Elecraft K3S firmware v2.76

MCU 2.76 / DSP 1.98

• POWER-ON AF NOISE BURST: This should now be eliminated.
• DIGIT 2 SWITCH TONE FEE​DBACK RESTORED. The 2 key on the numeric keypad now provides tone feedback when used for numeric entry or within menu entries. Theres no tone when its used as ÒREVÓ (temporary A/B VFO reverse).
• SSB TX AFTER VFO A/B SWAP: Transmit filter settings are now correct after any A/B swap, regardless of the modes of VFO A and B. This had been noted by some customers as a problem on power-up, but it could occur anytime the VFOs were in different modes at the time of an A/B swap.
• INDEPENDENT PREAMP AND ATTN FOR SUB RECEIVER: The preamp and attenuator settings for the receiver are now independent of main. On each band, you can set up the subs preamp/attenuator as desired using BSET. The subs preamp/attenuator are separate even in diversity mode, where youll often be using a lower-gain antenna for the sub receiver. Note: A second tap of A>B within the 2-second window still copies all main receiver settings to the sub, including preamp and attenuator.

For software developers:

• ÒFR0Ó COMMAND (SPLIT CANCEL): Now correctly restores the VFO A arrow icon.
• CONFIG: KPA3 MENU ENTRY: The parameter for this menu entry is now accessible via the ÒMPÓ command.
• ÒFAÓ/ÓFBÓ commands and loss of PLL lock: Large FA/FB frequency steps were, on ​rare occasion, causing loss of PLL lock. This has been corrected.
• Added "PA$" (sub RX preamp) and "RA$" (sub RX attenuator) commands.

This is in conjunction with the sub preamp and attenuator settings now being Independent of main (see above). During BSET, both return Ò?;Ó at present.