One of the recent developments in soundcard digital texting frequency groupings we have seen over the past 5 years or so, is in the 20 meter band, where several "passband" sections of it are popular for weak signal, QRP, or very narrow signals. This evolved in the space between the common PSK and RTTY segments. Stations in the "PSK-RTTY Sandwich" are commonly having QSOs with new super-weak modes at such low signal levels, that they are easy to overlook simply listening by ear...
VFO (Passband) 14070.0 USB (14070.3-14072.5) PSK31 14072.5 USB (14072.8-14075.0) MFSK, OLIVIA, PSK63, New modes 14075.0 USB (14075.3-14077.5) Olivia, New modes, weak sig 14076.0 USB (14076.3-14078.5) JT65, super-weak sig Above = RTTY (14078.5-14090) RTTY 73 Bonnie VR2/KQ6XA
