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Nouvelles des Amis - DxZone

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 Did Guglielmo Marconi Demonstrate the Radio Communications  Voir?

Guglielmo Marconi was the first to demonstrate how it was possible to transmit a signal over long distances, without wires. A reconstruction of his public events from 1895 till 1901.
(27/04/2018 : 00:00)
Top Amateur Radio Websites - Issue 1804  Voir?

J-Pole Antenna Plan and Calculator, Radioberry by PA3GSB, HamRacer - the unique synthesized voice keyer, ICOM IC-7610 Leaflet , Dual Band VHF UHF Yagi Antenna projects, RX Flag Antenna FO0AAA 160-10 meters, Capacity testing our batteries - How to, Ham Radio Deluxe and ICOM IC-7610 ICOM IC-7610 Manual,

... / ... Lire la suite

(27/04/2018 : 00:00)
5 Best DIY Fan Dipole Antenna Projects  Voir?

Five best homebrew fan dipole antenna projects easy to build. The fan dipole antenna is a simple wire antenna consisting of multible monoband dipoles sharing a single coax feed line.
(27/04/2018 : 00:00)
CQ WW WPX Contest 2018  Voir?

2018 CQ World-Wide WPX Contest SSB: March 24-25, 2018 CW: May 26-27, 2018 Starts: 0000 UTC Saturday Ends: 2359 UTC Sunday
(27/04/2018 : 00:00)
https://www.dxzone.com/top-amateur-radio-websites-issue-1803

DIY CobWebb Antenna, MSHV, Duo band antenna for 80 and 20 m, Elevation Angles, 6O6O Somalia, JTDX
(27/04/2018 : 00:00)
ICOM IC-R20  Voir?

IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.
(27/04/2018 : 00:00)
Making a good balun  Voir?

Antennas/Baluns
The normal way to make a good balun is to wind a core with a bifilar winding about 8-10 turns, and then connect the coax to one side and the antenna to the other.
(27/04/2018 : 00:00)
Active Antenna Amplifier  Voir?

Manufacturers/Antennas/HF/Active antennas
Manufacturer of amplifier for small magnetic and electric receiving wideband antennas, and variable delay line kit for active antenna phased arrays
(27/04/2018 : 00:00)
DMR For Dummies  Voir?

Operating Modes/DMR
A beginners guide to DMR. This web site cover all aspects of DMR and is a valuable resource for those who want to get started with DMR.
(27/04/2018 : 00:00)
Inverted L- Antenna for the TOP Band  Voir?

Antennas/160M
An schema drawing and formula to calculate size of an Inverted L antenna for the 160 meters band, 1.84 MHz.
(27/04/2018 : 00:00)
Portable HF Antenna for the field day  Voir?

Antennas/Portable
This article describes a project of asymmetrical hatted vertical dipole, a portable antenna that can be used for field day operations, sota, campings or even for fixed installations. This is a freestanding 20-10m antenna that is really easy to build, easy to tune and relatively easy to carry.

... / ... Lire la suite

(27/04/2018 : 00:00)
Oil Filled, Power Measuring Dummy Load  Voir?

Technical Reference/Dummy Loads
This project will demonstrate how to build a dummy load, and measure power correctly, you can also calibrate your meters for accuracy with this project
(27/04/2018 : 00:00)
Receiver protection: a game-changer  Voir?

Technical Reference/Receiver Front-End Protector
Receiver protection is a pretty important issue in radio transceivers since each receiver front-end is built to amplify a very small signals, and therfore needs to be properly protected from RF coming from close transmitters.

... / ... Lire la suite

(27/04/2018 : 00:00)
RF Front End Protector  Voir?

Technical Reference/Receiver Front-End Protector
If You are using a separate receive antennas then you need a good protection circuit to eliminate the possibility of blowing out the receiver front-end while using these auxiliary receive antennas specially on low bands.

... / ... Lire la suite

(27/04/2018 : 00:00)
Elecraft K3 fans noise  Voir?

Radio Equipment/HF Transceivers/Elecraft K3
Replacing fan to the Elecraft K3 and solving temperature issues after replacement, by changing fans with other compatible ones.
(27/04/2018 : 00:00)
Receiver Front End Protection  Voir?

Technical Reference/Receiver Front-End Protector
A simple receiver front end protection ciruit idea to protect your receiver when it is not in use
(27/04/2018 : 00:00)

Dernière mise à jour : 25/04/2018 : 12:08

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