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HF Propagation


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Friends News - The DXZone.com

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 1935  View ?

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

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(01/01/1970 @ 01:00)
WSJT-X version 2.1.2 released  View ?

The WSJT Development Group is pleased to announce the general availability (GA) release of WSJT-X Version 2.1.0.
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 1934  View ?

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

... / ...

(01/01/1970 @ 01:00)
CQ WW DX CW Contest 2019  View ?

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.
(01/01/1970 @ 01:00)
SunSDR2 DX  View ?

The Expert Electronics SunSDR2 DX is a compact HF 6m 2m VHF SDR Transceiver with a modern design
(01/01/1970 @ 01:00)
ICOM IC-R20  View ?

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)
NanoVNA  View ?

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.

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(01/01/1970 @ 01:00)
Behringer HA400 Headphone Amplifier and RFI  View ?

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.

... / ...

(01/01/1970 @ 01:00)
TO9W Saint Martin 2019  View ?

DX Resources/DX Peditions/2019 DXpeditions
4-13 December 2019 DX Pedition to Saint Martin focused on low bands
(01/01/1970 @ 01:00)
NanoVNA Saver  View ?

Software/Antenna analysis
This software connects to a NanoVNA and extracts the data for display on a computer, and for saving to Touchstone files.
(01/01/1970 @ 01:00)
V6K Kosrae Island  View ?

DX Resources/DX Peditions/2019 DXpeditions
JA1XGI will be active 2-9 December 2019 as V6K mainly HF Bands
(01/01/1970 @ 01:00)
A Moxon Antenna for Satellites  View ?

How to make a dual-band VHF/UHF handheld Moxon Antenna to work satellites
(01/01/1970 @ 01:00)
Moxon Antenna for 7 MHz  View ?

Homemade moxon antenna for the 40 meter band. This article is not very descriptive but includes some very detailed images
(01/01/1970 @ 01:00)
Top Band Receive Loop Antenna  View ?

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
(01/01/1970 @ 01:00)
The Micro20 III Pocket Size SSB RTX for 20m  View ?

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

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(01/01/1970 @ 01:00)
Homebrew a High Performance SSB RTX for 14 MHz  View ?

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.

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(01/01/1970 @ 01:00)

Last import : 06/12/2019 @ 16:45

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