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�tf-8?q?Shortwave Radiogram, program 40, 24-25 March 2 �tf-8?q?018, all in MFSK32 except where not  View Printable Version 
Friday, March 23 2018

FinnishDX
Hello friends,

Most of Europe shifts to summer time on Sunday. The transmission schedule for Shortwave Radiogram remains at the same UTC times, so the broadcast will be one hour later by local time for most listeners in Europe. I am not aware of any frequency changes. However, The Mighty KBC transmission to North America Sunday 0000-0200 UTC (Saturday 8-10 pm EDT) will be on new 5960 kHz starting this weekend. The usual minute of MFSK32 will be at about 0130 UTC. IBC will also
have some schedule changes (see below).

Last weekend's experiment transmitting MFSK32 text and an image simultaneously went very well. So well, in fact, we will try it again this weekend. This time,I will not reduce the amplitude as much as last week. This might improve the text decode if you are receiving a poor signal. I hope it does not break a transmitter.

The picture and link at the top of this email illustrate the concept of concurrent text and image transmission. A very useful news consumption app, for PCs or for mobile devices, could be MFSK-only, simultaneously decoding text and images, showing one left and the other right, or one top and the other bottom. The app could be used on shortwave or any other radio band.

Also this weekend, we will transmit one news item in MFSK64. This is a faster mode (240 wpm) than our usual MFSK32. The MFSK64 image should exhibit higher resolution. Both the MFSK64 text and image might be subject to errors if the signal is less than good. If you are unable to decode the text, the original RFA story is here.

Here is the lineup for Shortwave Radiogram, program 40, 24-25 March 2018, all in MFSK32 except where noted:

1:35 Program preview
3:05 MFSK64: New "Voice of China" international media group*
10:53 MFSK32: Turkish Media Group to be sold to Erdogan ally**
15:26 SW transmitters for "secure digital communications"*
21:12 Start of spring brings winter weather to Washington DC*
26:39 Closing announcements

* with image(s)
** Image, centered on 2200 Hz, will be transmitted simultaneously with text. Run two instances of Fldigi, or record the broadcast and decode the image later. Another image will follow the text on 1500 Hz.
Please sendreception reports to radiogram@verizon.net

And visithttp://swradiogram.net
Twitter:@SWRadiogram
Facebookgroup: https://www.facebook.com/groups/567099476753304

Shortwave Radiogram Program 40 (24-25 March 2018)
Saturday
1600-1630 UTC 9400 kHz MFSK32,MFSK64 Space Line, Bulgaria
Sunday
2030-2100 UTC 7780 kHz 9455 kHz? WRMI Florida
Sunday
2330-2400 UTC 7780 kHz WRMI Florida
Monday
0800-0830 UTC 7730 kHz 5850 kHz WRMI Florida

The Mighty KBC transmits to Europe Saturdays at 1500-1600 UTC on 9400 kHz (via Bulgaria), with the minute of MFSK at about 1530 UTC (if you are outside of Europe, listen via websdr.ewi.utwente.nl:8901/ ). And to North America Sundays at 0000-0200 UTC (Saturday 8-10 pm EDT) on 5960 kHz, via Germany.The minute of MFSK is at about 0130 UTC. Reports to Eric: themightykbc@gmail.com . See also
http://www.kbcradio.eu/ and https://www.facebook.com/TheMightyKbc/.

Italian Broadcasting Corporation (IBC) For the complete IBC transmission schedule visit http://ibcradio.webs.com/ Five minutes of MFSK32 is at the end of the 30-minute English-language âShortwave Panorama,âper the schedule below:

Italian Broadcasting Corporation (IBC)
Broadcasts in English with MFSK32 during the last five minutes of each

Tuesday
0100-0230 UTC 5950, 7730 kHz Americas
Wednesday
2000-2030 UTC 5845, 6070 kHz Europe/Middle East/Asia
Friday
0100-0130 UTC 9955 kHz Americas
Friday
0230-0300 UTC 5985 kHz Americas
Saturday
0030-0100 UTC 9395 kHz Americas
Saturday
0130-0200 UTC 5850, 5950, 7780, 9455 kHz Americas
Sunday
0030-0100 UTC 7730 kHz Americas
Sunday
1130-1200 UTC 6070 kHz Europe (25 March only)

Thanks for your reception reports!

Kim via KKX

Kim Andrew Elliott, KD9XB
Producer and Presenter
Shortwave Radiogram
Reporting on international broadcasting at https://twitter.com/kaedotcom


 

Shortwave Radiogram, program 39, 17-18 March 2018, all in MFSK32:  View Printable Version 
Friday, March 16 2018

FinnishDX
Hello friends,

For the summer, Shortwave Radiogram remains at the same UTC times. In North America, where daylight time is observed, the broadcasts are one hour ahead by local time, e.g. Sunday 4:30 and 7:30 pm and Monday 4:00 am EDT. (Summer time begins 25 March in Europe.)

Last week's experiment with MFSK32 images transmitted at half speed, designed by Mark Braunstein WA4KFZ, produced interesting results. There were several examples of the half-speed images, decoded at full speed, providing higher quality images, as predicted. (See, hear, and decode one example.) In some cases, usually when the full speed image was good to begin with, any differences were not detectable.

The results could be biased by the signal improving or deteriorating from the time of the full-speed transmission to that of the half-speed transmission. We can correct for that (and probably will in a future broadcast) by transmitting both at the same time but at different center frequencies.

This weekend we will try something similar: text and an image transmitted concurrently but at different center audio frequencies. The text will be broadcast at the usual 1500 Hz. The image will be transmitted centered on 2200 Hz.

(The text transmission is on your spectrum from about 1250 to 1750 Hz. On the waterfall, sometimes you will see the second harmonic of the text transmission,which is from 2500 to 3500 Hz. The frequency of 2200 Hz is used for the image because its trace from 1950 to 2450 Hz completely escapes any interference from that second harmonic.)

You can decode the text and image simultaneously by running two instances of Fldigi. Or record the broadcast and decode the image later.

There will be no RSID transmitted at the beginning of the image on 2200 Hz.However, there will be a 15-second tuning signal to help you set Fldigi to the correct center frequency. The tuning signal begins at 12 minutes, 44 seconds into the broadcast.

Because transmitting both text and an image increases the amplitude of the audio, I reduce it during the dual transmission to reduce the chance of breaking a transmitter. If your text decode is not as good during the dual transmission,please let me know.

The image will also be transmitted as usual on the usual 1500 Hz center frequency after the text of the news item about (appropriately enough) noise pollution.

Here is the lineup for Shortwave Radiogram, program 39, 17-18 March 2018, all in MFSK32:

1:32 Program preview
3:26 Urban mining to reuse materials*
12:14 Polluting the world with noise**
20:39 Chinese lunar satellites will include amateur radio*
27:04 Closing announcements

* with image
** with the image at 2200 Hz and again after the text at 1500 Hz
Please send reception reports to radiogram@verizon.net
And visit http://swradiogram.net
Twitter:@SWRadiogram
Facebookgroup: https://www.facebook.com/groups/567099476753304

Shortwave Radiogram Program 39 (17-18 March 2018)
Saturday
1600-1630 UTC 9400 kHz MFSK32 Space Line, Bulgaria
Sunday
2030-2100 UTC 7780 kHz WRMI Florida
Sunday
2330-2400 UTC 7780 kHz WRMI Florida
Monday
0800-0830 UTC 7730 kHz 5850 kHz WRMI Florida

The Mighty KBC transmits to Europe Saturdays at 1500-1600 UTC on 9400 kHz (via Bulgaria), with the minute of MFSK at about 1530 UTC (if you are outside of Europe, listen via websdr.ewi.utwente.nl:8901/ ). And to North America Sundays at 0000-0200 UTC (Saturday 7-9 pm EST) on 6150 kHz, via Germany.The minute of MFSK is at about 0130 UTC. Reports to Eric: themightykbc@gmail.com . See also
http://www.kbcradio.eu/ and https://www.facebook.com/TheMightyKbc/.


Italian Broadcasting Corporation (IBC) For the complete IBC transmission schedule visit http://ibcradio.webs.com/ Five minutes of MFSK32 is at the end of the 30-minute English-language âShortwave Panorama,âper the schedule below

Wednesday
2025-2030 UTC 5845 kHz Europe, Middle East, Asia
Tuesday
0125-0130 UTC 5950, 11580 kHz Americas
Friday
0225-0230 UTC 9955 kHz Americas
Friday
0255-0300 UTC 5985 kHz Americas
Saturday
0155-0200 UTC 5850, 5950, 9395, 9455 kHz Americas
Sunday
0055-0100 UTC 7730 kHz Americas
Sunday
1155-1200 UTC 6070 kHz Europe

Thanks for your reception reports!

Kim via KKX

Kim Andrew Elliott, KD9XB
Producer and Presenter
Shortwave Radiogram
Reporting oninternational broadcasting at https://twitter.com/kaedotcom


 

�tf-8?q?Shortwave Radiogram, program 38, 10-11 March 2 �tf-8?q?018, all in MFSK32 (but with on  View Printable Version 
Friday, March 09 2018

FinnishDX
Hello friends,
As I was typing last week's edition of this email, the lights in my house were flickering because of the high winds on 2 March. I knew I had to work fast:adding new names to the mailing list, then sending the email three times, each with a third of the mailing list, and finally uploading the Shortwave Radiogram audio to Bulgaria and to WRMI. All of that was finished just before the lights went out at 6:00 am. (Actually, I was on the UPS.) Power was not restored until
about 7:00 pm.
But my internet connection was not restored at that time. The Verizon fiber optic lines were victims of falling trees a few blocks away. Internet did not return until Sunday at about 3:00 pm. Because of this, I was not able to send my usual Twitter reminders and retweets of listeners' images, at least for the Saturday 1600 UTC show.
And I was not able to attend the Winter SWL Fest because of poor conditions on I-95 up to Philadelphia. Sorry that I was not able to see some of you at that event.
Videos: BacardeSan in Mississippi produced an amazing video showing his simultaneous reception of 5850 and 7730 kHz, from WRMI Florida, Monday at 0800-0830 UTC. He used a single RTL_SDR and GQRX software. You won't be able to decode from his audio because the two frequencies were about about 400ms apart: https://youtu.be/E1tY4qGJkTE

Black Apple 62 in Italy provided this video of reception Saturday at 1600-1630 UTC on 9400 kHz from Bulgaria:
https://youtu.be/-j0Su_lBzZE
And Scott in Ontario produced this video of the Sunday 2330-2400 UTC broadcast on 7780 kHz: https://youtu.be/aMgET0jWfaA

MFSK image experiment

This weekend's Shortwave Radiogram will include an MFSK32 image transmitted at normal speed. It will then be transmitted at half speed, to be recorded then played back at double speed. Is the quality of the latter image better?

You can use Audacity to record and change the speed of the transmitted audio. (Effect > Change Speed > Percent Change: 100.0) Other audio editors are also available. Sometimes it is tricky to transfer audio from one application to another inside a PC. A virtual audio cable such as VB Cable might help. Details of the experiment are in the attached pdf prepared by Mark Braunstein,WA4KFZ.
Here is the lineup for Shortwave Radiogram, program 38, 10-11 March 2018, all in MFSK32 (but with one item slowed down):

1:36 Program preview
2:44 Clocks in Europe affected by power grid irregularities*
11:16 Odd and amazing cyclones at Jupiter's poles*
16:53 Goodyear's photosynthesizing concept tire*
22:16 MFSK image enhancement experiment*
25:00 Closing announcements

* with image(s)
Please sendreception reports to radiogram@verizon.net
And visithttp://swradiogram.net
Twitter:@SWRadiogram
Facebookgroup: https://www.facebook.com/groups/567099476753304

Shortwave Radiogram Program 38 (10-11 March 2018)
Saturday
1600-1630 UTC 9400 kHz MFSK32 Space Line, Bulgaria
Sunday
2030-2100 UTC 7780 kHz WRMI Florida
Sunday
2330-2400 UTC 7780 kHz WRMI Florida
Monday
0800-0830 UTC 7730 kHz 5850 kHz WRMI Florida

The Mighty KBC transmits to Europe Saturdays at 1500-1600 UTC on 9400 kHz (via Bulgaria), with the minute of MFSK at about 1530 UTC (if you are outside of Europe, listen via websdr.ewi.utwente.nl:8901/ ). And to NorthAmerica Sundays at 0000-0200 UTC (Saturday 7-9 pm EST) on 6150 kHz, via Germany.The minute of MFSK is at about 0130 UTC. Reports to Eric: themightykbc@gmail.com . See also
http://www.kbcradio.eu/ and https://www.facebook.com/TheMightyKbc/.
Italian Broadcasting Corporation (IBC) For the complete IBC transmission schedule visit http://ibcradio.webs.com/ Five minutes of MFSK32 is at the end of the 30-minute English-language âShortwave Panorama,âper the schedule below:

Wednesday
2025-2030 UTC 5845 kHz Europe, Middle East, Asia
Tuesday
0125-0130 UTC 5950, 11580 kHz Americas
Friday
0225-0230 UTC 9955 kHz Americas
Friday
0255-0300 UTC 5985 kHz Americas
Saturday
0155-0200 UTC 5850, 5950, 9395, 9455 kHz Americas
Sunday
0055-0100 UTC 7730 kHz Americas
Sunday
1155-1200 UTC 6070 kHz Europe

Thanks for your reception reports!

Kim via KKX

Kim Andrew Elliott, KD9XB
Producer and Presenter
Shortwave Radiogram
Reporting oninternational broadcasting at https://twitter.com/kaedotcom


 

Shortwave Radiogram, program 37, 3-4 March 2018, all in MFSK32:  View Printable Version 
Friday, March 02 2018

FinnishDX
Hello Friends,
I might need a radio like Jeremy's (above). As I type this at 0811 UTC, the wind is howling. Gusts later today are forecast to reach 70 mph (112 km/h). I was planning to drive up I-95 later this morning to attend the Winter SWL Fest, but now I'm not so sure. I hope our power does not fail before I finish this email.

We will try some experiments later in March. For this weekend we will keep it simple with an all MFSK32 show. It includes some interesting news items from VOA and Deutsche Welle.

Here is the lineup for Shortwave Radiogram, program 37, 3-4 March 2018, all in MFSK32:

1:28 Program preview
2:30 Researchers make wood stronger than steel*
8:17 Europe's new-generation flexible satellite*
16:42 The death of diesel?*
24:40 Image* and closing announcements

* with image
Please send reception reports to radiogram@verizon.net
And visit http://swradiogram.net
Twitter:@SWRadiogram
Facebookgroup: https://www.facebook.com/groups/567099476753304


Shortwave Radiogram Program 37 (3-4 March 2018)
Saturday
1600-1630 UTC 9400 kHz MFSK32 Space Line, Bulgaria
Sunday
2030-2100 UTC 7780 kHz WRMI Florida
Sunday
2330-2400 UTC 7780 kHz WRMI Florida
Monday
0800-0830 UTC 7730 kHz 5850 kHz WRMI Florida

The Mighty KBC transmits to Europe Saturdays at 1500-1600 UTC on 9400 kHz (via Bulgaria), with theminute of MFSK at about 1530 UTC (if you are outside of Europe, listen via websdr.ewi.utwente.nl:8901/ ). And to North America Sundays at 0000-0200 UTC (Saturday 7-9 pm EST) on 6150 kHz, via Germany.The minute of MFSK is at about 0130 UTC. Reports to Eric: themightykbc@gmail.com . See also
http://www.kbcradio.eu/ and https://www.facebook.com/TheMightyKbc/.

Italian Broadcasting Corporation (IBC) For the complete IBC transmission schedule visit http://ibcradio.webs.com/ Five minutes of MFSK32 is at the end of the 30-minute English-language âShortwave Panorama,âper the schedule below:

Wednesday
2025-2030 UTC 5845 kHz Europe, Middle East, Asia
Tuesday
0125-0130 UTC 5950, 11580 kHz Americas
Friday
0225-0230 UTC 9955 kHz Americas
Friday
0255-0300 UTC 5985 kHz Americas
Saturday
0155-0200 UTC 5850, 5950, 9395, 9455 kHz Americas
Sunday
0055-0100 UTC 7730 kHz Americas
Sunday
1155-1200 UTC 6070 kHz Europe

Thanks for your reception reports!

Kim via KKX

Kim Andrew Elliott, KD9XB
Producer and Presenter
Shortwave Radiogram
Reporting on international broadcasting at https://twitter.com/kaedotcom


 

�tf-8?b?T2xpa28gbWludWxsZSBuw6RreW3DpHTDtm4gc2l2dSB0w6Rt �tf-8?b?w6QuLi4=  View Printable Version 
Saturday, February 24 2018

FinnishDX
http://www.hard-core-dx.com/article.php?story=20180217221505327&mode=print

yt
kkx


 

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