Elecraft K3S firmware v2.63

MCU 2.63 / DSP 1.95

• NORM SWITCH ALLOWED DURING TX: The ÒNORMÓ switch function (receive passband normalization, e.g. 400 Hz in CW mode) can now be accessed during transmit mode. It takes effect after the K3 returns to receive mode. This is especially useful for CW operation.
• AM COARSE VFO TUNING RATES: Now 1, 5, 9, and 10 kHz.
• AM TRANSMIT: CONFIG: TXG VCE no longer affects AM Tx Levels.
• SPLIT COMBINATIONS AVAILABLE: Cross-mode SPLIT operation is possible with any combination of CW and SSB for VFO A and B. Same-mode SPLIT is possible in all modes e​xcept PSK-D.
• CROSS-MODE SPLIT INDICATION: If you turn on SPLIT with VFO A and B in different legal modes (e.g. CW and SSB), the K3 will remind you of VFO Bs mode by flashing it (as well as the VFO B TX arrow). This reminder can be cancelled by tapping any switch, key, or PTT. The reason for the ÒreminderÓ is that operators usually enter cross-mode split by accident. If so, cancel the reminder flash, then use BSET to change VFO Bs mode, or tap A>B to copy mode A to mode B.
• COMPRESSION RANGE: Some operators asked for a higher ÒCMPÓ (speech compression) setting to add ÒpunchÓ under certain conditions. It can now be set from 0-40. We still recommend lower settings (0-20) fo​r normal operation.

For software developers:

• ÒFW$Ó ADDED (direct sub/VFO B filter bandwidth).
• ÒSM$Ó ADDED (direct sub-receiver S-meter read).
• "DV" (DIVERSITY) COMMAND: DV0 (off), DV1 (on). Also turns sub off/on. To turn on the sub but not diversity, use an ÒSWTÓ command (verify SUB status with ÒDSÓ).
• COMMANDS AVAILBLE DURING BSET: "IF", "FA", "FB", "MDÓ, ÒMD$", and "DT" (GET only). ÒFWÓ and ÒFW$Ó work in BSET except during diversity (TBD).