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HF Propagatie


   Bezoekers online


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

How To Get An Amateur Radio License  Kijk naar?

How to get your ham radio license, licence types, exams, study guides and requirements to pass amateur radio exams and get your licence.
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 1928  Kijk naar?

F5RDS remote antenna tuner, The Great Ham Radio Desk Project, Homemade Magnetic loops antennas by F5RDS, QRPparts, RADIG Hombrew Software Defined Radio Project, Ham radio shack desk project, Omega Radio, 3 element Yagi Antenna On-line Caluclator, Score Distributor - Ham Radio Contest Score Forwarder,

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

(01/01/1970 @ 01:00)
IC-7610 vs FTdx-101D Head to Head Review  Kijk naar?

Head to Heat comparison review - ICOM IC-7610 vs Yaesu FTdx-101D
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 1927  Kijk naar?

How to build a Coax Balun 1:4 and 1:1, An Automatic Antenna Tuner , HG7AN Antenna Analyzer, F5RDS remote station setup, Unun vs Balun - Configurations and differences, G0HWC New Ham Shack, World Wide Digi DX Contest
(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)
N8FQ sked page  Kijk naar?

DX Resources/Sked
A multi sked portal offering sked spots grouped by CFO CW Practice CW Academy Development Digital FISTS Down Under FISTS Scouting LoTW/eQSL MARS NAQCC NRR Other Images POTA Ragchew Satellite SKCC TBDXC VHF/UHF
(01/01/1970 @ 01:00)
CW QSO Trainer  Kijk naar?

Operating Modes/Morse code/Learning Morse Code
This online web application allows you to train the decoding of Morse code by copying random QSO sentences that can be looped or even mixed.
(01/01/1970 @ 01:00)
SDR Receiver using a Tube  Kijk naar?

Technical Reference/Receivers
The build was an experiment to see if a tube receiver could be stable enough to receive digital shortwave radio broadcasts. The tube acts as both an oscillator and mixer, so the receiver is a type of direct conversion receiver.

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

(01/01/1970 @ 01:00)
DL7AHW Spraycan EH Antennas  Kijk naar?

Hairspray-can EH Antennas for shortwave and online programs. Small magnetic (H) antennas (Loops) have a good efficiency for the upper bands (20/15/10 meter band) and also in contrast to E-antenna a defined radiation direction.
(01/01/1970 @ 01:00)
Amateur Radio - State of the Hobby - Survery  Kijk naar?

Ham Radio/Demographics
Annual poll for radio amateurs - the good, the bad, the ugly! This is an annual survey conducted among the online community, and it represents the status of amateur radio. The authors ask to hams several questions, from the most used operating modes, to the typical ham radio lifestyle habits.

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

(01/01/1970 @ 01:00)
The Cubical Quad is Beautiful  Kijk naar?

An interesting page about Quad antennas. Modelling QUAD antennas, comparing quad antennas to yagi antennas. Information on QUAD Antenna tuning and home brewing with help on calculating dimensions and tuning.
(01/01/1970 @ 01:00)
WA3TFS Projects, Circuit Boards and Kits for Amateur Radio  Kijk naar?

Shopping and Services/Kits and Components
Details on projects by WA3TFS published in QST magazine over the past few years. Includes an online shop with several ham radio kits, circuit boards, simple SDR transceivers

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

(01/01/1970 @ 01:00)
Quad Antenna On-line Calculator  Kijk naar?

Antennas/Antenna Calculators
Cubical Quad Antenna On-line Calculator helps on defining the size of each element and spreader. Simply give the resonating frequency and it will calculate size of each element.
(01/01/1970 @ 01:00)
miniVNA PRO Modifications  Kijk naar?

Technical Reference/Vector Network Analyzer
The mini Radio Solutions miniVNA PRO is the only affordable vector network analyser (VNA) I know of that offers remote wireless operation. This is very interesting because it allows to measure the input impedance of HF antennas installed at height without having to deal with coax cable lengths, baluns nor common mode suppression chokes. However, to render the miniVNA PRO truly field proof, it requires a number of significant modifications.

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

(01/01/1970 @ 01:00)
A Collins 75A-4 Restoration  Kijk naar?

Antique Radios/Repair and Restoration
This page details the restoration of an early production Collins 75A-4 Amateur Band Receiver that had previously been vandalized.
(01/01/1970 @ 01:00)

Laatst import : 19/09/2019 @ 18:28

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