01pm
Software/Time
GPSTime is a small freeware applet that corrects your PC clock using GPS. GPSTime reads the serial data coming out of your GPS receiver and decodes the $GPRMC messages to determine the precise UTC time. Works on Windows Vista/7/8/10 with PC with serial ports.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/6/20 11:01pm
Software/Time
A means of sync-ing your computer clock using a GPS Receiver. GPS2Time is another GPS network time synchronization software application for Window 7 and higher. Freeware.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/5/20 11:53pm
Software/Time
BktTimeSync synchronizes the PC time using an internet time server (NTP server) or a GPS receiver connected to USB, serial port or Bluetooth. Great for use with digital modes like FT8, JT65, JT9, JS8Call and others. For the operation of this program requires an active internet connection or a GPS receiver. This program works on all versions of Windows 32 or 64 bit

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/4/20 11:15pm
Software/Time
NetTime is a simple and free software to sync your computer clock via internet. Very useful tool for FT8 FT4 operating modes.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/3/20 10:49pm
Software/Radio Control
Program for the control of the transceiver from your PC. Works on windows and has been tested with different serial and USB interfaces, Based on hamlib libraries , Auto CQ for repetitive calls, Audio Recorder, BktNetInterface for JTDX and WSJT-X

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/2/20 11:06pm
WSJT-X 2.2.0 has been officially released and it includes improvements and fixes for all digital modes like FT8 FT4 JT4 JT66 WSPR

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/2/20 11:06pm
Software/Radio Control
BktRemote Suite is a package of programs that allow you to control the transceiver with different devices via a LAN connection or WiFi. The whole suite is composed by BktRemoteServer and BktRemoteClient

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/2/20 12:09am
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 6/1/20 11:35pm
Beginning from version 2.2.0 WSJT-X will not run anymore on Windows XP and Windows Vista anymore.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/1/20 11:35pm
QFH antenna for NOAA Satellites, SDRGadgets, JSatTrak - Satellite tracking program, Google Earth Grid Square Locator, Folded Dipole Antennas, Online Morse Code Training, Taming the Quadrifilar Helical Antenna, World Grid Square Map PDF, RF Exposure Evaluating Your Station, Interactive Maidenhead Grid Square Locator Map

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/1/20 11:35pm
Software/Time
JTSync is a simple utility that provides the ability to synchronize your computer clock over a network with world-wide NTP servers. When the Internet connection is not available, JTSync allows you to make time adjustments based on decoded QSOs within the WSJT-X application.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 6/1/20 12:06am
Antennas/J-Pole
A multiband J-Pole antenna project that cover 144,220 and 430 MHz. The articles includes several pictures of this multi-band antenna, including handmade schematics and diagrams, project is mainly in Italian

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/30/20 11:40pm
Operating Aids/Time
As FT8, JT65 and JT9 are a time synchronized protocol, one soon discovers that an accurate PC clock is very important. If your workstation time is off it can cause you to send when no one is listening, or to listen when no one is sending.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/29/20 11:16pm
Software/Radio Control
Windows PC control program for the Icom IC-7300 transceiver. Power-on and Power-off by software BktNetInterface for JTDX and WSJT-X, audio recording, memory management, cw keyer management, Interface for other software

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/29/20 12:00am
WSJT-X development team has added a second set of suggested dial frequencies for FT8 on three HF bands and also on 6 meters.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/29/20 12:00am
Software/Time
Meinberg NTP software to sync your computer clock. NTP client package with IPv4 IPv6 support for Windows XP and newer.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/27/20 11:05pm
Antennas/Active
Active antennas can be very useful, in particular they can help reduce local electrical noise by allowing the antenna to be installed in a corner of the garden well away from house wiring. The original PA0RDT antenna uses a very small patch for the antenna and relies on the antenna being installed quite high.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/26/20 11:21pm
Antennas/6M/6 meter J-Pole Antenna
How to setup and configure the buddipole antenna in the J-Pole mode for the six meter band

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/25/20 10:58pm
The WPX Contest is based on an award offered by CQ Magazine for working all prefixes. Held on the last weekend of May (CW), the contest draws thousands of entries from around the world.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/25/20 10:58pm
Software/Grid Bearing and Maps
Grid Calculator allows you to calculate either a grid square locator or the latitude and longitude of a location. Grid Calculator can be used to calculate a Great Circle bearing and distance between two stations in statute miles, nautical miles, and kilometers.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/24/20 11:31pm
Elecraft K4 Update - High-Performance Direct Sampling SDR by Wayne Burdick, N6KR

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/24/20 11:31pm
Software/Databases
Master Callsign Database Editor allows to create and modify Super Check Partial database files used by many contesting programs in DTA and SCP formats. The files produced by Master Editor in DTA format can be used with CT, WriteLog, TRlog, SD, and others. The SCP versions of the produced files are for use with Win-Test, N1MM+, and others. Master Editor allows to create a callsign database from a separate log or from a set of logs in the Batch Import mode.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/23/20 11:09pm
Founded to create innovative Electronic products for the Ham Radio market.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/23/20 11:09pm
A selection of best amateur radio J-Pole Antenna Projects for 50 MHz. These projects are an excellent starting point to build your j-pole for the six meter band.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/23/20 11:09pm
Antennas/Antenna Calculators
Online calculator for J-Pole antennas. The J-pole antenna consists of a short and a long vertical pole with a feed point near the bottom. The antenna looks like the letter J, hence the name J-pole antenna.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/23/20 11:09pm
Shopping and Services/Regional/Canada
Amateur radio accessories, like the CT-17B ICOM CI-V hubs, IABs ICOM ACC1 Breakout boxes, GS232Dunio GS232A/B arduino based rotor controler, IMK memory keypad for ICOM Radios

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/22/20 11:40pm
Antennas/6M/6 meter J-Pole Antenna
This J-Pole is mounted on a fishing rod. The radiator L1 is an isolated copper-wire with a length of 281,5 cm while the quarter-wave matching sector L2 is made with 450-Ohm-Wireman-cable

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/22/20 11:40pm
Antennas/6M/6 meter J-Pole Antenna
Essentially, a J-pole is a 1/2 wave resonant antenna connected to a quarter wave matching stub. The feedline is connected at a point on the matching stub that is at the feedline's characteristic impedance. The result is 3/4 of a wavelength on one side and 1/4 wavelength on the other side.

[Author: author@dxzone.com]

[*] [+] [-] [x] [A+] [a-]  
[l] at 5/22/20 11:40pm
Antennas/6M/6 meter J-Pole Antenna
The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarized antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.

[Author: author@dxzone.com]

As of 7/2/20 7:05am. Last new 7/1/20 11:16pm.

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