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  • PSK31

    PSK31 is a digital mode was designed by Peter G3PLX  based on the RTTY mode of operation. PSK31 is useful for live keyboard to keyboard QSO that works at 31.25 bauds, that uses varicode character coding what gives 50wpm. Easy to use and monitor, that give very good copy and is thus suitable for QRP. The software is available for free for many platforms, with SoundBlaster type Soundcard, and uses advanced DSP and narrow band (31 Hz!!) techniques.

  • SSTV

    Slow-scan television (SSTV) is a picture transmission method used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color. A technical term for SSTV is narrowband television. SSTV usually takes up to only 3 kHz of bandwidth. It is a much slower Method of still picture transmission, usually lasting from about eight seconds to a couple of minutes.   

  • APRS

    APRS is not a vehicle tracking system. It is a two-way tactical real-time digital communications system between all assets in a network sharing information about everything going on in the local area. On ham radio, this means if something is happening now, or there is information that could be valuable to you, then it should show up on your APRS radio in your mobile. APRS also supports global callsign-to-callsign messaging, bulletins, objects email and Voice because every local area is seen by the Internet System (APRS-IS)! APRS should enable local and global amateur radio operator contact at anytime-anywhere and using any device.

  • Weather Spotting

Why I become a weather spotter.


The weather has always interested me . I use to chase storms in Madison County as a firefighter with Central Townships Fire Department. Then I became a amateur (ham) radio operator. While being a ham radio operator I learned more about the weather by being a spotter as part of the Central Ohio Severe Weather Net on the frequency of 146.760 MHz. This net is where area hams report local weather information to the National Weather Service.


After many years of work in the public service, I started to miss this after I became disabled in 2005.  I purchased and installed a professional weather station in my home in London. Then in 2006, I started sending weather reports to the local news station and several online weather sites. I felt that this would be a great service to my community.


My weather station equipment consist of an Oregon Scientific WMR-968 wireless  weather station, mounted up on a pole in the backyard. The console for the weather station is mounted in my ham shack and connected to the computer. The computer is running a program called Weather Display. This program will upload the weather data from my station to my website, other online weather services, email, or text message. 


Weather Display will  also creates  a couple special files for me, the first is the WXNOW file. This provides a local weather reports via the amateur radio Automatic Packet Reporting System (APRS) network.  The second file is a custom weather report that is created by the use of special <tags> to output  the weather data that I requested at a set time interval. This file is then loaded into a program called Digital Master 780 (DM780) via a macro command in DM780. This allows me to send out a custom weather report to other ham radio operators that I talk with of several digital modes, including PSK31.


 I am often referred to as “Mark from London” as a weather spotter on WSYX 6 and Fox 28 news. So if you are interested in receiving the weather reports from my weather station. I have the ability to send emails or text messages to anyone with weather reports from my station in London. If you would like to be added to the list to receive these weather reports please email me at Mark@n8mni.com



This page was last updated on  19 Sep 2011