Im not sure if this model is NAVTEX - text messaging of weather info via High Frequency Radio or WeFAX ... broadcast of modulated NOAA etc. weather charts via 'fax'.
Go to WeFax.de .... this is probably the 'worlds source' for most WeFAX (some NAVTEX) info.
Youll probably be able to locate your 'instructions' on or from references on this site.
If not, most Wefax Receivers are operated in 'gray' (satelite imaging) or 'line mode' (charts) based on whats being broadcast and you must align the receiver speed with the broadcast speed ..... 576 or 240 is most common. If you have a Mac or PC and this receiver is a WeFAX capable you can obtain software that can translate/demodulate the broadcast FAX charts such as what you see on:
http://www.opc.ncep.noaa.gov/index.php (click on "Atlantic" in the first screen page).
Most WeFax in the E. USA is heard on about 9.11 Mhz USB .... out of Boston.
Other broadcast schedules:
http://weather.noaa.gov/fax/gulf.shtml#SCHED .... New Orleans, etc.
Most WeFAx is broadcast seemingly from 'vertical polarized' antennas .... so at a minimum youll find getting that 'long wire' antenna as high and as close to vertically aligned (straight up) will usually get best reception. If you you use the antenna in a more horizontal mode, the broadcast station youre interested should be a near 'right angles' to the long axis of the wire ... off to the side of the long wire; therefore, youll need some idea the direction and location of the broadcast station, for 'best' reception.
On board such a long wire antenna used for receiving can be run up the backstay or cap shroud using a halyard, etc. ... as high and 'straight' as possible.
In N. America, Navtex is used more predominantly in the 'north' or 'mid ocean' (little 'mid latitude' info), or when WeFAX is unobtainable, more common in the EU, etc. WeFAX is now more common than NavTEX.
WeFAX is giving way to 'grib files' via SSB/HF radio with PACTOR modems and now direct satellite reception..
This radio (do search on eBAY, etc.) 'looks' more NAVTEX than WeFAX although it 'may' be WeFAX capable with the proper software, PC/Mac, and an audio 'patch cord'.
:^)))))))
