RTTY Station Setup for Yaesu FTDX10 and N1MM Logger
Configuring the Yaesu FTDX10 and N1MM Logger for RTTY contesting
Description
Setting up a digital mode station for Radioteletype (RTTY) contesting requires careful integration of transceiver and logging software. This guide outlines the specific configuration for a Yaesu FTDX10 and N1MM Logger, focusing on settings relevant for the 2025 CQ WW RTTY contest. It covers digital mode setup within N1MM, mode control, and RTTY-specific parameters, including the use of the FTDX10's DATA-L or RTTY-L modes.
Operational guidance includes leveraging the 300Hz CW roofing filter for enhanced adjacent signal rejection and proper MMTTY window resizing to ensure accurate FFT and XYScope displays. The author notes a consistent received signal offset of -1.5 kHz from the VFO frequency during operation. Specific software versions used are N1MM V1.0.10936.0, MMTTY 1.70, and various FTDX10 firmware versions.
The document also mentions an unsuccessful attempt to integrate a WinKeyer USB (WKSMT, firmware 31.03) for FSK waveform generation, where N1MM could key the radio and 100W was measured, but no tones were observed on the FTDX10's scope displays.