SailNet Community - View Single Post - Weatherfax audio file for testing
View Single Post
Old 03-13-2013
RichH's Avatar
RichH RichH is offline
Senior Member
Join Date: Jul 2000
Location: Pennsylvania
Posts: 3,293
Thanks: 21
Thanked 130 Times in 120 Posts
Rep Power: 15
RichH will become famous soon enough
Re: Weatherfax audio file for testing

Originally Posted by SVAuspicious View Post
Wefax is transmitted as FSK. Most mariners receive it using SSB (usually USB) which is why the seminal reference rfax.pdf reminds you to offset the tuning frequency by 1900 Hz. If you use LSB you'll need software that can invert the tones.
Oops sorry, dame bramage ... indeed most WeFax is broadcast on Upper Side Band (FSK).

Here's the 'mother of all WeFax' websites on the net, including discussions on smart phones, tablets, etc. etc. History

Using a simple audio patch cord between the radio (simple portable 'Short Wave' with AM/USB/LSB/CW or HF/SSB) and a PC and using simple/fairly inexpensive programs will get you WeFax out at sea. I use a simple audio patch from my SSB (or portable SW receiver) into a Mac using "multi-mode" as the software for WeFax and marine TTY - MultiMode - CW RTTY SSTV FAX MORSE PSK31 ACARS SITOR AMTOR ALE DTMF FFT ASCII Decoding Software for the Macintosh
Reply With Quote Share with Facebook