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HF Propagatie


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RSS lezer - 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

SP DX Contest 2020  Kijk naar?

SP International DX Contest, April 4, 2020 15:00 UTC to April 5, 2020 14:59 UTC
(01/01/1970 @ 01:00)
The Truth about the G5RV Antenna  Kijk naar?

The G5RV Antenna and two other improved alternatives to this basic design, the well known ZS6BKW antenna and the W0BTU variant
(01/01/1970 @ 01:00)
Yaesu FTM-300D  Kijk naar?

Yaesu FTM-300D new 144/430 MHz Dual Band C4FM Digital/Analog FM Mobile Transceiver GPS C4FM Dual RX WIRESX Node
(01/01/1970 @ 01:00)
CQ WW WPX SSB Contest 2020  Kijk naar?

The WPX Contest is based on an award offered by CQ Magazine for working all prefixes. Held on the last weekend of March (SSB), the contest draws thousands of entries from around the world.
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2007  Kijk naar?

Home Made Artificial Ground Tuner , ZR6KMD 20m Field Dipole, ZS6KMD 20-40m Multiband Dipole, 70cm Mini-Transverter Project, Measuring SWR at 1296 MHz, Car Power Adapter to Anderson PowerPole, TU5PCT Ivory Coast 2020,
(01/01/1970 @ 01:00)
ICOM IC-R20  Kijk naar?

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)
TYT MD-380 firmware modification  Kijk naar?

Radio Equipment/VHF-UHF Handhelds/TYT MD-380
How to use the hacked firmware on the MD-380. Tools for working with codeplugs and firmware of the Tytera MD380,
(01/01/1970 @ 01:00)
2E0RDJ - Amateur Radio & Weather Station  Kijk naar?

Ham Radio/Personal Pages/Europe
2E0RDj Amateur Radio Station in Beachley, Nr Chepstow. IO81QP. Projects, Radio & Weather.
(01/01/1970 @ 01:00)
Making a Quadri Filar Helix antenna  Kijk naar?

Antennas/Quadrifilar Helix
A homemade Quadri filar Helix Antenna project with detailed pictures that can inspire and guide you on building your onw QFH antenna sor 137 MHz.
(01/01/1970 @ 01:00)
VHF Baluns: Fact and Fancy  Kijk naar?

Our ideas about HF baluns have changed dramatically in recent years. The focus today is very much on suppressing unwanted common-mode RF currents, to reduce both the received noise levels and the risks of causing interference on transmit.

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(01/01/1970 @ 01:00)
137MHz Quadrifilar Antenna  Kijk naar?

Antennas/Quadrifilar Helix
This version of the 137MHz quadrifilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey Taming the QFH which appeared in the March 1997 RIG magazine. This article contains detailed 3D pictures and models and detailed pictures.

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(01/01/1970 @ 01:00)
NOAA Satellite Reception with QFH Antenna  Kijk naar?

Antennas/Quadrifilar Helix
How to receive NOAA weather satellite with a home made QFH Antenna. This project includes some easy and efficient notch filters to suppress noise from FM frequencies
(01/01/1970 @ 01:00)
Helical Antennas -Theory  Kijk naar?

Helical antenna or helix antenna is the antenna in which the conducting wire is wound in helical shape and connected to the ground plate with a feeder line. It is the simplest antenna, which provides circularly polarized waves.

... / ... Lees meer...

(01/01/1970 @ 01:00)
Taming the Quadrifilar Helical Antenna  Kijk naar?

Antennas/Quadrifilar Helix
The Quadrifilar Helical antenna provides circular polarization and complete hemispherical reception, which is precisely what is needed to receive the polar orbiting weather satellites, and as a 2 meter antenna it will receive horizontal, vertical and clockwise circular polarization.

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(01/01/1970 @ 01:00)
Online Morse Code Training  Kijk naar?

Software/Morse Code Training
Learn Morse Online in 40 lessons with this web based morse code learning program, based on the Koch method. Choose the lesson, adjust the wanted parameters, and start the transmission of a set of random characters based on chosen lesson. Recognize the code and verify it at the end of the lesson.

... / ... Lees meer...

(01/01/1970 @ 01:00)
Yaesu FT-857D Select Knob Wobbles - How to replace  Kijk naar?

Radio Equipment/HF Transceivers/Yaesu FT-857
A youtube video instructions on how to replace, the Select knob. Very often this know wobbles after some years of usage and in this video is well documented all passages needed to replace the knob.

... / ... Lees meer...

(01/01/1970 @ 01:00)

Laatst import : 06/04/2020 @ 12:50

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