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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


Top Amateur Radio links of the week Issue 1725  Voir?

ICOM IC-7300 Review, 2N2/20 CW Transceiver, Tuning with he AL 811H Amplifier, 2N2/30 30m QRP Trasceiver, Tuning with TL-922 Amplifier, Precision VXO, Return Loss Bridge, Yaesu FT-450D Review, 2N2/6 40 to 6 m Transverter, ICOM IC-756 PRO II Review
(21/07/2017 : 00:00)
Top Amateur Radio links of the week Issue 1724  Voir?

YBN 28-5w - 5 Elements Yagi for 28 MHz, Arduino Antenna Rotator Controller , The Condor Connection, CBS - contest statistical software, Charlie Tango DX Group , Microwave 101, All Asian DX Contest , UR5KBW Mykhaylo, H40GC
(21/07/2017 : 00:00)
IARU HF Championship 2017  Voir?

IARU HF championship - Amateur Radio Contest
(21/07/2017 : 00:00)
Top Amateur Radio links of the week Issue 1723  Voir?

CSV19 Antenna Launcher project, Bluetooth and VOX Project, Introduction to RF & Wireless Communications Systems, ICOM IC-746PRO Frequency Calibration, QSO Relay, ICOM IC-756Pro Receiver Noise, FTRestore
(21/07/2017 : 00:00)
Top Amateur Radio links of the week Issue 1722  Voir?

Batteries For Portable Ham Radio Use, How to build NVIS antenna, Custom QSL Cartoons, Building a 100 Watt 2M Linear Amplifier, VHF FM Power Amplifier, 160m 20w AM transmitter , Icom IC-7700 Power Amplifier Module, Alpha Antenna, IC-7700 as a bench spectrum analyser, Kenwood TM-D710 Memory Database,
(21/07/2017 : 00:00)
Spiral Antennas Links  Voir?

Spiral antennas belong to the class of frequency independent antennas. Spiral antennas offer a very large bandwidth and are used mainly in UHF and VHF bands.
(21/07/2017 : 00:00)
RV Ham Radio & Camping  Voir?

Ham Radio operators enjoing RVing caravaning and camping
(21/07/2017 : 00:00)
WSJT-X  Voir?

Software/Weak Signal
WSJT-X if a software that offers specific digital protocols optimized for EME, meteor scatter, and ionospheric scatter, at VHF/UHF, as well as for LF, MF, and HF propagation. The program can decode fraction-of-a-second signals reflected from ionized meteor trails and steady signals more than 10 dB below the audible threshold. Popular modes includes FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR

... / ... Lire la suite

(21/07/2017 : 00:00)
Yaesu Mark V FT 1000 MP  Voir?

Radio Equipment/HF Transceivers/Yaesu FT-1000MP
A page dedicated to Yaesu Mark V/FT-1000MP transceiver squarely aimed at the high performance contest and DX crowd.
(21/07/2017 : 00:00)
Adventure Radio Society  Voir?

Operating Modes/QRP/Clubs
Sponsor of the Spartan Sprints are two-hour gatherings held the first Monday of every month.
(21/07/2017 : 00:00)
Shortened EFHW Antenna 80-10m  Voir?

Antennas/End-Fed/End Fed Half Wave Antenna
A shortened multiband antenna, about 23m long, for 80m - 10m bands with a low SWR (<1.3) on 80m and 40m, and < 3 till 10m. Bandwith on 80m is 300kHz
(21/07/2017 : 00:00)
How Common Mode Chokes Work  Voir?

Antennas/Feed Lines/Choke
Examine the function and operation of a common mode choke and the way it reduces unwanted interference. Common Mode Choke vs. Single Choke
(21/07/2017 : 00:00)
Multiband trapped end fed antenna  Voir?

Antennas/End-Fed
A multiband trapped end-fed antenna can cover 20 30 40m bands. An option for portable sota operations were weight end simplicity are essential
(21/07/2017 : 00:00)
The WB0RIO 28 Mhz Arduino Beacon  Voir?

Technical Reference/Beacon keyers
This project involves the construction of a 5 Watt Morse code beacon transmitter that operates in the 28.200 to 28.300 section of the 10 Meter Amateur Radio band. The beacon controller uses an Arduino Uno microprocessor board to produce the three signals that control the transmitter.

... / ... Lire la suite

(21/07/2017 : 00:00)
Building and Using an Experimental Beverage  Voir?

Antennas/Beverage
An interesting article about planning and testing beverage antennas for 80 and 160 meters in a rural location
(21/07/2017 : 00:00)
Chocking the End-Fed Antenna  Voir?

Antennas/Feed Lines/Choke
Stop common-mode current when transmitting with an end-fed antenna. Unbalanced antennas are very prone to currents on the outside of the coax.
(21/07/2017 : 00:00)
Morse Code Beacon Keyer  Voir?

Technical Reference/Beacon keyers
This circuit stores a morse code message as bits in an EPROM chip, the message controls a relay that keys a CW morse code transmitter. An Arduino processor can also be used in place of this circuit, that eliminates the need to build the circuit and program an EPROM.

... / ... Lire la suite

(21/07/2017 : 00:00)

Dernière mise à jour : 18/07/2017 : 20:29

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