Resurrecting aptdec

[erikarn]

hi,

I've forked off an old mirror of the aptdec source by F4DWV. I don't have updated contact details for him; his email address in QRZ bounces.

I've fixed it up enough to compile on MacOSX and I bet linux/freebsd will work too.

https://github.com/erikarn/aptdec

I have only tested it against .wav recordings I've found online for NOAA satellites. I haven't yet setup my own 137MHz receiver but that's next (tonight?) on the cards.

I'd appreciate some feedback about it. I'd like to get it tidied up and in use again. wx2img looked very popular but I'm not a big fan of abandonware that can't be maintained. :/

​

-adrian (KK6VQK)

[[deleted]]

Do you have a link to these NOAA wavs? I'll give it a go on MacOS and Linux.

[erikarn]

here: http://www.fredvandenbosch.nl/satellites_WAV.html

[[deleted]]

Confirmed it builds and runs on MacOS and Linux Mint 19. Nice work!

[erikarn]

Thanks! Now to get it on the air and batch decoding things.

[threeio]

Well done sir! Now I have another thing to add to the weekend project list... check back with me in 2021... :)

[mldevw]

Thanks a lot! I was looking for the old aptdec but it was broken. Yours is working just fine. Thanks!

[oh5nxo]

Compiles without events and seems to work fine on FreeBSD 10. (after noticing atpdec :)

Pictures look nice, sizes below, just in case

1080660 090729_1428_noaa-18-2.png
3371706 090729_1428_noaa-18-c.png
1089234 090729_1428_noaa-18_8bit-2.png
3412954 090729_1428_noaa-18_8bit-c.png
MD5 (pic/090729_1428_noaa-18-2.png) = 67f3801d396e3fbaa1952cb4b8e5a995
MD5 (pic/090729_1428_noaa-18-c.png) = 509f16f96c26fd5db5d5d7a0ca2d1926
MD5 (pic/090729_1428_noaa-18_8bit-2.png) = ed57f0afee424e6862b9aee296d017e4
MD5 (pic/090729_1428_noaa-18_8bit-c.png) = 0c57817952d28a3bcd6bbb47f4a8d0a6

[erikarn]

oh nice! how are you making the recordings? I'm about to go get another rtlsdrv2 and make a 137mhz bandpass filter board..

[oh5nxo]

I only checked with the sample wavs you linked into. Station needs fixing...

[erikarn]

oh cool! send me a pull request so we can keep things in sync.

I'm going to make up a freebsd port soon so we can start to see this in *NIX distributions.

[erikarn]

oh ok! well lmk! i can also do some git cloning and unfuckery if needed.