For electronics and android experts...

[pandos]

There is another thread closely related to this subject...SW Hf ssb etc...

Afaik a software defined radio like this one Amazon.com: Nooelec NESDR Smart v4 SDR - Premium RTL-SDR w/ Aluminum Enclosure, 0.5PPM TCXO, SMA Input. RTL2832U & R820T2-Based Software Defined Radio: Computers & Accessories

Could receive a signal from navtex or weatherfaxes...

In turn the audio signal is played into some software on a tablet and the text /weather map is then displayed...

Is there any way that one of these could be used on the same tablet to turn that tablet into a weatherfax/navtex receiver as well as continuing to do all of the other things a tablet can do.?.

I have in mind an android radio that will be fitted soon....?

 

[TernVI]

In theory, yes.
In practice, the android world will try to flog you an app that doesn't really work, while blasting you with adverts.

You might do better to look more towards the open source community.

 

[KompetentKrew]

I've been meaning to play with this kind of SDR, ideally to download NOAA wesat images.

I think it would be inconvenient to have the decoding done on a tablet, as you'd have to leave the tablet tethered (via the USB cable to the SDR) to the aerial the whole time it's decoding.

I would get the SDR running on a Raspberry Pi and try to automate the decodes - the "downloads" folder can be shared by Samba or you could automate it to offer new files to any bluetooth devices in range.

 

[GHA]

I've been meaning to play with this kind of SDR, ideally to download NOAA wesat images.

I think it would be inconvenient to have the decoding done on a tablet, as you'd have to leave the tablet tethered (via the USB cable to the SDR) to the aerial the whole time it's decoding.

I would get the SDR running on a Raspberry Pi and try to automate the decodes - the "downloads" folder can be shared by Samba or you could automate it to offer new files to any bluetooth devices in range.

Much better plan imho.
I've had a rasp pi auto download wfaxes before and save as a wav file then did some tweaking to the bit rate etc so jvcom could decode them. All done with SOX iirc. Node red makes most of the process invisable. Results were pretty good though that was with a good quality fun cube dongle Pro plus USB receiver, those little rtl dongles are fun but not that great really, with the added cost of an upconverter to get them to tune to wfax frequencies you'll be well on the way to a decent SSB standalone receiver.

 

[pandos]

Thanks for the replies...much of the lingo is greek to me but I do understand the thrust of the replies and especially the last part of #4.

I might write to Santa for one....

 

[tudorsailor]

If you want to start experimenting there is a web SDR (software defined radio) that allows you to "receive" weather fax on the internet once you "tune" to the right station
It is here http://websdr.ewi.utwente.nl:8901/

If you want to decode the signal on an Android device you should try BlackCat HF Weather Fax Marine Radio Fascimile Decoder App For Android I have successful decoded weather fax using the above but on my PC rather than Android.

In fact I made a little tutorial for a friend on how to do it

TudorSailor

 

[pandos]

Thanks I'll have a look at that during the week...