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Shortwave Radiogram, 10-13 October 2019

Thanks to Al in Florida, WD4AH, @WD4AK_Al , for moderating the @SWRadiogram Twitter account and helping with transmission tasks, 26 September-6 October, while my wife and I were in eastern Canada and Maine for a vacation. A video of program 119 (26-29 September 2019) is provided by Scott in Ontario (Friday 1300-1330 UTC). The audio archive is maintained by Mark …

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Shortwave Radiogram,  26-29 Sept and 3-6 Oct 2019

This email will provide the preview for this weekend  (26-29 September) and the following weekend (3-6 October 2019). Here is the lineup for Shortwave Radiogram, program 119,  26-29 September 2019, in MFSK modes as noted:  1:37  MFSK32: Program preview  2:41  Festival of Frequency Measurement honors WWV centennial*  6:48  MFSK64: MIT engineers produce blackest material* 11:47  This week’s images* 27:09  MFSK32: …

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Shortwave Radiogram, 12-15 September 2019

  Last weekend’s hidden message in Thor Micro at 70 Hz was mostly successful. This weekend, it was my intention to try Throb 1, another very narrow mode, also at 70 Hz, but I could not get a decode from the recording. It seems that Throb 1 does not like the very low audio frequencies. Our hidden message will be …

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Shortwave Radiogram,  5-8 September 2019

We are happy to know that WRMI in Okeechobee, Florida, was spared a direct hit by Hurricane Dorian. The Shortwave Radiogram schedule should, therefore, proceed as normal. WRMI was not entirely unscathed, having experienced some internet disruptions. Good luck to those still in the path of Dorian. Last week’s hidden message exercise, with BPSK63F at 95, 85, 75 and 65 …

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Shortwave Radiogram, 29 August-1 September

Please note the  new “winter” frequency, 5960 kHz, for The Mighty KBC. The schedule is below. Hurricane Dorian may be an issue this weekend. It is expected to hit somewhere in Florida on Monday. However, on Sunday, winds in the outer bands of the storm may start to affect operations at WRMI in Okeechobee, Florida. Let’s hope that WRMI does …

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Shortwave Radiogram, 22-25 August 2019

Our “hidden message” last week in the PSK125R mode was not as successful as the BPSK63F two weeks previously. Because the PSK125R is a wider mode, I had to put it as low as possible to prevent it from being audible. This put the lower part of the PSK125R right up against the carrier, and too low for many receivers …

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DRM newsletter august 2019

The DRM for FM test and demonstration in St Petersburg is going on and the reports are that the quality of the audio is excellent, to the delight of the organisers and Consortium participants (RFmondial, Fraunhofer IIs, NXP and Gospell). The Gospell receiver has also announced a new firmware update for its DRM30 receiver and its capacity to present text …

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Special DRM shortwave transmissions are being planned for the special meeting of HFCC to be held in Buenos Aires, Argentina, 26-29 August. They will be broadcast by Encompass Digital Media Services 16.00-17.00 UTC on 21630 kHz from Ascension Island on a bearing of 245 degrees. On each of the 4 days the content will be supplied by a different broadcaster: …

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Shortwave Radiogram, 15-18 August 2019

Many thanks to Mike Agner, KA1JJZ, @MakeAgner, who has prepared two very good wikis on how to decode the modes on Shortwave Radiogram. This one deals with decoding on PCs … And this is for users of TIVAR on Android devices … As always, wikis are works in progress, so if you have suggestions for additional information, please …

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Shortwave Radiogram, 8-11 August 2019

Last weekend, Shortwave Radiogram included a brief “hidden message” during the closing music. It was in the BPSK63F mode, centered on 50 Hz. At that very low audio frequency, it was not audible. I did not publicize this message last week, because I was not sure that data at such a low audio frequency would actually be pass through the …

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Shortwave Radiogram, 1-4 August 2019

There were not very many responses last week to my question about whether you prefer “natural” line wrapping versus the CR/LF that I usually put at column 65 (or less). But the answers I did get favored the line breaks at 65. We will try it again this weekend: Natural wrapping in the MFSK32 news item (Ethiopia trees), and the …

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Shortwave Radiogram, 25-28 July 2019

Unless I am interrupted by some urgent task, this email should reach you on time, i.e. before the first broadcast of Shortwave Radiogram Thursday at 2330 UTC. Which is an improvement over the late emails during the past two weeks. I usually produce Shortwave Radiogram with a CR/LF (carriage return/line feed) at column 65, meaning each line has no more …

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