This is the second and probably last firmware update for the SKY-SDR.
This is not a mandatory update. It primarily improves operation on DIGI Modes with a faster AGC and by offering the choice of 4 filter bandwidths
More details are given at the bottom of this page.
New SKY-SDR DIGI mode Filters with V.1.03
The SKY-SDR now offers a choice of 4 different bandwidths for DIGI Modes. Changing filters changes both the received bandwidth and the transmitted bandwidth of your own signal.
Here are your choices:
DIGI AGC 20 is a factory fixed value, and does not change, even if you see value changes on displayed MENU.
Recent developments in DIGI Modes has made it necessary to make changes to the original filter schema used in the SKY-SDR. Additional filters are now available as well as a fast AGC.
Ever increasing interest in FT8, JT65 as well as FT4 (coming soon) has resulted in over-crowding of the tiny frequency spectrum (2 kHz) allocated to DIGI Modes
We recommend the following usage of the filters: