Elecraft K3S firmware v5.58

MCU 5.58 / DSP 2.88 / FPF 1.26

• PREAMP 2 (ON KXV3B) NOW USABLE ON 15 AND 17 M: PREAMP 2 improves noise figure by about 6 dB on 15 m and 3 dB on 17 m relative to PREAMP 1.
• TX LINE OUT (MONITOR) LEVEL NOW ADJUSTABLE: In CONFIG: LIN OUT menu entry, tap '2' (REV switch) to set the "T=" level (TX monitor). Tap '2' again to return to the RX LINE OUT setting.
• K-POD SWITCHES WORK CORRECTLY FOR MESSAGE PLAY: K-Pod switch tap and hold can now be used ​to play, chain, or repeat messages programmed into the K3's M1-M4 message buffers. For example, if macros 9 and 10 were set up as "SWT21;" and "SWT31;" using K3 Utility, then tapping K-Pod switches F1 and F2 would trigger messages M1 and M2, respectively.
• AM SYNC BUG DURING MEMORY RECALL/STORE FIXED: Previously, recalling or storing a memory with AM-S/TRACK selected could cause the displayed memory number to change on VFO B.
• QSK/VOX DELAY NOT APPLIED IN VOX MODE IF TX START/STOP IS VIA PTT OR XMIT SWITCH: When VOX is selected for any operating mode, the selected delay (set by the DELAY control) is applied on exit from transmit. Now, if the operator starts/stops transmit via PTT or the transmit switch with VOX selecte​d, no delay is applied.

For software developers:

• VOX SET HOST COMMAND ADDED: VXn where n = 0 for OFF, n = 1 for ON. CW VX setting is separate from voice/data modes.
• RX ANTENNA HOST COMMAND ADDED: ARn where n = 0 for RXANT OFF, n = 1 for ON.