K8UT became a Silent Key 14-AUG-2024

22-DEC-2025: This great product is now available from KK1L!

freqez board image

“Your high tech option”

The K8UT FreqEZ Band Decoder is now available from KK1L. It is a combination hardware/software project that provides highly configurable Band Decoding and Remote Antenna selection. For amateurs who use N1MM+, Logger32, UcxLog, Log4OM, or DXLab logging software, FreqEZ will leverage those programs’ UDP packets for antenna switching. For other amateurs, FreqEZ can connect to the BCD band outputs available from most transceivers. Without available UDP packet or BCD band information, FreqEZ can also be used as a sophisticated manual antenna switch.

K8UT’s Original FreqEZ Page

Key Features

  • The FreqEZ software is free
  • Inexpensive, off-the-shelf, readily available hardware
  • No DIP switches, diodes, solder-bridges. All configuration is via software settings
  • Manual OR Automatic operation
  • Manual antenna selection with simple mouse clicks in the Windows FreqEZ Console
  • Automatic antenna selection from network-based UDP packets or hard-wired BCD inputs
    • In N1MM+ – use the antenna numbers from the Configurer >Antenna table
      • Supports the N1MM+ Keyboard Shortcut for multiple antennas per band by toggling <alt>+F9
    • In Logger 32, DXLab, Log4OM, UcxLog, TR4Win or N1MM+ – use the Tx radio frequency from the UDP RadioInfo packet
    • Auto-magic switching (no re-configuration) from N1MM’s antenna numbers to Logger32 (v4.0 or lter), TR4W (v4.100.10 or later), or DXLab Commander’s Frequencies
    • Hard-wired method, for logging programs that do not support UDP broadcasts
      • Connect to a transceiver’s BCD output jack
      • OR… use BCD signals from a PC LPT parallel port (supported by some logging programs – ugh!)
  • Single Op Profiles in the Setup window for SO1V, SO2V or SO2R configurations
  • Separate antenna configurations for Radio1 versus Radio2 when operating SO2V or SO2R
  • The FreqEZ Console and the FreqEZ Controller communicate via WiFi or wired Ethernet connections
    • The Raspberry Pi FreqEZ Controller operates “headless” – can be located anywhere
  • Each Raspberry Pi FreqEZ Controller contains 8 (HAT8 card) or 16 (HAT16) outputs
    • The FreqEZ HAT Controller provides bi-directional opto-MOSFET solid-state devices that can each handle 20 volts AC/DC at 500 milliamperes
    • The FreqEZ DIY Controller provides either 8 or 16 “dry contacts” that sink (ground) or source (+12 vdc) in any combination from a variety of available relay boards

Software required to use FreqEZ

FreqEZ v2.2.0 Windows Console – to be installed on each computer accessing the FreqEZ

Standard Windows setup program:
Download and unzip this ZIP archive. Then run the setup executable:

FreqEZ Windows Console: FreqEZ WinConsole_v2.2.0.zip

FreqEZ v2.2.0 Raspberry Pi Controller – to be installed on the Raspberry Pi connected to the FreqEZ

Burn microSD Disk Method (RECOMMENDED):

  • A complete FreqEZ Controller software installation can be created using the Raspberry Pi organization’s Imager program ( https://www.raspberrypi.com/software/ ) to burn this image file to a microSD card. The resulting microSD will contain both the Raspbian operating system and pre-configured FreqEZ RPi software. When finished, just insert the microSD card into the RPI and apply power.
  • Step-by-step instructions can be found in the “Raspberry Pi Controller – Preparing the microSD Card” section of the documentation by clicking on Help in the v2.2.0 Windows Console or opening the on-line Help file FreqEZhelp.pdf.
  • FreqEZ Raspberry Pi O/S and program image file: FreqEZ_RPi_v220_ISO (DO NOT UNZIP)

Manual File Copy Method (ALTERNATE):

  • The files in this FreqEZ RPi Controller ZIP archive can be downloaded and manually copied to specific locations within the Raspberry Pi file structure.
  • Step-by-step instructions can be found in the “APPENDIX: Alternative Method for Preparing the microSD Card” section of the documentation by clicking on Help in the v2.2.0 Windows Console or opening the on-line Help file FreqEZhelp.pdf.
  • FreqEZ Raspberry Pi Controller: FreqEZ_RPiController_v2.2.0.zip
FreqEZ v2.2.0 Help PDF file

FreqEZ Documentation / Help file: FreqEZhelp.pdf