It has been several months
since we last transmitted slow scan television (SSTV) on VOA Radiogram.
Emiliano in Italy notes that the International Space Station has been using the
PD180 SSTV mode. He suggested that we compare PD180 SSTV images with our usual
MFSK32 images. And, so, we will do that this weekend.
To decode PD180, download
MMSSTV from http://hamsoft.ca/pages/mmsstv.php
. (In theory, MultiPSK also decodes PD180, although I have not yet successfully
decoded PD180 using MultiPSK.)
In the MMSSTV interface, under
RX Mode, right-click on any mode to reveal the complete list of modes. Left
click on the mode for it to appear in the main menu. "Auto" under RX Mode
should detect that PD180 is the mode, but to be safe, manually select PD180.
After the image is fully
decoded, you can right click on the image, then Copy it to MS Paint or other
program that lets you save images. Or, by clicking on MMSSTV's History, you can
use the left-right arrows to find the image you have decoded, then use the copy
icon, or right-click to copy.
Another twist in this weekend’s
show will be the transmission schedule in Olivia 64-2000 16 dB under the
closing music. That will be followed by the usual “thank you” message, also in
Olivia 64-2000, but at full level. The RSID will not be sent during the second
Olivia 64-2000 transmission, so if you missed it at
-16dB, set the mode
manually.
Here is the lineup for VOA
Radiogram, program 113, 30-31 May 2105, all in MFSK32 except where noted …
1:33 Program
preview
2:50 Science of nighttime
thunderstorms*
8:21 Plankton are a major
source of oxygen*
15:06 Volcano on
Galapagos
18:08 SSTV PD180
test
21:28 Same image (but
smaller) in MFSK32
25:11 Closing
announcements
26:12 Bonus mode: Olivia
64-2000 at -16dB
27
17 Olivia 64-2000 at full audio level
*
with image
Please send reception reports
to radiogram@voanews.com
.
(all days and times UTC):
Sat 0930-1000 5745 kHz
Sat 1600-1630 17870 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 MFSK64
Sunday at about 0230 UTC (Saturday 10:30 pm EDT) on 9925 kHz (via Germany). This
temporary time slot is one hour later than usual, and it coincides with the VOA
Radiogram broadcast at the same time. If you have only one radio, decode from
The Mighty KBC at 0230 UTC, then quickly retune to 5745 kHz for VOA Radiogram.
Reports for the KBC MFSK64 to Eric: themightykbc@gmail.com .
Thank you for your reports from
last weekend. I continue to be two weeks behind is responding to your emails,
but I will try to improve that to merely one week behind.
I hope you can tune in and
write this weekend.
Kim Andrew
Elliott
Producer and
PresenterVOA Radiogram
voaradiogram.net
