As a follow up to DIGU or USB for use with FT8 I have found that while DIGU is great for RTTY opera

N4AB

As a follow up to  DIGU or USB modes for use with FT8, I have found that while DIGU is great for RTTY operation its use on FT8 is OK but does have a built in limitation. While allowing me to set DIGU up to view (and have WSJT-X decode) 7.074 to 7.078 MHz using a stretched 3 KHz Filter (out to 4 KHZ) It will only transmit out to 7.077 MHz leaving the top 1 KHz as just a receiver. Using USB (with a 4 KHz filter) I can view and transmit anywhere in the band (7.074/7.078 or any other band that has 4 KHz of room).
I know that JT65 and JT9 or some other digital modes have been unofficially assigned to some of those frequencies. But from my observations the upper 1 KHz of 40 and 20 meters is little used since the FT8 mode was introduced while the lower 2.5 KHz is totally packed. I even saw some activity below 100 Hz a few days ago.
Their is bound to be Pro and Cons about this but I don't see a major problem with using the entire 4 KHz on the 40/20 meter band or using USB mode with an appropriate configured Profile (no audio processing applied).
Al, N4AB  

Jay Nation

DH2ID

N4AB

OK Jay and thank you. I forgot that I had set my transmit bandwidth to 100 to 2900 Hz. Sometimes a quick rap on the head will help ****. The appropriate profile for FT8 should include the bandwidth as it should for all the modes.

Jay Nation