FlexRadio Signature FLEX-6000 Series User Manual

FLEX-6000 Signature Series – Maestro User Guide
Copyright 2024 FlexRadio, Inc. All Rights Reserved. | Page 138
31.2 RTTY MODE
RTTY mode is a variant of DIGL mode, optimized to facilitate tuning and reporting of an RTTY Mark
frequency via CAT or the FlexLib API. In RTTY mode two controls appear in the Slice Receiver
Menu. These are the RTTY Mark and RTTY Shift values:
These values default to 2125 and 170 Hz respectively for operating at 45.5 baud, the standard for
HF RTTY. The RTTY Mark is an IF shift of the Slice Receiver indicated frequency which allows knob
tuning and spot frequency reporting to third-party programs that expect the reported frequency to
be the RTTY Mark frequency. For knob tuning, move the frequency centerline (the higher
frequency yellow line) on the Mark frequency (higher of the two tones). RTTY mode can also be
tuned by double tapping on the Panadapter display at the desired Mark frequency. To the user, the
IF shift at the RTTY Mark frequency is transparent since the Slice seems to be tuned to the RTTY
Mark. The Slice Receiver filter is also IF-shifted and the default filter presets are centered between
the RTTY Mark and Space frequencies.

FlexRadio Signature FLEX-6000 Series Specifications

General

Brand	FlexRadio
Model	Signature FLEX-6000 Series
Category	Transceiver
Language	English