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K3 Software Page
See the bottom of this page to get the latest K3 firmware downloader, K3 Utility
and KUSB Drivers.
For K3 Logging and Control Software, Click here for our K3 ( & K2) Software Page.
For K144XV Firmware Upgrades and the K144XV Firmware Utility, click here.
For P3 Firmware Upgrades and the P3 Firmware Utility, click here.
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Beta K3 Firmware Revisions MCU 4.67 / DSP 2.81, 04/16/2013 IMPORTANT: MCU 4.67 must be loaded with the new K3 Utility, Version 1.13.4.15 or later. See
K3 Beta Firmware Instruction
for information on obtaining beta releases.
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MCU 4.60 / DSP 2.80, 11/17/2012 Latest Production Release This release will automatically be recognized by K3 Utility. Please use latest K3 Utility to load. See K3 Firmware Release Notes for a complete revision history. Note: For KPAK3AUX cable use between the KPA500 and K3, K3 Version 4.36, or later, must be loaded.
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New Firmware Load Information Be
sure to download *all* new firmware including DSP and FPF (new --
flash memory tables). If you see “FPF LOAD PENDING” on the K3’s
LCD, it is probably because you were
in “Advanced” mode in K3 Utility. In this case,
check the “FPF” and “Always load data tables” boxes and try
the load again. |
K3
Utilities and Drivers for Windows, Mac and Linux
Use this
software to load the latest firmware into your K3.
See
below for K3Utility
Elecraft offers the KUSB
serial-to-USB cable
Before plugging in either of these cables to any of your computer's USB ports, you will need to have installed the correct drivers for your computer's operating system. Drivers are available for most Windows, Mac, and Linux OS's. Note that latest Windows 7 operating system already has the proper drivers included for the FTDI chip set and will automatically install them if you just plug the FTDI cable into a USB port.
FTDI
KUSB Drivers (Currently shipping KUSBs) Prolific
KUSB Drivers (Older KUSBs that shipped approximately before
July, 2010)
Connecting the K3 to a Computer
The K3 uses a standard RS232 port implemented via a female DB9 for interfacing to external devices and programs.
If your computer has a standard serial port, all you will need is a straight through serial cable with a male DB9 on one end and the proper connector (usually a female DB9 or DB25) on the other end to plug into your computer's serial port and you are all set.
Most modern computers no longer have serial ports but instead use USB (Universal Serial Bus) ports for connecting to external devices. Elecraft provides the KUSB - USB to Serial adapter to connect the K3 to these computers. See above for the KUSB Drivers
After completing a new software download to your K3, please power cycle the K3 OFF and then back ON before using it.
K3 Utility (Windows Version 1.13.5.9) May 9,
2013
Note: This K3 Utility version can be used to load K3 MCU versions 1.32 and above to your K3.
Download and run the file from the above link.
Use this utility to check for the latest releases of new features for your K3.
Requires either a RS-232 cable or KUSB Serial-USB Cable to download from your PC to the K3.
Note: This K3 Utility version can be used to load K3 MCU versions 1.32 and above to your K3.
This K3 Utility version is REQUIRED to load K3 MCU versions 1.79 and above to your K3.
Files are in universal binary in .zip file.
Use this utility to check for the latest releases of new features for your K3.
Requires either a RS-232 cable or KUSB Serial-USB Cable to download from your Mac to the K3.
K3 Utility (Linux .tgz Version 1.13.4.15) April 15, 2013
Note: This K3 Utility version can be used to load K3 MCU versions 1.32 and above to your K3.
This K3 Utility version is REQUIRED to load K3 MCU versions 1.79 and above to your K3.
Files are in TAR archive (gzip-compressed) format.
Use this utility to check for the latest releases of new features for your K3.
Requires either a RS-232 cable or KUSB Serial-USB Cable to download from your computer to the K3.
For K3 Logging and Control Software, Click here for our K3 (& K2) Software Page.
K3 Firmware FTP page (Just for direct viewing of the current K3 firmware files.)