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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

Top Amateur Radio Websites - Issue 2135  Kijk naar?

Trapped vertical Antenna, Simple 2.4 GHz SWR Meter, AN-SOF - Professional Antenna Simulation, Beverage Receive Antenna, QRP Ham Radio Kits, Spectrum Analyser I1KFH, VA3RJ DX Calendar
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2134  Kijk naar?

Magnetic Loop Antenna for 2 meters, PA0RDT MiniWhip, J-Pole antenna for UHF Bands, 432 MHz 100W RF Power Amplifier, EME user guide by IK1UWL, An 8x2 Element Array Antenna For 144 MHz, F6GCI propagation
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2133  Kijk naar?

USB Rig Interface, Dedicated 80m Vertical, Watching Propagation with FT8 Spots, OK1RD Beverage Antennas, Automatic Position Reporting System for HF, Repair or Replace Electrolytic Capacitors , Beverage switch-box,
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2132  Kijk naar?

A Simple Spectrum Analyser, The G4AON SSB Transmitter, Transformers for low-bands antennas, Speech synthesiser for FT-817, Building a VHF Contest Station, N-Type Connector on Cellflex Cable, Operating AMTOR
(01/01/1970 @ 01:00)
Top Amateur Radio Websites - Issue 2131  Kijk naar?

Slot-Cube Antenna for 6 Meters, Midway Electronics, Audio CW Filter , Hermes-Lite SDR Project, 600W LDMOS Power Amplifier, Alinco DR-605 Microphone Cable Repair, Interfacing Yaesu DR-1X Repeater
(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)
SimpleSat Rotor Controller  Kijk naar?

Software/Antenna rotor control
his controller uses the Yaesu GS-232 command set to control a Yaesu G-5500 Az-El rotor. The controller was designed to be compatible with the SatPC32 tracking program and should work with any tracking program that supports the Yaesu GS-232 format. This controller has been tested with the Arduino UNO and the Arduino Mega2560.

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

(01/01/1970 @ 01:00)
Cigarette Pack for 20 meters Revised  Kijk naar?

Technical Reference/QRP Projects
Revision of the Cigarette Pack 14MHz SSB QRP Micro-Transceiver
(01/01/1970 @ 01:00)
DDUtil for Flex Radio  Kijk naar?

Software/Radio Control
Data Decoder Utility is designed to enhance the operating experience for Flex Radio users by providing advanced connectivity to Peripheral equipment and radio control programs (RCPs) otherwise not available.

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

(01/01/1970 @ 01:00)
HF SIGNALS  Kijk naar?

Manufacturers/QRP Kits
The Home of BITX transceivers. Founded to encourage people all over the world to become more active in amateur radio, analog electronics and self-learning. Building and modifying radios is a great education.

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

(01/01/1970 @ 01:00)
The KA7OEI FT-817 Battery Types  Kijk naar?

Radio Equipment/HF Transceivers/Yaesu FT-817
Operating the FT-817 from various types of batteries, such as Alkaline Cells, NiCd or NiMH rechargeable batteries. An useful article that compares usage of different types of batteries for the Yaesu FT-817

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

(01/01/1970 @ 01:00)
Experiments with 160m antennas  Kijk naar?

Experimentin wire antennas on top band using several type of aerials. This includes a 40 to 160 meters EndFed Half Wave kite antennas and 160m/80m loaded vertical antenna.
(01/01/1970 @ 01:00)
How to Tune Dipole Antennas  Kijk naar?

This is a standard calculation method that can help you while tuning dipole antennas, by adjusting wire lengths. This method can be used also when you need to add lenght to your wires, and can be additionally used to quarter waves vertical antennas

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

(01/01/1970 @ 01:00)
FCC Callsign Database Script  Kijk naar?

Software/Developer Resources
This is a Bourne Shell script that will automagically download the FCC Amateur Radio license database, parse it, and populate a MySQL database. The database can be searched using the command line and is very fast.

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

(01/01/1970 @ 01:00)
Lightweight 6 Meter Moxon  Kijk naar?

Antennas/6M/6 meter Moxon Antennas
This article is about a homebrew 6 meter lightweight Moxon antenna. Article includes a full part list, instruction to assemble the parts and pictures.
(01/01/1970 @ 01:00)
The FT-817 Calibration Menu  Kijk naar?

Radio Equipment/HF Transceivers/Yaesu FT-817
One of the interesting features of the FT-817 is that many of the conventional calibration settings that would have, in the past, been done using manual adjustments of coils, capacitors, and potentiometers, are done via software.

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

(01/01/1970 @ 01:00)

Laatst import : 15/09/2021 @ 20:56

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