Hello friends,
Last week's experiments on VOA Radiogram were largely successful.
A good demonstration of the simultaneous decoding of text and an image can be seen in this video prepared by Oscar in Italy ....
http://voaradiogram.net/post/133719604758/oscar-in-italy-provided-this-video-of-the-voa
The simultaneous text/image transmission could be very useful for a
news organization, especially if one future software application can
decode both.
The QR codes were successfully scanned even if the image was not
completely crisp. Beyond a certain level of fuzziness, however, the QR
codes would not decode. See some examples here ...
http://voaradiogram.net/post/134055005357/qr-codes-transmitted-via-shortwave-then-scanned
The only advantage of the QR codes that I can think of is that
scanning the QR code is a slightly quicker way of accessing a web page
than copying and pasting the URL. The plain-text URL, however, enjoys
the advantage of error correction. Maybe future software
can open a selected URL in a browser.
If you tuned in last Sunday at 1930-2000 UTC on 15670 kHz,
trans-Atlantic shortwave propagation to Europe was generally very poor.
It was much better to western North America and surprisingly good in New
Zealand. See these examples ...
http://voaradiogram.net/post/134028333147/program-138-on-15670-khz-images-tell-the-story-of
Last Saturday's transmission at 0930-1000 UTC on 5865 did not reach
Europe, but it will, at least occasionally, around the winter solstice,
so keep trying. The 5865 kHz transmission did reach Western Australia,
as seen in these images sent by Frank in Perth
...
http://voaradiogram.net/post/134027418152/frank-in-perth-western-australia-sent-this
This weekend on VOA Radiogram, we will transmit two more QR codes,
smaller than the ones sent last week. Also, a VOA Turkish news story, so
have your Fldigi set for UTF-8.
Here is the lineup for VOA Radiogram, program 139, 28-29 November 2015, all in MFSK32 except where noted:
1:31 Program preview
3:10 New Shepard reusable rocket lands after launch*
7:55 Lasers used to cool water*
14:09 El Niño Brings Unexpected Fish to California*
19:30 News item from VOA Turkish Service**
22:45 Closing announcements*
26:05 Olivia 64-2000: Transmission schedule
* with image
** Requires UTF-8 for proper display of diacritics. In Fldigi:
Configure > Colors &Fonts > Rx/Tx Character set to UTF-8
Please send reception reports to radiogram@voanews.com .
VOA Radiogram transmission schedule
(all days and times UTC):
Sat 0930-1000 5865 kHz
Sat 1600-1630 17580 kHz
Sun 0230-0300 5745 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.
The Mighty KBC will transmit a minute of MFSK32
Sunday at 0130 UTC (Saturday 8:30 pm EST) on 7395 kHz, via Germany.
Reports for this KBC reception to Eric: themightykbc@gmail.com .
I am now preparing the MFSK image gallery from program 131 and will be responding to those reports this weekend.
I hope you can tune in and write in this weekend.
Kim
Kim Andrew Elliott
Producer and Presenter
VOA Radiogram
voaradiogram.net
