Topband: WSPR and topband

[Jim Brown]

On 4/26/2023 8:30 AM, TreeN6TR wrote:
> I have recently purchased a WSPR transmitter that I will be putting on 160
> meters soon.  It will be running 200 mw (at least for now) and be connected
> to my TX antenna most of the time.

3-4 years ago, K1JT and his team introduced new modes intended to 
replace older ones. The new modes offer improved decoding to lower 
signal levels. FST4 was developed to replace JT9 on MF and LF bands, and 
quickly gained acceptance below 160M. FST4W uses the same encoding 
tweaked to replace WSPR.

The modes and their application are described in doc files and help 
files on the WSJT download site.
https://wsjt.sourceforge.io/FST4_Quick_Start.pdf

This is the comparable doc for the Q65 mode, designed for various 
scatter modes at VHF and above.
https://wsjt.sourceforge.io/Q65_Quick_Start.pdf

73, Jim K9YC