Elecraft K3S firmware v3.52

MCU 3.52 / DSP 2.43 / K3 Utility 1.2.10.27

Misc.

Improvements

• Eliminated some audio artifacts noted during control chang​es.
• Eliminated interruption of transmitted CW signal when certain switches were tapped, including RIT, during external keying.
• VFO LOCK PREVENTS COARSE STEPS VIA OFFSET CONTROL:

Normally, you can use the RIT/XIT offset control to move VFO A in coarse steps if (1) RIT and XIT are both turned off, and (2) CONFIG: VFO OFS is set to ON. Now, these conditions are overridden if the VFO is locked.

• AUTO-NOTCH IN SSB MODE EASIER TO TURN ON/OFF: The NTCH switch now behaves differently in SSB mode. Tapping it turns auto notch on-off, rather than cycling through off-auto-manual notch. (To turn on manual notch in SSB mode, hold the NTCH/MANUAL switch.) New Feature: Main/Sub AF Mixing Menu Entry
• AUDIO MIXING CONTROL ADDED: Normally, main receiver audio is heard in the left audio channel, and sub in the right. Using the CONFIG: L-MIX-R menu entry, you can now put main in both channels while leaving sub in only one (or vice-versa, or even put both receivers in both channels). Another benefit of this change is that AFX (audio effects) can be used even while the sub receiver is turned on. (AFX, if turned on, will apply to any receiver whose audio is mapped both left and right.) Notes: Applies only to non-diversity mode use of the sub receiver. (In diversity mode, left/right differentiation is maximized for best results.) Youll need stereo headphones or speakers to listen to stereo separation and audio effects. Set CONFIG: SPKRS to 2 if using stereo speakers. (Headphones will always work with stereo material unless SPKRS is set to 1 *and* CONFIG: SPKR+PH is set to ON.) New Feature: User-Defined Switch Functions (e.g., ÒSPLIT+2Ó)
• SWITCH MACROS: You can now program the K3s PF1-2 and M1-M4 switches to execute K3 remote control sequences, or Òmacros. Ó They are created and tested using K3 Utility (rev. 1.2.10.26 or later). Once macros are finished, you can send them to the K3, where they can be assigned to any programmable function switch. The K3 Programmers Reference, revision C6, has a number of sample macros and further details.

Example: A>B, A>B, SPLIT, VFO B up 2 kHz, RIT/XIT off, assigned to PF1 To create a macro and assign it to a K3 front panel switch, youll need to complete steps 1-8 below. Once youve been through the process one time, youll find creating or modifying macros very easy.

1. Run K3 Utility.
2. Click on the Command Tester/K3 Macros tab.
3. Click on the Edit Macros button. This pops up the macro edit window.
4. In MACRO 1s Macro Label field, enter the label ÒSPLIT+2Ó.
5. In the Macro Commands field, enter:

SWT13;SWT13;FT1;UPB5;RT0;XT0;

(The number 5 in the ÒUPB5Ó command is not a value in kHz; it is an index into a table of step sizes. UPB5 moves VFO B up 2 kHz, DNB5 moves it down 2 kHz, etc. There are similar commands for VFO A. For the full list, see the ÒDNÓ (down) command in the Programmers Reference.)

6. Click on Send Macros 1-8 To K3.
7. At the K3, locate CONFIG: MACRO x menu entry, and tap 1 if the menu entry label is not already ÒMACRO 1Ó.
8. Hold PF1 to assign PF1 to MACRO 1. Exit the menu.

From then on, PF1 will flash ÒSPLIT+2Ó and execute the above sequence.

Note: M1-M4 cannot be used simultaneously for both message play and macros.

To revert an Mx switch back to message play, first switch to CW mode, then tap Mx, tap REC, and tap Mx again.

This will also restore message play for DVR purposes (voice modes).

Remote Control Command Changes:

• MP COMMAND ACCESS ADDED TO: LCD ADJ, LCD BRT, LED BRT.

This allows creati​on of a switch macro that does LCD DIM/BRT, for example. You can also use MP to control the new Main/Sub Mix menu entry. See K3 Programmers Reference, revision C6 or later.

• Switch- and menu-emulation commands now run to completion before subsequent commands in the buffer are handled. This means that applications and macros using these emulation commands no longer have to insert delays (such as dummy ;) commands.
• ÒBWÓ (BANDWIDTH) REMOTE CONTROL COMMAND ADDED: This is a non-modal version of FW (it work with either the K30 or K31 meta-command in effect).
• ÒSBÓ REMOTE CONTROL COMMAND ADDED (sub receiver on/off).
• ÒLNÓ REMOTE CONTROL COMMAND ADDED (link/unlink VFOs).
• ÒKYWÓ VARIATION OF ÒKY<MSG>Ó COMMAND ADDED: Waits until the current message has been sent before processing other host commands.

This is useful if the ÒKY<MSG>Ó command is followed by other commands, such as ÒKSÓ (keyer speed control). See examples in Programmers Reference.

• ÒSWTÓ / ÒSWHÓ COMMAND IMPROVEMENT: These switch emulation commands are now non-modal (they will work with either the K30 or K31 meta-command in effect).
• ÒDNÓ / ÒUPÓ COMMANDS IMPROVED: These VFO movement commands have extended functionality and are now non-modal (they will work with any of the K2x meta commands in effect).