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Computer science...

on February 07, 2014

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Computer science is no more about computers than astronomy is about telescopes. -- Edsger Dijkstra

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WSJT-X Automatic Logging Into Ham Radio Deluxe

Ham Radio Deluxe DM780 supports a pretty good selection of digital modes. There are several popular digital modes that HRD DM780 does not support including FT8, JT65, and WSPR. To run these digital modes, additional non-HRD software is required. I have found WSJT-X easy to work with especially when combined with JTAlert. WSJT-X implements communication protocols or "modes" called FT4, FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions. However, by default WSJT-X writes only to its own log when only basic configuration is setup. This is inconvenient to Ham Radio Deluxe users as there doesn't seem to be an easy way to export/import the WSJT-X log into Ham Radio Deluxe. Even if there were a manual export/import, who would want a two-step logging process anyway? Sp

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I have been migrating my applications and data to a new computer. My old computer served me well for many years and has been exhibiting a growing number of issues indicating it was time to be retired. The next step in the transition process was to migrate Ham Radio Deluxe (version 5.24.0.38) to the new computer running the latest version of Ham Radio Deluxe (version 6.7.0.301). I am very excited about this upgrade to HRD as I am looking forward to running a well supported high-quality application and discovering new features and enhancements. HRD has been the rug that really tied the shack together. This will also be the first version of HRD that I have had to pay for as I have always relied on the free version. My strategy was to migrate my HRD log using a backup as well as custom DM780 macros and then manually configure the application. I chose this strategy since it was straightforward and would assure a clean migration. This strategy would also afford me the opportunity to rev

Quick Guide To Common Multimeter Symbols and Abbreviations

Ever wonder what all the symbols and abbreviations mean on your multimeter? Here is NJ2X's handy quick reference guide to help you decode some of the more common symbols and abbreviations appearing on multimeters. Capacitor Diode AC Alternating current or voltage ~ Alternating current or voltage •))) Audible Continuity DC Direct current or voltage ⎓ Direct current or voltage V Volts mV Millivolts (1 x 10 - 3 volts) A Ampere (amps). Current ⏛ Fuse ⏚ Ground mA Milliampere (1 x 10 -3 amps) uA Microampere (1 x 10 -6 amps) nS Nanosiemens (1 x 10 -9 siemens). Conductance (1/W) Ω Ohms. Resistance kΩ Kilohm (1 x 10 3 ohms). Resistance MΩ Megohm (1 x 10 6 ohms). Resistance Hz Hertz (1 cycle/sec). Frequency kHz Kilohertz (1 x 10 3 cycles/sec). Frequency mF Microfarads (1 x 10 -6 Farads). Capacitance nF Nanofarads (1 x 10 -9 Farads). Capacitance - Negative + Positive Good DX and 73, NJ2X Other related articles on NJ2X.COM : Using

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