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Introducing UltraMSK 01 Nov 2016

Features 01 May 2016

Latest News 01 Apr 2016


Gallery Sample UltraMSK data plots

NLK 25 September 2009 25 Sep 2009

NPM 25 September 2009 25 Sep 2009

NEW! Live data online 25 Sep 2014

NLK 25 March 2008 25 Mar 2008

NAA 25 March 2008 25 Mar 2008

NPM 25 March 2008 25 Mar 2008

NPM 13 December 2007 13 Dec 2007

2006 Gallery 01 Jan 2007

NLK 2 May 2007 02 May 2007

NTS 18.6 kHz 2 May 2007 02 May 2007

NTS 18.6 kHz 28 April 2007 28 Apr 2007

NPM 27 April 2007 27 Apr 2007

NLK 27 April 2007 27 Apr 2007

NPM 24 April 2007 24 Apr 2007

NLK 24 April 2007 24 Apr 2007

NWC 24 April 2007 24 Apr 2007

NWC 11 January 2007 11 Jan 2007

Gallery of UltraMSK VLF data 25 Sep 2009


Requirements UltraMSK system requirements

VLF antenna 22 May 2006

Requirements 01 Apr 2013

Sound card 23 May 2006

GPS receiver 23 May 2006


Software Free evaluation available!

Purchase UltraMSK 01 Oct 2014

UltraMSK 1.0 13 Apr 2014


Documentation UltraMSK documentation

Installing Linux 12 Jan 2012

Checking the GPS 1PPS signal 04 Jun 2006

Installing the Jack Audio Connection Kit 01 Jul 2006

Library dependencies 15 Jun 2006

UltraMSK options 05 Jun 2006

Getting Started with UltraMSK 13 Feb 2012


Resources UltraMSK resources and items of interest

VLF Station Placemarks 15 Jun 2006


About About UltraMSK

About UltraMSK 06 Jul 2015

Publications 05 Nov 2010

Site Design and Hosting 23 May 2006


FAQ UltraMSK frequently asked questions

What sound cards do you recommend? 01 Oct 2016

How do I get the best phase measurements? 10 Jul 2006


Blog UltraMSK Blog

Blog moved 14 Oct 2014

VTX back on 18.2 kHz 27 May 2012

VTX moves to 16.3 kHz 11 Jul 2011

India station back on 18.2 kHz 27 Mar 2011

15.1 kHz located in France 10 Feb 2011

New signal on 15.1 kHz 10 Feb 2011

M2 Solar Flare 13 Jun 2010

NLK20100612 13 Jun 2010

NWC20100612 13 Jun 2010

India moves frequency again 12 Apr 2010

India moves to 16.3 kHz 11 Jan 2010

Solar Activity 23 Sep 2009

NDK20090922 23 Sep 2009

NLK20090922 23 Sep 2009

NTS Sale shuts down 30 Jan 2009

The AARDDVARK Network 01 Jan 2008

NWC off air since 1 June 2007 24 Jul 2007


Beta UltraMSK beta releases

UltraMSK 1.0 beta 6 released 18 Nov 2006


Gallery2006 Gallery of 2006 UltraMSK Data

NWC 14 December 2006 14 Dec 2006

NLK 6 December 2006 06 Dec 2006

NWC 5 December 2006 05 Dec 2006

NPM 3 September 2006 03 Sep 2006

NWC 1 September 2006 02 Sep 2006

C2.3 Solar Flare on NPM 08 Jul 2006

NWC 30 May 2006 31 May 2006

Diurnal plot of NPM 20 May 2006

Solar Flare NAA 2006 April 6 07 Apr 2006

Solar Flare NPM 6 April 2006 07 Apr 2006

VLF Perturbations on NWC 20 May 2006

Diurnal plot of NWC 19 May 2006


UltraMSK on Fedora 17

Final configuration steps 16 Aug 2012

Data file output format 17 Aug 2012

Connect your VLF signal and start recording 18 Aug 2012

Connect the GPS 1PPS signal 19 Aug 2012

Start the JACK audio server jackd 20 Aug 2012

Soundcards 21 Aug 2012

Running the software 22 Aug 2012

Copy your license.dat file into the UltraMSK directory 23 Aug 2012

Request an evaluation license 24 Aug 2012

Download the UltraMSK software 01 Jul 2013

Add user to jackuser group 26 Aug 2012

JACK Audio 05 Jul 2013

Update the system 06 Jul 2013

Install Fedora 07 Jul 2013

Installation steps for Fedora 17 08 Jul 2013


builds

UltraMSK 1.0.2 Ubuntu 12.04 LTS 32 bit 22 Sep 2012

UltraMSK 1.0.2 Linux Mint 13 64-bit 21 Sep 2012

UltraMSK 1.0.2 Fedora 17 21 Sep 2012


UltraMSK on CentOS 6

UltraMSK-1.1.4 03 Oct 2016

UltraMSK 1.1.0 13 Jan 2015

UltraMSK 1.0.4 31 Mar 2013

Configure JACK audio 31 Mar 2013

Enable EPEL 31 Mar 2013

Update CentOS 31 Mar 2013

Install CentOS 31 Mar 2013

Installation steps for CentOS 6.4 01 Apr 2013


Hardware

Computer sound card connection and signal check 01 Jan 2015

Cat 5 power and signal cable 02 Jan 2015

Power supply CAD files 03 Jan 2015

2 Preamp Power Supply and GPS receiver 30 Jan 2015

Power supply and GPS schematic 04 Jan 2015

Antenna installation 31 Jan 2015

System Overview 04 May 2015

The E-field antenna hardware 06 Feb 2015

Complete preamplifier unit 07 Feb 2015

Preamp CAD files 09 Feb 2015

1 A VLF Electric Field Antenna System 10 Feb 2015

The aerial element for the electric field signal 05 Feb 2015

VLF Radio Receiver Hardware 16 May 2015

E-field VLF Preamplifier 10 Feb 2015


UltraMSK on Ubuntu

UltraMSK-1.1.4 for Ubuntu 01 Nov 2016


Portable VLF preamplifier

Camera tripod mounting 01 Nov 2016

Example configuration 02 Nov 2016

Enclosure 05 Nov 2016

Antenna and Cabling 04 Nov 2016

Spectrogram apps 03 Nov 2016

CAD files 05 Nov 2016

Assembled PCB 05 Nov 2016

A portable VLF preamplifier 06 Nov 2016

VLF amplifier schematic 06 Nov 2016