My post from another board :
Posted: Mar 18, 2005 04:02:38
I use SeaTTY for NAVTEX and WEFAX.
This is excellent shareware and can generally be downloaded for free from the internet
, but has to be registered (bought) to continue with it after a few weeks. Run this on your on-board laptop coupled to your HF communications
receiver through an audio connection to your laptop's soundcard "Line In" jack. Set the soundcard's "Line In" setting to about 3/4 way up. (Any HF SSB, Ham radio
or Yachtboy, Sony, etc with good frequency readout will work. )
It has three modes of operation: RTTY, NAVTEX and HF FAX
and satellite images
can be received in HF FAX
NAVTEX works very well too.
Posted: Mar 19, 2005 06:29:58
You mention it works with a Ham radio.
Where can I find Ham Band freq's for Navtex/WeFAX charts
All I seem to find are marine
Sorry to be so 'stupid' but this is the only place on the net I can find where there is a confluence (and expertise) between 'Ham & marine'.
Posted: Mar 19, 2005 07:47:32
I think that was a general satement meaning HAM radio can also get the standard SSB channels. As far as I know NOAA fct are on standard channels. the following link is a great page on HF RADIO
& the second link is one buryed in that text that is a PDF doc that has ALL of the world wind
HF frequencies as well as little used FTP way of getting weather
fax so if you miss a broadcast you can still get the chart
Hope these sites help
Posted: Mar 23, 2005 06:45:48
Yes, Larry, that was what I meant. Sailors can also use their Ham radio (in addition to the emergency
Yachtboy, Sony etc.) to get the Navtex/WeFAX charts off the NOAA standard channels.
- Everyone else see Lhemmerich's posting
One additional note: It is imperative to hear the Navtex/WeFax signal off the radio - for tuning purposes, as well as feeding it into the laptop's soundcard.
I use a 1/8" jackplug splitter bought at RadioShack and a small external speaker also from RadioShack. (All maybe $15.00). Plug
the splittter into the radio's external speaker or earphone socket and feed both the external speaker and your laptop that way. Sometimes the 1/8" jackplug can be half pulled out to get the same effect, if you dont use a splitter and an external speaker.
SeaTTY has a nice filing feature which automaticallly files any received Navtexes and WeFAXes on your laptop as it receives them, so you dont have to be radioside to see the information. Just turn on the radio and the laptop at a few minutes before the transmission
(you will soon learn the times), tune in the signal by ear and by looking at the graph on the screen
, and go back on deck
to do what you do best, ie. sailing. The software will do it's thing. Be sure to enable the AFC (automatic frequency control) on the software as well.
Come back down later to view the charts.
If this posting
helped any, please post here or E-mail me.
Posted: Apr 27, 2005 06:21:21
Also real good Navtex, WeFax, HF SITOR software - free, but with a demo nag, if you don't register (buy) :