Elecraft K3S firmware v3.94

MCU 3.94 / DSP 2.54

K3 Memory Editor:

• This revision of K3 firmware works with our new K3 Memory Editor (presently PC/Windows-only, but may eventually work on other platforms). The memory editor allows you to edit frequency memories 00-99 and, if desired, per-band quick memories (M1-M4).

Each memory includes a ÒQSYÓ button, providing convenient memory selection. Memory contents can be saved in a file and shared with other K3 users. (Further details posted elsewhere.)

• MEMORY CHANNEL COMMAND (MC): This new remote-control command was created in support of the K3 Memory Editor (see above). Sending an MC command to the K3 loads VFOs from a memory (or ÒchannelÓ), emulating M>V. It can be used in switch macros. Examples: ÒMC080;Ó loads memory #​80. ÒMC100;Ó loads 160-m quick-memory M1. (For details on creating macros, refer to K3 Utility Help or the K3 Programmers Reference.)

Other

New Features

• SEPARATE RECEIVE EQ FOR CW MODE: To set up CW RX EQ, select CW mode, then use MAIN: RX EQ. To set up voice-mode RX EQ, select any non-CW mode. (Mode can be changed while in the menu.)
• SEPARATE TRANSMIT EQ FOR SSB MODE: The SSB transmit passband can now be set up differently from AM/FM/ESSB. To set up SSB TX EQ, select USB or LSB with ESSB off, then use MAIN: TX EQ.

To set up AM/FM/ESSB TX EQ, select AM, FM, or USB/LSB with ESSB on. (To turn ESSB on/off, tap 1 in CONFIG: TX ESSB. When ON ,the Ò+Ó mode icon appears.) Also see TE command, below.

• TRANSMIT EQ SETUP COMMAND (TE): Can be used in switch macros to quickly optimize TX EQ settings for different users or mics. For example, ÒTE-08+00+00+00+00+00+00+00;Ó cuts the 50-Hz EQ band by 8 dB.
• Full support ​for P3 Panadapter. Allows very fast K3-to-P3 response during VFO movement, etc.

For software developers:

• See TE and MC commands, above.
• TEXT BUFFER COMMAND (TB): This is an improvement over the ÒTT1Ó method for implementing a CW/data terminal. Returns number of transmit characters from KY<text> packets remaining to be sent, as well as a string containing all available characters, and RX character count.
• Fixed KY<text> problem in PSK-D/FSK-D modes: Sending packets during the 4-second idle time was delaying transmit until end of idle time.
• Now recognizing a slashed-zero character from the PC keyboard (0xD8) in KY<text> packets. Converted to regular zero.
• IC COMMAND: Added CONFIG: MEM 0-9 setting (byte a, bit 1).