The DXZone.com Amateur Radio Internet Guide
Latest articles, reviews and links posted to The DXZone.com, an amateur radio, cb radio, scanning and shortwave radio, reference site
Top Amateur Radio Websites - Issue 1924 
A simplified guide to FT8 DXPedition mode, Caravan Ham Radio Shack, 80 meter Ceramic Resonator VXO CW Transmitter, Saluki Technology Inc., Introduction to NPR New Packet Radio - Presentation, NPR New Packet Radio - IP over 430 MHz, New Paket Radio: Hamnet over 70cm by EA4GPZ, S9A Log Online
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 1923
Meteo Beacon in VHF with a Raspberry pi, Designing VHF/UHF Quad Antenna, FT8 Operating Guide - Weak signal HF DXing, PT40 7 MHz Transceiver by AA3SJ, RFzero, HamFM Classifieds, E31A Log Online,
(01/01/1970 @ 01:00)
OMEGA+ Portable Radio
OMEGA+ radio is a compact and portable HF , 4m + 6m amateur radio Transceiver for QRP, Portable, SOTA operations.
(01/01/1970 @ 01:00)
IARU HF Championship 2019
IARU HF CONTEST - The second full weekend of July, beginning 1200 UTC Saturday and ending 1159 UTC Sunday (July 13-14, 2019).
(01/01/1970 @ 01:00)
ICOM IC-R20
IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.
(01/01/1970 @ 01:00)
SP QRO Association
Ham Radio/Clubs/EuropeThe purpose of our association is m.in. Conducting technical activities in the field of professional sports and the initiation, support and assistance of educational, technical and sports projects for the benefit of citizens of the Republic of Poland.
... / ... 
SP QRO Association
Ham Radio/Clubs/EuropeThe purpose of our association is m.in. Conducting technical activities in the field of professional sports and the initiation, support and assistance of educational, technical and sports projects for the benefit of citizens of the Republic of Poland.
(01/01/1970 @ 01:00)
mini Ring-Core-Calculator - Calculate windings on ferrite cores
Software/Circuit DesignThe program can be used to calculate inductors (coils) and their number of turns on ferrite cores, ferrite shells and air coils. These can be used for baluns, Ununs, bandpass filters, low pass filters, resonant circuits, and more. The technical specifications of the cores are already integrated in the program.
Application is free and runs on Windows 32 bit versions only. To make it run on Windows 10 64 bit need to be unzipped in a single folder.
... / ...
mini Ring-Core-Calculator - Calculate windings on ferrite cores
Software/Circuit DesignThe program can be used to calculate inductors (coils) and their number of turns on ferrite cores, ferrite shells and air coils. These can be used for baluns, Ununs, bandpass filters, low pass filters, resonant circuits, and more. The technical specifications of the cores are already integrated in the program.
Application is free and runs on Windows 32 bit versions only. To make it run on Windows 10 64 bit need to be unzipped in a single folder.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Multi-band End-Fed Antenna
Antennas/End-FedAn excellent guide to homebrewing multi band end-fed antennas. The article, embed several drawings including diagrams and detailed pictures, illustrating the basic funcionality of end-fed antennas. The author gives some basic hints on how to build a half size antenna for 80 40 to 10 meters and a 6 meter to 40 meter configuration. It is also well described how to build the impedance transformer and the loading coils for lower bands.
... / ...
Multi-band End-Fed Antenna
Antennas/End-FedAn excellent guide to homebrewing multi band end-fed antennas. The article, embed several drawings including diagrams and detailed pictures, illustrating the basic funcionality of end-fed antennas. The author gives some basic hints on how to build a half size antenna for 80 40 to 10 meters and a 6 meter to 40 meter configuration. It is also well described how to build the impedance transformer and the loading coils for lower bands.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
The End-Fed Half-Wave Antenna - Presentation
Antennas/End-Fed/End Fed Half Wave AntennaA very well done presentation about End-Fed Half-Wave antennas. This PDF document contains a summary of experiences in how to build custom EFHW antennas. Includes an interesting comparison table of UnUn configurations with recommended toroids, Wire size, turns and capacitors. An useful recap on common errors in building homebrew EFHW Ununs completes the document.
... / ...
The End-Fed Half-Wave Antenna - Presentation
Antennas/End-Fed/End Fed Half Wave AntennaA very well done presentation about End-Fed Half-Wave antennas. This PDF document contains a summary of experiences in how to build custom EFHW antennas. Includes an interesting comparison table of UnUn configurations with recommended toroids, Wire size, turns and capacitors. An useful recap on common errors in building homebrew EFHW Ununs completes the document.
(01/01/1970 @ 01:00)
The Antenna Torque Calculator
Technical Reference/Antenna RotatorThis unique online tool helps Ham Radio operators to choose the right rotator for medium and large HF antenna systems. The algorithm implemented in this calculator is the result of 40 years of experience in the HF Antenna sector. Given the Wind Speed, the total antenna square area, and the boom length, it will return the calculated torque value.
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The Antenna Torque Calculator
Technical Reference/Antenna RotatorThis unique online tool helps Ham Radio operators to choose the right rotator for medium and large HF antenna systems. The algorithm implemented in this calculator is the result of 40 years of experience in the HF Antenna sector. Given the Wind Speed, the total antenna square area, and the boom length, it will return the calculated torque value.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Balcony Mounted Buddistick Antenna by KP4MD
Antennas/PortableThe antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
... / ...
Balcony Mounted Buddistick Antenna by KP4MD
Antennas/PortableThe antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
(01/01/1970 @ 01:00)
Laatst import : 23/07/2019 @ 23:07
Boven 
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