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Available PC, Mac and Smartphone Applications:
PC Software for the Elecraft K3
Mac OS X Applications for the Elecraft K3 and KX3
Apple iPhone and Android Smartphone Applications

PC Software for the Elecraft K3

K3 Filter Tools (Version 1.0.4) Updated 01/14/2014:

K3 Filter Tools was developed to allow K3 owners to characterize the crystal roofing filters installed in their radios, as well as the adjustable DSP filters. All that is needed is a clean, stable signal source that can be injected into the K3's antenna port. The data generated by the program for each crystal filter, or DSP filter configuration, can be saved, and the program can generate a simple plot of the data which can also be saved.

With K3 Filter Tools the user can measure the -3dB, -6dB, and -60dB bandwidths of each filter and calculate the filter shape factor, and then compare the results to Elecraft's published specifications. You can also engage DSP filtering at selected bandwidths to see how the combination of crystal and DSP filtering affects the passband and shape of the filter skirts. You can also look at just the nose of the filter and see how flat the passband is and the extent of bandpass tilt. Experienced users will certainly find other uses for the program.

Click here to download K3 Filter Tools

Version 1.0.3 incorporates these revisions and bug fixes:

Version 1.0.4 incorporates these revisions and bug fixes:

We ran a number of tests using K3 Filter tools to determine how the filter response is affected by the Pitch setting of the K3 when running filter sweeps in CW mode. The results clearly show that Pitch is a significant factor that needs to be considered when running filter sweeps. In brief, set your Pitch to 800 Hz for best results.

Effect of Pitch on Filter Response

We also ran tests to determine whether better results can be obtained by using an operating mode other than CW because of the obvious limitations on low frequency response in CW mode. The results show that using Data A mode produces better low frequency response on the filter skirts than using CW mode. In short, we recommend tests of your CW filters be run in Data A mode.

Effect of Operating Mode on Filter Response

Mac OS X Applications for the Elecraft K3 and KX3

K3NetServer for Mac OS X Snow Leopard, Version 1.1 Released 11/19/2011

K3NetServer is a server application for the Mac that provides two-way communication between an iPhone via WiFi and an Elecraft K3 or KX3 radio attached to the Mac via a serial cable.

If you wish to use K3iNetwork or K3iDitDah with a Mac computer attached to your K3/KX3 via a serial port, you need to download and install one of the following available servers:

K3NetServer and SServer communicate with the K3/KX3 via a RS232 serial cable connected between the Mac and the K3/P3 or KX3. K3iNetwork or K3iDitDah communicate with K3NetServer or SServer over WiFi and commands are passed through K3NetServer or SServer to the K3/KX3. K3/KX3 responses are returned to K3iNetwork (iPhone) via K3NetServer or SServer and the WiFi connection.

K3NetServer Instructions:

  1. Get K3NetServer from one of the links below. Install K3NetServer on your Mac. Connect your K3/P3 or KX3 to the serial cable from your Mac and turn the K3/P3 or KX3 on. Make sure the K3/KX3 is operating at 38400 Baud.
  2. Start K3NetServer and select the Serial Port Setup tab. Select your serial port from the list. Leave the other settings at the defaults. Click on Open Port. Then click on Test Comm. You should see a response from the K3/KX3.
  3. Select the Server Startup tab and click on Start Server. It will indicate "K3NetServer started on host xxx.xxx.xxx.xxx." The "xxx.xxx.xxx.xxx" represents the IP Address of the Mac that K3NetServer is installed on. It will also indicate "K3NetServer started on port xxxxx." The "xxxxx" represents the port number selected for use by the server. Take note of the IP Address and Port as you will need them to set up K3iNetwork or K3iDitDah. (Note: You can optionally enter a port number before you start the server if you want it to operate on a specific port of your choice.)
  4. Select the Command Tester tab if you wish to test various K3 or KX3 commands. See the Elecraft K3/KX3 Programmer's Reference for a complete reference of available commands.
  5. Select the Monitor tab if you wish to monitor communications between K3iNetwork or K3iDitDah and the K3/KX3. You can also enter K3/KX3 commands in the To K3 box to test communication between K3NetServer and the K3/KX3.

Images of K3NetServer Mac OS X Application

Apple iPhone and Android Smartphone Applications

Available iPhone and Android Applications:
Florida Aquarium Guide
KX1 Micro Manual
K2 Micro Manual
K3/KX3 Programmer's Reference
K3 Micro Manual
KX3 Micro Manual
P3 Micro Manual
K3iConnect (iPhone only)
K3iNetwork (iPhone only)
K3iDitDah (iPhone only)

Florida Aquarium Guide:

iPhone Version 2.1.0 Released February 9, 2016 | Android Version 2.1.0 Released February 5, 2016

The Florida Aquarium Guide is a handy and comprehensive reference for staff and visitors to The Florida Aquarium. It covers all the Galleries and Exhibits in the aquarium with detailed information on each of the animals on exhibit. It also contains an extensive glossary of terms used to describe the animals. An index by common name and an index by genus and species are also provided. Further, each detailed animal description can be searched by keyword in the iPhone version.

The Florida Aquarium Guide includes the following galleries and exhibits in the table of contents:

These chapters cover all of the galleries and exhibits in The Florida Aquarium with detailed fact sheets on most of the animals in the aquarium. It is hard to keep up with all the changes, additions and deletions, of animals at the aquarium so this app will be updated regularly.

Images of Florida Aquarium Guide iPhone and Android Apps

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store, or Android device from Google Play.

KX1 Micro Manual:

iPhone Version 1.0 Released October 24, 2013 | Android Version 1.0 Released November 27, 2013

The KX1 Micro Manual is intended to be a handy reference to the Elecraft KX1 Owner's Manual. Most of the text in the application is taken from the KX1 Owner's Manual document with changes in format made to accommodate the iPhone and Android architecture. Also, included are operating manuals for the Elecraft KXAT1 Automatic Antenna Tuner, Elecraft KXPD1 Plug-In-Keyer Paddle , Elecraft KXB30 30-Meter Adapter Manual, and Elecraft KXB3080 30 and 80 Meter Adapter Manual. A Search Tool has also been added to allow the user to do a full-text search of any chapter in the application, or the entire document. Finally, HTML-style links have been added to all of the chapters to assist users with navigation.

The KX1 Micro Manual includes the following chapters in the table of contents:

These chapters cover all of the operating information in the Elecraft KX1 Owner's Manual, Revision E, May 21, 2010, plus Elecraft KXAT1 Automatic Antenna Tuner Manual, Revision B, July 27, 2011, Elecraft KXPD1 Plug-In-Keyer Paddle Manual, Revision A, October 14, 2003, Elecraft KXB30 30-Meter Adapter Manual, Revision A, October 14, 2003, and Elecraft KXB3080 30 and 80 Meter Adapter Manual, Revision A, March 2006.

Images of KX1 Micro Manual iPhone App

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store, or Android device from Google Play.

K2 Micro Manual:

iPhone Version 1.1 Released October 8, 2013 | Android Version 1.0 Released September 27, 2013

The K2 Micro Manual is intended to be a handy reference to the Elecraft K2 Owner's Manual. Most of the text in the application is taken from the K2 Owner's Manual document with changes in format made to accommodate the iPhone and Android architecture. Also, included are K2 option modules operating instructions. A Search Tool has also been added to allow the user to do a full-text search of any chapter in the application. Finally, HTML-style links have been added to all of the chapters to assist users with navigation.

The K2 Micro Manual includes the following chapters in the table of contents:

These chapters cover all of the operating information in the Elecraft K2 Owner's Manual, Revision I, March 29, 2012, plus the following K2 option manuals and KIO2 Programmer's Reference Manual:

Images of K2 Micro Manual iPhone App

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store, or Android device from Google Play.

K3/KX3 Programmer's Reference:

iPhone Version 1.4.4 Released October 4, 2013 | Android Version 2.0 Released September 17, 2013

The K3/KX3 Programmer's Guide is intended to be a handy reference to the Elecraft K3 and KX3 Programmer's Reference. Most of the text in the application is taken from the K3/KX3 Programmer's Reference document with changes in format made to accommodate the iPhone and Android architecture. Also, text from the Programmer's Reference document is supplemented with text from the Elecraft K3 Owner's Manual and the Elecraft KX3 Owner's Manual. The intention was to make it easier for the programmer by including Owner's Manual information at appropriate points in the application so less cross-checking is necessary. See the Menu Selection and Switch Emulation sections for example.

The K3/KX3 Programmer's Guide includes the following sections in the table of contents:

These sections include all of the information in the Elecraft K3/KX3 Programmer's Reference document plus supplementary text from the Elecraft K3 Owner's Manual and KX3 Owner's Manual.

Images of K3/KX3 Programmer's Guide iPhone App

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store, or Android device from Google Play.

K3 Micro Manual:

iPhone Version 1.4.1 Released October 2, 2013 | Android Version 1.0 Released September 21, 2013

The K3 Micro Manual is intended to be a handy reference to the Elecraft K3 Owner's Manual. Most of the text in the application is taken from the K3 Owner's Manual document with changes in format made to accommodate the iPhone and Android architecture. Also, included are K3 Operating Tips from Elecraft's website plus select emails found on the Elecraft Reflector. Further, the K3 Micro Manual includes the latest Firmware Release notes, and the text was updated to include these notes. Thus, the K3 Micro Manual is current through April 16, 2013. Version 1.4.1 includes a comprehensive index that allows the user to tap an index item and be taken to the associated text in the Owner's Manual. A Search Tool has also been added to allow the user to do a full-text search of any chapter in the Owner's Manual, or the entire document. Finally, HTML-style links have been added to all of the chapters to assist users with navigation.

The K3 Micro Manual includes the following chapters in the table of contents:

These chapters cover all of the information in the Elecraft K3 Owner's Manual, Revision D10, August 24, 2011, plus K3 Firmware Release Notes through April 16, 2013.

Images of K3 Micro Manual iPhone App

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store, or Android device from Google Play.

KX3 Micro Manual:

iPhone Version 1.3 Released October 13, 2015 | Android Version 2.0 Released September 17, 2013

The KX3 Micro Manual is intended to be a handy reference to the Elecraft KX3 Owner's Manual. Most of the text in the application is taken from the KX3 Owner's Manual document with changes in format made to accommodate the iPhone and Android architecture. Further, the KX3 Micro Manual includes the latest Firmware Release notes, and the text was updated to include these notes. Thus, the Micro Manual is current through August 16, 2015. Version 1.3 includes a comprehensive index that allows the user to tap an index item and be taken to the associated text in the Owner's Manual. A Search Tool has also been added to allow the user to do a full-text search of any chapter in the Owner's Manual, or the entire document. Finally, HTML-style links have been added to all of the chapters to assist users with navigation.

The KX3 Micro Manual includes the following chapters in the table of contents:

These chapters cover all of the information in the Elecraft KX3 Owner's Manual, Revision C5, June 16, 2014, plus KX3 Firmware Release Notes through August 16, 2015.

Images of KX3 Micro Manual iPhone App

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store, or Android device from Google Play.

P3 Micro Manual:

iPhone Version 1.4 Released October 3, 2013 | Android Version 1.0 Released September 25, 2013

The P3 Micro Manual is intended to be a handy reference to the Elecraft P3 Owner's Manual and P3 Programmer's Reference. Most of the text in the application is taken from the P3 Owner's Manual and P3 Programmer's Reference documents with changes in format made to accommodate the iPhone and Android architecture.

The P3 Micro Manual includes the following chapters in the table of contents:

These chapters cover all of the information in the Elecraft P3 Owner's Manual, Revision C, August 26, 2011, and the P3 Programmer's Reference, Revision A4, March 21, 2012.

Images of P3 Micro Manual iPhone App

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store, or Android device from Google Play.

K3iConnect:

iPhone Version 1.2.2 Released January 30, 2014 | Not currently available for Android phones

K3iConnect provides remote control of the Elecraft K3 and KX3 via an Ad Hoc network using a serial port adapter. The user can control many functions of the K3/KX3 radio using their iPhone. CW, RTTY and PSK31 QSOs are possible. The user can watch text from the K3/KX3 VFO B window stream to their iPhone in the Terminal tab window, and send CW, RTTY, or PSK, as appropriate, in response.

K3iConnect has windows patterned after the Command Tester and Terminal windows of the Elecraft K3 Utility program. It provides similar functionality, and it can all be accomplished remotely using the iPhone. Once the user establishes communication with the K3 or KX3 via an Ad Hoc network the iPhone is used to control the K3/KX3. There are no wires or cables that need to be attached to the K3/KX3, just the WiFly serial port adapter.

As with the K3 Utility program the Commands tab allows the user to send commands to the K3/KX3 and read the response in a text window. Users who are familiar with the K3/KX3 command set can control many aspects of K3/KX3 operation with the Commands window.

The Terminal tab functions in a manner similar to the K3 Utility Terminal tab. The user can send text to the K3/KX3 to be transmitted in CW, RTTY, or PSK modes. Further, the text displayed on the K3/KX3 VFO B window is shown in a text window on the iPhone. Thus it is possible to carry on CW or some data mode QSOs using your iPhone.

The Controls tab provides a number of K3 and KX3 front panel controls. There are several buttons available to the user on the iPhone interface that allow direct control of K3/KX3 functions. For example, the user can turn the K3/KX3 preamp or attenuator on or off by tapping the corresponding buttons on their iPhone. The More... button opens a form with additional K3/KX3 controls. However, there are several K3 front panel controls that have no equivalent on the KX3. In those cases the K3 control is replaced with one available on the KX3 as follows:

K3iConnect controls the K3/KX3 through an Ad Hoc network. The application is designed to work with Roving Networks WiFly Serial adapter (Model RN-340M-S, Mouser Part No# 765-RN-340M-S). This solution allows the K3/KX3 to be controlled without any cables or a PC/Mac. The WiFly is plugged into the K3/P3 RS232 port. Communication with the WiFly is wireless through an Ad Hoc network set up by the adapter. The WiFly signal can be received by the iPhone within the general proximity of the user's home, or approximately within 50 feet of the K3/KX3 depending on home construction materials. Open air range can be much greater, up to a 300 foot radius of the K3/KX3. The WiFly solution allows remote control of the K3/KX3 in the field or other locations where WiFi and a dedicated PC/Mac may not be available.

Images of K3iConnect iPhone App

Instructions for setting up the WiFly Serial adapter

The application is available for download to your Apple iPhone, iPod Touch or iPad from the Apple App Store. (Not currently available for Android smartphones.)

K3iNetwork:

iPhone Version 1.4.2 Released January, 2014 | Not currently available for Android phones

K3iNetwork provides remote control of the Elecraft K3 or KX3 via a WiFi network and PC/Mac server program. The user can control many functions of the K3/KX3 radio using their iPhone. CW, RTTY and PSK31 QSOs are possible. The user can watch text from the K3/KX3 VFO B window stream to their iPhone in the Terminal tab window, and send CW, RTTY, or PSK, as appropriate, in response.

K3iNetwork has windows patterned after the Command Tester and Terminal windows of the Elecraft K3 Utility program. It provides similar functionality, and it can all be accomplished remotely using the iPhone. Once the user establishes communication with the K3/KX3 via a WiFi network the iPhone is used to control the K3 or KX3.

As with the K3 Utility program the Commands tab allows the user to send commands to the K3 and read the response in a text window. Users who are familiar with the K3/KX3 command set can control many aspects of K3 or KX3 operation with the Commands window. In addition, users can test and save macros for later use to quickly set multiple K3/KX3 operating parameters with one tap of a button.

The Terminal tab functions in a manner similar to the K3 Utility Terminal tab. The user can send text to the K3 or KX3 to be transmitted in CW, RTTY, or PSK modes. Further, the text displayed on the K3/KX3 VFO B window is shown in a text window on the iPhone. Thus it is possible to carry on CW or some data mode QSOs using your iPhone.

The Controls tab provides a number of K3/KX3 front panel controls. There are several buttons available to the user on the iPhone interface that allow direct control of K3/KX3 functions. For example, the user can turn the K3 preamp or attenuator on or off by tapping the corresponding buttons on their iPhone. The More... button opens a form with additional K3 and KX3 controls. However, there are several K3 front panel controls that have no equivalent on the KX3. In those cases the K3 control is replaced with one available on the KX3 as follows:

The K3iNetwork application is designed to work with the user's home WiFi network. To use it with a WiFi network the user will install K3NetServer or SServer on their PC or Mac. K3NetServer and SServer communicate with the K3 or KX3 via a RS232 serial cable connected between the PC/Mac and the K3/P3 or KX3. K3iNetwork communicates with K3NetServer or SServer over WiFi and commands are passed through K3NetServer or SServer to the K3/KX3. K3/KX3 responses are returned to K3iNetwork (iPhone) via K3NetServer or SServer and the Wifi connection.

Note: For best results for Mac users install K3NetServer Version 1.1 to use K3iNetwork Version 1.4.2. Or use SServer for Mac OS X. See below for links to this software.

Images of K3iNetwork iPhone App

Using Skype with K3iNetwork to Provide Streaming Audio

The application is available for download to your iPhone, iPod Touch or iPad from the Apple App Store. (Not currently available for Android smartphones.)

If you wish to use K3iNetwork with a Windows PC or Mac computer attached to your K3/KX3 via a serial port, you need to download and install one of the following available servers:

K3iDitDah:

iPhone Version 1.2.2 Released February 4, 2014 | Not currently available for Android phones

K3iDitDah provides remote control of the Elecraft K3 or KX3 via a WiFi network and PC/Mac server program. The user can control many functions of the K3/KX3 radio using their iPhone. CW, RTTY and PSK31 QSOs are possible. The user can watch text from the K3/KX3 VFO B window stream to their iPhone in the Terminal tab window, and send CW, RTTY, or PSK, as appropriate, in response. This app is very similar to K3iNetwork except that instead of using the iPhone's virtual keyboard to send text to be transmitted, the user taps out morse code using Dit and Dah buttons.

K3iDitDah has windows patterned after the Command Tester and Terminal windows of the Elecraft K3 Utility program. It provides similar functionality, and it can all be accomplished remotely using the iPhone. Once the user establishes communication with the K3/KX3 via a WiFi network the iPhone is used to control the K3 or KX3.

As with the K3 Utility program the Commands tab allows the user to send commands to the K3 and read the response in a text window. Users who are familiar with the K3/KX3 command set can control many aspects of K3 or KX3 operation with the Commands window. In addition, users can test and save macros for later use to quickly set multiple K3/KX3 operating parameters with one tap of a button.

The Terminal tab functions in a manner similar to the K3 Utility Terminal tab. The user can send text to the K3 or KX3 to be transmitted in CW, RTTY, or PSK modes. Further, the text displayed on the K3/KX3 VFO B window is shown in a text window on the iPhone. Thus it is possible to carry on CW or some data mode QSOs using your iPhone.

The Controls tab provides a number of K3/KX3 front panel controls. There are several buttons available to the user on the iPhone interface that allow direct control of K3/KX3 functions. For example, the user can turn the K3/KX3 preamp or attenuator on or off by tapping the corresponding buttons on their iPhone. The More... button opens a form with additional K3 and KX3 controls. However, there are several K3 front panel controls that have no equivalent on the KX3. In those cases the K3 control is replaced with one available on the KX3 as follows:

The K3iDitDah application is designed to work with the user's home WiFi network. To use it with a WiFi network the user will install K3NetServer or SServer on their PC or Mac. K3NetServer and SServer communicate with the K3 or KX3 via a RS232 serial cable connected between the PC/Mac and the K3/P3 or KX3. K3iDitDah communicates with K3NetServer or SServer over WiFi and commands are passed through K3NetServer or SServer to the K3/KX3. K3/KX3 responses are returned to K3iDitDah (iPhone) via K3NetServer or SServer and the Wifi connection.

Note: For best results for Mac users install K3NetServer Version 1.1 to use K3iDitDah Version 1.2.1. Or use SServer for Mac OS X. See below for links to this software.

Images of K3iDitDah iPhone App

Using Skype with K3iDitDah to Provide Streaming Audio

The application is available for download to your iPhone, iPod Touch or iPad from the Apple App Store. (Not currently available for Android smartphones.)

If you wish to use K3iDitDah with a Windows PC or Mac computer attached to your K3/KX3 via a serial port, you need to download and install one of the following available servers: