N1MM LOGGER is a RTTY logging software.This connects to a HF radio by a USB cable that  Amateurs who use RTTY are indebted to Mori-san for the positive impact MMTTY ... for the MMTTY interface in programs like N1MM Logger
This is my layout on my desk top
All major and many minor HF Contests are supported
      Including General DX logging, DXpedition, DXSatellite and VHF DX, t
SSB, CW, and Digital Suppor
Multi-user support
Rover support for QSO parties and other contests whic support this.
VHF and up contesting.
      Transverter support (SHF bands supported up to 10, 24, 47, 76, 142 and 241 GHz).
Dxpedition mode (Stay in Run or S&P)
With an interfaced radio, you will find it useful to open a Bandmap window. Click Window, then select Bandmap, and the Bandmap corresponding to your entry window will be displayed.

In the example at left, I have filled the Bandmap with spots from a packet cluster, just to illustrate how spots are displayed. The stuff in the top bar is pretty self-explanatory. The SH/DX button, when mouse-clicked, sends that request to the cluster (which you don't know how to set up yet). The button labelled Wide toggles filters in your radio, though you may have to set it up first (the process is explained in the manual). In any case, clicking on it switches TO the filter mode shown. The button labelled CQ will QSY the radio to your last CQ frequency, if there is one on this band. The RIT, XIT and CW are clickable. Clicking on RIT will turn RIT on and the label will turn red; ditto for XIT. The number between RIT and XIT is the RIT/XIT offset. The CW indicates the radio's mode; you can click on it to change modes on the radio. The four buttons below those are user-programmable buttons, typically used to control radio functions such as filters, noise blanker settings, AGC settings and so on.
The Bandmap
You can download N1MM LOGGER here.
The Entry Window is your main starting place for everything you do with N1MM Logger+. The first row is a standard Windows-style menu, and we'll be using it in a minute. Take a moment and explore the various drop down menu choices, but don't change anything right now.

Below the menu is a set of entry textboxes. This row is where you log your contest QSOs. The left-most textbox is the Call-Sign textbox. You always enter the call-sign of the station you are working into this textbox.