[A-DX] VOA Radiogram, 16-17 May 2015 includes news in MT63-2000L

[Roger]

Am 15.05.2015 um 16:47 schrieb VOA Radiogram:
>
> Hello friends,
>
> After the MT63-2000L bonus mode of program 108, Walt in the UK 
> suggested that we transmit an entire news story in this mode. That 
> will happen this weekend. This long-interleave version uses the entire 
> 2000 Hz we have available in one sideband of a shortwave AM channel. I 
> have measured its speed at nearly 200 words per minute, about twice as 
> fast as our usual MFSK32 mode.
>

2015-05-16 / 16.00z VoA on 17870 kHz:  O=3,   fading,
                                  MT63-2000L  did not work, the audio 
level was too low, thus a lot of errors,    but clean signal, so the 
MFSK-32 images were acceptable


2015-05-17 / 02.30z VoA on   5745 kHz:  O=4,   no fading
                                  Audio signal was strong and loud, but 
ghost signal by frequency-shift-scatter
                                  MT63 worked well with no errors, but 
the MFSK images with "ghost shadows"

http://www.rhci-online.net/radiogram/VoA_Radiogram_2015-05-16.htm




roger