Hi Bob,

I’m not aware of any plugins or utility within SDR Console that will allow direct decoding of NAVTEX.  For that matter, I ‘m not aware of any NAVTEX plugins for any of the other popular SDR programs (e.g., SDRSharp, SDR++, HDSDR, SDRUno). 

Your best bet will be to use YaND and install a virtual audio cable program to “pipe” the audio from SDR Console into  YaND.  Actually, any software program that can decode SITOR-B (Simplex Teletype Over Radio) will produce decoding and display of the messages.  Some candidate software product are MultiPSK and fldigi.  Like YaND, you have to “pipe” the audio from the SDR software program into the digital decoder program.  Here’s a link to various NAVTEX decoders:

https://www.dxzone.com/catalog/Software/Navtex/

YaND is by far the more elegant program for decoding NAVTEX.  Although the others will produce text, that’s all you get.  The beauty of YaND is it contains all of the information about the NAVTEX stations across the world, logging capabilities, and more.  The other programs will just give you a readout of the decoded text.  YaND is my go-to program for decoding NAVTEX.  Also, with a good virtual audio program, you can “pipe” the audio into different software decoders at the same time.  I’ve done so with YaND and fldigi, as there have been a few times when fldigi seems to handle noise a little better and produced better decodes in certain situations.  Having said that I still use YaND for 95% of my NAVTEX decoding.

Good luck with your efforts.  I know you’ve been experiencing problems getting the Boston NAVTEX station (actually on Cape Cod) directly  with your Icom R8600, so until you solve your antenna and/or RFI noise problems, I don’t think YaND or any other software program will provide you a success path for NAVTEX reception.

Ken