If your radio has one receiver, this will probably use the left channel of the sound card with dual receivers, the second receiver may use the right channel. The ideal connection would be from a fixed-level (“line out”) output on the radio to a “line in” input on the sound card. These depend on the radio, the sound card and the interface (if any) in use, and it is impossible to cover all of the possibilities in detail, but the following general comments apply:įirst, you must have some means of connecting the radio’s audio output to the sound card’s input. RTTY is particularly complex for someone coming to it for the first time there is an excellent introduction to RTTY on AA5AU’s web pages that is recommended reading for anyone starting out in RTTY.Ī few notes about hardware connections for sound card digital modes (using MMTTY, 2Tone, MMVARI, Fldigi or WSJT-X/JTDX) follow. If you are new to digital modes, you can find more information on RTTY and PSK in the General RTTY and PSK Information page in the manual. If you are familiar with digital modes and are moving to the Logger from some other program, you might want to proceed directly to the setup instructions in the sub-sections below. The digital engines (MMVARI, MMTTY, 2Tone, Fldigi, WSJT-X and JTDX) also have their own configuration menus that need to be set up. N1MM Logger+ can also use either of the WSJT-X and JTDX programs to make and log contacts in FT8 and other modes supported by these programs.Ĭonfiguring a digital engine is done within N1MM Logger+ in a few places, including the Configurer ( Config >Configure Mode Control, Audio, Other) as well as in the Digital Interface window. MMTTY and 2Tone can only be used for RTTY, whereas Fldigi supports a wide range of digital modes, most of which are not used for contesting. The Logger also supports several other digital engines, including MMTTY, 2Tone, Fldigi, WSJT-X or JTDX, but these engines are not pre-installed they must be downloaded and installed separately. MMVARI can do RTTY, PSK31, PSK63, and a few other digital modes that are not often used in contests. One digital engine, MMVARI, is pre-loaded when N1MM Logger+ is first installed. The Logger uses the sound card for digital modes via a separate process called the “digital engine”. ![]() Terminal units and TNCs are relatively rare nowadays, and most digital communications now use a computer sound card. In order to communicate in digital modes (RTTY, PSK, or other sound card digital modes), N1MM Logger+ can either use a computer sound card or an external device called a “terminal unit” or a multi-mode TNC.
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