 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 2114 
Hairpin antenna for 40m band, AGWQSLPrint, Improving Gain of the Super J-Pole Antenna, FreePCB, Linear Loaded 40m Dipole, Coaxial Collinear Antenna for 70 CM Band, 40m loaded dipole, VSP Manager,
(01/01/1970 : 01:00)
NanoVNA-H4 Vector Network Analyzer
NanoVNA-H4 Vector Network Analyzer - 10KHz-1.5GHz HF VHF UHF Antenna Analyzer with 4-inch LCD touchscreen,portable with 1950mAh battery
(01/01/1970 : 01:00)
Top Amateur Radio Websites - Issue 2113
High Performance common-mode chokes, A Practical, 5-Band Homebrew Wire Beam , Morse Code Course by UBA, What is a HAM Mesh Network, Online dBm to watts conversion, Free Virtual Serial Port, mW to dBm Calculator,
(01/01/1970 : 01:00)
Top Amateur Radio Websites - Issue 2112
160m Band Loaded Inverted L Antenna, How to evaluate Choke performance, Two elements Triband Yagi Antenna, HW VSP3 - Virtual Serial Port, Ham Goodies, Virtual COM
(01/01/1970 : 01:00)
(01/01/1970 : 01:00)
ICOM IC-R20
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)
(01/01/1970 : 01:00)
Real-time ionogram
Propagation/MUF IndicatorsThis page displays the current ionogram and tries to determine the nearest digisonde report to your location. Data coming from this sondes are used to determine the MUF for oblique propagation on HF spectrum ... / ... 
Real-time ionogram
Propagation/MUF IndicatorsThis page displays the current ionogram and tries to determine the nearest digisonde report to your location. Data coming from this sondes are used to determine the MUF for oblique propagation on HF spectrum 
(01/01/1970 : 01:00)
(01/01/1970 : 01:00)
HF communication prediction tools
Propagation/Propagation ForecastOnline HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to predict usable frequency rage for radiocommunications between two stations allowing to specify frequency and date range. This tool allow calculation with different methods and algorithms ... / ...
HF communication prediction tools
Propagation/Propagation ForecastOnline HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to predict usable frequency rage for radiocommunications between two stations allowing to specify frequency and date range. This tool allow calculation with different methods and algorithms
(01/01/1970 : 01:00)
(01/01/1970 : 01:00)
Calculation of the Maximum Usable Frequency
Propagation/MUF IndicatorsThis paper presents the method of calculating the maximum usable frequency (MUF) and field strength of radio waves reflecting 2 times at the F2 ionosphere layer under inhomogeneous conditions of the ionosphere. The comparison between predicted and measured MUF has shown that the proposed method significantly increases the accuracy of calculation MUF. ... / ...
Calculation of the Maximum Usable Frequency
Propagation/MUF IndicatorsThis paper presents the method of calculating the maximum usable frequency (MUF) and field strength of radio waves reflecting 2 times at the F2 ionosphere layer under inhomogeneous conditions of the ionosphere. The comparison between predicted and measured MUF has shown that the proposed method significantly increases the accuracy of calculation MUF.
(01/01/1970 : 01:00)
Build your own Windom Antenna
Antennas/WindomBuilding a Windom HF Antenna. A PDF file presentation about homebrewing a windom antenna for the HF bands with formulas for 40 and 80 meters bands and step by step guide on making a 4:1 balun to feed the antenna.
(01/01/1970 : 01:00)
(01/01/1970 : 01:00)
(01/01/1970 : 01:00)
(01/01/1970 : 01:00)
Dernière mise à jour : 18/04/2021 : 11:31 | 
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