Swisslog for Windows, by Walter Baur HB9BJS (public domain software)
Swisslog is the logbook program I use for everyday logging - it's the most complete logging program I have ever seen. Now in it's 5th edition, it interfaces with most radios, keeps track of award standings, and allows the creation of any kind of report based on your data - including the printing of QSL cards - limited only by the user's imagination! It has integrated support for MixW, Hamscope, TrueTTY, CWGet and CWType. It can receive DX Cluster spots from any telnet DX cluster you desire, and tune the radio to the spot's frequency and set the mode. It even has a built-in propagation prediction feature! One of the newest additions to Swisslog is full support for the ARRL's Logbook of The World. A full working demo is available for download. If you can't do it with Swisslog then you can't do it at all!
DX-Telnet, by Fabrizio Sartoni IK4VYX
DXTelnet is a Windows based, DX oriented, telnet application. Unlike the traditional telnet applications, DXTelnet was designed to fit the DXer needs and to fix most of the well known problems affecting the other traditional telnet applications and performs a rational information displaying, multiconnection, dummy activity simulation to fight idle disconnection timeouts and many, many other original and useful features. If you use an Internet connection to receive spots from a DXCluster, probably this is the program you've always been looking for. DXTelnet includes 3 programs in one: DXTelnet for Telnet connections, DX-TNC for packet radio connections and DX-Plorer for connections to OH2BUA's web cluster. These 3 programs can be run together to get DX-Spots from different sources; all the spots from all the sources will be displayed in each DX Window, without duplications. A full working demo is available for download.
MMTTY, by Makoto Mori JE3HHT (freeware)
Ever since the PC made its introduction in the ham radio shack digital communication modes have become increasingly popular. Now that every PC has a good sound card those digital modes are more and more performed only by software, and no longer by the huge, expensive external boxes of "the old days". One of those digital modes that has always been very popular is RTTY (Radio TeleTYpe) and this program uses the computer's sound card to decode and transmit just that. RTTY remains the favorite of contesters and DXers alike. RTTY does not use error correction, handshaking, or synchronizing, all of which slow things down. When quick back-and-forth exchanges are important, RTTY is the mode of choice. MMTTY has a very large and loyal group of users, that will provide help and assistance to whomever needs it. Click here to see how I modified a Rigblaster Nomic for FSK!
EQCalc by Lo Wang
(I no longer use this program because I don't have the TS-570 anymore; but I keep this information for those who might find it useful.)
If you have a TS-570 (G version) then you have probably wondered how to make the "U" filter settings work. Those settings are user-definable, but not many people seem to know how to do it; in fact I only found out in December of 2002... Your search is over - all you need is EQCalc! This small program allows you to define your own filter shape (both RX and TX) and then program that filter in the "U" setting. And you can change the filter as many times as you like! All you need is a serial cable from your PC to your radio and this program. The software is located on the website of the designer of the TS-570, and there are some more interesting programs and even performance modifications. (downloads directly from my site)