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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 1807  View ?

HF Portable Ops Solar Powered, KD8CEC Amateur Radio Blog, Amateur Radio Weekly, Yagi Antenna for 23cm ATV reception, Probemaster, Foundations of Amateur Radio - Podcast - How to make a mains filter for EMC and noise reduction, How to straighten Microbore copper tube, TARPN Packet Radio Networking Home Page, Carry bag for KX3

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(01/01/1970 @ 01:00)
IARU HF Championship 2018  View ?

July 14-15, 2018 - Objective: To contact as many other amateurs, especially IARU member society HQ stations, around the world as possible using the 160, 80, 40, 20, 15 and 10 meter bands.
(01/01/1970 @ 01:00)
Yaesu FT-4XR / FT-4XE VHF/UHF HT  View ?

Yaesu FT-4X 5W VHF / UHF Handheld Transceiver at a very affordable price
(01/01/1970 @ 01:00)
(01/01/1970 @ 01:00)
INRAD Microphones  View ?

INRAD Desk Microphone System is an exciting line of great sounding microphone models. Each INRAD microphone has an attractive stage-style body and a unidirectional cardioid element with unique audio characteristics to accommodate every operator's voice, radio and preferences. INRAD micrpohones can be connected to most popular amateur radio transceivers, including ICOM, Yaesu, Kenwood, FlexRadio, Elecraft, Ten-Tec products.

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(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)
DIY magnetic loop antenna by Chamaeleon Antenna  View ?

Antennas/Magnetic Loop
A page describing how to setup a magnetic loop antenna with the DIY Magnetic Loop Starter Kit produced by Chamaeleon Antenna. Includes a video and a detailed instructions to setup.
(01/01/1970 @ 01:00)
Keyhole Radio for Google earth  View ?

Software/RF Coverage Mapping
The ultimate Keyhole Markup Language (KML) plugin for Google earth. Keyhole Radio is a unique and powerful RF planning interface, accessed by loading a Keyhole Markup Language (KML) overlay in Google earth.

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(01/01/1970 @ 01:00)
Tower Coverage.com  View ?

Software/RF Coverage Mapping
Quickly Create RF Propagation Maps for Anywhere in the World. System will allow you to create Tower Coverage Maps for any geographical area in the entire world. Maps are based on actual RF propagation, topography, and land cover data.

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(01/01/1970 @ 01:00)
IC-7100 and FLDIGI - How to configure  View ?

Radio Equipment/HF Transceivers/Icom IC-7100
How to configure the ICOM IC 7100 to correctly work with FLDIGI on Windows 7 64 Bit. How install USB drivers and how to properly set COM ports and how to configure CI-V

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(01/01/1970 @ 01:00)
Beacons for Windows 8  View ?

Software/Beacon Monitoring
The Beacons app for Windows 8 makes it easy to observe NCDXF beacons. No need anymore to be able to decode the beacon's identifier send in Morse-Code.
(01/01/1970 @ 01:00)
DIY Dual Band 144-440 MHz vertical antenna  View ?

Antennas/VHF UHF
A homemade VHF/UHF vertical antenna made essentially with RG58 coax cable, with a 9 turns choke balun to prevent the shield acting as a RF Radiator.
(01/01/1970 @ 01:00)
Repeater Temperature Monitor with Raspberry Pi  View ?

Technical Reference/Raspberry Pi
A simple and cheap solution to monitor temperature of your repeater implementing a Raspberry Pi device with a set of popular tools made in python a database and RRD tool
(01/01/1970 @ 01:00)
The Near Vertical Incident Skywave (NVIS) antenna  View ?

Introduction to NVIS antenna and NVIS propagation. A simple NVIS antenna can be constructed as shown in this article
(01/01/1970 @ 01:00)
Batteries for portable use  View ?

Technical Reference/Batteries
Batteries for portable radio operation are always an interesting subject for discussion. Review of some LiPo (Lithium-ion polymer ) batteries for amateur radio use.
(01/01/1970 @ 01:00)
Calculate Antenna Lenght in feet, inches and meters  View ?

Antennas/Antenna Calculators
Inches and meters Javascript Wavelength Calculator allow to input a frequency in MHz and calculate wavelenght in several units considering also fractions of wavelenght and the velocity factor. Includes an usefull inch to meter converter

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(01/01/1970 @ 01:00)

Last import : 18/08/2018 @ 15:43

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