*NEW* Elecraft KX2 Beta Firmware 2.77

Hi guys, I am a little late, I know, but I was away and quite busy for my work. As of May 26th, Elecraft released a new beta firmware for the KX2 with 2 new cool add-on features : a QSO decoded text buffer and the ability to access 4 programmable buttons instead of only 1. It is very useful to execute some complex macros without the need to browse in the menu.

There is the firmware notes revision :

  • BUILT-IN LOGGING (CW and DATA MODES): When using the KX2 hand-held, logging may be difficult. The KX2 can now capture up to 2048 transmitted characters, along with time, band, and mode, so you can update a paper or electronic log later on.To enable logging, set MENU:LOGGING to ON. Logging applies to CW (C), PSK-D (P) and FSK-D (F) modes, and only when using the internal keyer. To take advantage of time stamping, either set the time (MENU:TIME) on every power-up of the KX2, or install a KXIO2, which includes a real-time clock powered by the internal battery.When logging is enabled, the DVR icon (above the S-meter) flashes slowly. Outgoing text decode is turned on, allowing you to make sure you’ve sent call signs accurately. If you fill the log, LOG FULL will be shown briefly, and the DVR icon will stop flashing. To review logged text, tap DISP and rotate VFO B to find the LOG display. The VFO A knob can then be used to scroll through text. Time/mode/band are shown on VFO A (e.g., “0023 C14”); text is shown on VFO B. Holding CLR erases the entire log.To “dump” the log, send “LG;” to the KX2 via KX2 Utility’s Command Tester screen.
    Tips: To conserve space, use message buffers (MSG) to send CQs, name/QTH, etc. Messages are not recorded in the log. To start/stop logging quickly, assign the LOGGING menu entry to a programmable function switch (PF1-PF4).
  • FOUR PROGRAMMABLE FUNCTIONS: The KX2 now has four programmable functions, PF1-PF4, rather than one. These can be used to quickly access often-used menu entries. To set up a programmable function, locate the desired menu entry, hold PFn, then tap any of ‘1’ through ‘4’. Exit the menu. From then on, the menu function can be accessed using the associated PFn switch. If a menu entry has only two values (such as ON/OFF), accessing it via a programmable function will select the alternate value, then exit the menu immediately. This is especially useful with menu entries such as DUAL RX, VOX MD, ALT MD, and ATU DATA (see below).
  • TWO ATU DATA SETS: The KX2 will now store two full sets of per-band data for the internal ATU (KXAT2). Use the ATU DATA menu entry to select which set to use. Typically SET 1 is used at a home location, and SET 2 for field operation. They can also be used in cases where more than one antenna is available for a given band. (Note: The ATU DATA menu entry has no effect on KXAT100 ATU data, which is already stored separately for each of the KXPA100 amplifier’s antenna jacks. The KX2 can remotely switch KXPA100 antennas using the ANT.X SW menu entry.)
  • ATU LC NETWORK VALUE DISPLAY: In either the ATU.DATA or ATU MD menu entry, tapping the “ATU” switch shows the present values of L (inductance), C (capacitance) and N (L-network configuration). This applies only to the internal ATU (KXAT2). The displayed data format is LxxCxxNy. is a 2-digit hexadecimal value that, when converted to binary, shows which ATU L or C relays are engaged. shows which side of the L-network the capacitance is on: Nt = TX side, and NA = antenna side.
  • ATU CLEAR AFFECTS ONLY CURRENT DATA SET: Within the ATU DATA or ATU MD menu entries, CLR (hold of the OFS/B knob) now clears KXAT2 ATU data only for the presently selected data set (SET 1 or SET 2) on the present band. As before, CLR is recommended when using the internal ATU with a new antenna. Once the data is cleared, very few ATU tune operations will usually be needed to cover an entire band. Note: If a KXPA100 amplifier is connected, the CLR operation applies to the KXAT100 ATU’s per-band/per-antenna data, not to the data for the internal KXAT2 ATU.
  • PSK-D/FSK-D SIDETONE HANG FIXED: Corrected a problem where sending characters at very slow speeds or with paddles continuously pressed could cause a transmit timeout, leaving the sidetone on.

The firmware can be downloaded from this link :


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Have fun and stay tuned!


de Jeff | VA2SS