@swradiogram.bsky.social At least still an SNR of 6 dB in Western Australia, and likewise 6 dB SNR for the MFSK64 text in New Zealand (~15,000 km). ==> 305° Europe / 125° in the opposite direction. www.dropbox.com/scl/fi/6s2xp...
dropbox.com
@jollyrogermania.bsky.social
www.dropbox.com/scl/fi/n8wyc... Peter John's article, hidden as an inaudible data track within his own voice recording: tinyurl.com/42bpxzpr
@swradiogram.bsky.social Collage with a simple explanation of how color images are encoded in MFSK64. (Grayscale values 0-255 of the RGB color channels and their corresponding pitch) www.dropbox.com/scl/fi/kg01b...
@swradiogram.bsky.social www.rhci-online.net/radiogram/SW... QAM4: O=3 ok QAM16: O=4 ok QAM64: O=5 at least... I think, 7z corresponds roughly to the internal lz-html compression in EasyDRF.
@swradiogram.bsky.social KBC data from this weekend. The first part from friday, then there was a sudden modulation failure on 15770 kHz. The second part (SSTV) then from this night. www.dropbox.com/scl/fi/vxhqn...
@swradiogram.bsky.social And here is another picture regarding the transferred and decoded "RNEI-RRR16.html": www.dropbox.com/scl/fi/06f4z...
@swradiogram.bsky.social Here is a collage with further broadcast dates of a great music and data show: www.dropbox.com/scl/fi/u86o5...
@swradiogram.bsky.social KBC data from this morning: 2 x PD50 + 1 x BW12 = Σ net 112 seconds =>> gross 120 seconds www.dropbox.com/scl/fi/pu33a...
@swradiogram.bsky.social The QRM in the MFSK pic clearly originates from the SSTV sync-signals at 1200 Hz. Subsequent AF filtering has no effect. However, it can help if you completely mute the AF range of the SSTV tracks below 1100 Hz BEFORE mixup the data tracks. www.dropbox.com/scl/fi/ch30s...
dropbox.com