Showing posts with label Kim. Show all posts
Showing posts with label Kim. Show all posts

Tuesday, July 7, 2020

The "High-Frequency Parties" return!

You might remember our previous input on SWBC matters several years back. Now, with this pending application containing potentially "spurious emissions", we have decided to say our piece. We are known as the High-Frequency Parties, consisting of Benn Kobb, Dr. Kim Andrew Elliott and myself, Christopher Rumbaugh.

We're filing an objection with the FCC to an application for International Broadcast Station being proposed in Illinois. Do we want and support DRM? Of Course we do! Do we believe that latency arbitrage in International Shortwave Broadcast Bands is a deleterious intruder? You bet your sweet bippy we do! Read our take here.

Once again, antiquated rules are hindering radio technologies. In this case, latency arbitrage is certainly a reasonable use of radio waves - but it does not belong in-band with International Broadcast stations. International Broadcast bands are global-village shared public resources for the promotion of culture, ideas and mutual understanding - not encrypted financial trading data.

UPDATE 20200708 1830 UTC : Here is an article in Radioworld on the "High-Frequency Parties" objection filing.

Thursday, May 10, 2018

Kim and SWRadiogram at NASB 2018!

Received Today from Dr. Kim Andrew Elliott. I will be hanging out with him and the NASB crew this next week. He's got special treats planned - see below!


Hello friends,


This email will provide information on the broadcasts for the next two weekends (47 and 48)

A special broadcast of Program 48 will be a demonstration of Shortwave Radiogram for the meeting of the National Association of Shortwave Broadcasters (NASB), this year hosted by SonSet Solutions in Elkhart, Indiana. Reception of Shortwave Radiogram will be on a SonSet radio, an inexpensive receiver designed for use in developing countries. Using an antenna on the roof of the steel warehouse building, replete with electronic equipment in operation, the signal will somehow be fed to the SonSet radio, and the modes will be decoded from what is received. What could possibly go wrong?

If for some reason an adequate signal does not reach the SonSet radio, Plan B will be to use audio on an mp3 recorded from program 47, using an SDR somewhere. For this reason, programs 47 and 48 have similar formats, but the content is different. Both shows will include slow modes, suitable for poor reception, such as on low-cost radios inside a steel building. And there will be some text in non-Latin alphabets.

For logistics reasons, the first transmission of program 48 will be moved up to 0800 UTC on 14 May.  To compensate for program 47 being bumped from the 0800 slot, program 47 will be broadcast at 0800 on  21 May. See this schedule chart ...



Program
No.
Day
May
date
UTC time
Frequency
kHz
Transmitter
47
Friday
11
2030-2100
7780
9455
WRMI Florida
47
Saturday
12
1600-1630
9400
Space Line Bulgaria
47
Sunday
13
2330-2400
7780
WRMI Florida
48
Monday
14
0800-0830
5850
7730
WRMI Florida
48
Wednesday
16
2100-2130
9395*
WRMI Florida
48
Thursday
17
2030-2100
9395*
WRMI Florida
48
Friday
18
2030-2100
7780
9455
WRMI Florida
48
Saturday
19
1600-1630
9400
Space Line Bulgaria
48
Sunday
20
2330-2400
7780
WRMI Florida
47
Monday
21
0800-0830
5850
7730
WRMI Florida
 
*Special for the National Association of Shortwave Broadcasters meeting in Elkhart, Indiana, 17 May at 2030 UTC. The transmission on 16 May at 2100 UTC is to test the receiving and decoding equipment and software. Listeners everywhere are invited to tune in to one or both of these transmissions.

Here is the lineup for Shortwave Radiogram, program 47, 11-13 and 21 May 2018, in modes as noted:

 1:34  MFSK32: Program preview
 3:09  Olivia 64-2000: Supervolcanoes have advance warnings
 7:10  Olivia 32-2000**: Continued
10:15  MFSK16: Text samples of Russian, Chinese, and Persian***
17:03  MFSK32: Australia invests in space agency*
21:30  MFSK64: President Macron visits New Caledonia*
26:23  Image: Railroad on 10th Street in New York City, 1910*
27:56  MFSK32: Closing announcements



Here is the lineup for Shortwave Radiogram, program 48, 14-20 May 2018, in modes as noted:

 1:33  MFSK32: Program preview
 3:11  Olivia 64-2000: Mercury has thin but dense crust
 6:49  Olivia 32-2000**: Continued
 9:37  MFSK16: Text samples of Russian, Chinese, and Persian***
16:42  MFSK32: New solar still purified water*
20:29  MFSK64: South Georgia declared rodent-free*
25:13  Greetings to the NASB meeting*
27:43  MFSK32: Closing announcements

* with image

** Use Olivia Custom setting: 32 tones, 2000 Hz bandwidth

*** Use UTF-8 character set (default in TIVAR and newer versions
of Fldigi)

Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

Twitter: @SWRadiogram or https://twitter.com/swradiogram (check frequently during weekends)

Sunday, November 30, 2014

Non DRM digital fun

STF Radio has hit the air with a bold experiment. Carried by WRMI lastnight, several hours of digitalmodes, waterfall painting, ASCII art and music. Check out this reception from a digital fan in Europe.

Not DRM but fun for the digital enthusiast. I can't help but think that Dr. Elliott's experiments with VOA Radiogram paved the way for these gents! Fldigi is the recommended decoder.

Sunday, May 18, 2014

NASB 2014 recap for the digital enthusiast


Here is a brief recap of the NASB 2014 conference from the point of a DRM enthusiast.

On the first morning, standing in front of me in line for the van was a founding DRMNA member - Zyg from Georgia. It was so great to meet him in-person for the first time, having corresponded for nearly 10 years over DRMRX and DRMNA!  We had a fine time chatting throughout the conference.
After a 15 minute ride, we began to see what we came for -  the VOA antenna field...a sight/site to behold! It reminded me of seeing VOA Delano and KGEI in Redwood City, in my youth.
Turning from the highway onto the site, the situation became plain - this is an amazing antenna field. We continued past curtain after curtain of TCI antennas.





We then arrived at the Edward R. Murrow Transmitting Station. The building alone has that great cold-war look and with old glory flying high in the brisk North Carolina breeze.





We were dropped off at the steps and made our way into the facility. The building maintenance was impeccable and the staff were welcoming and charming. They offered us coffee and ushered us up to the conference room. After a brief introduction by VOA host Rick Williford and NASB president Brady Murray, came some words from Secretary Jeff White. We then headed back down and split into groups to tour the transitter plant and an antenna field that was not “hot” with an active broadcast. 
Macon Dail, Chief Engineer at the facility was our guide, and an excellent one at that. He is very knowledgeable and his willingness to take questions of all kinds, made everyone feel comfortable.
Standing under the immense antennas was a dream come true for me, and something I never thought would happen. 



As you might imagine, the "radio geek" in us all was obvious. Mark Allen of Rohn Towers and I couldn't get enough of the TCI curtains!






After several stops and standing under a variety of the antenna types in the field, we returned to the building to switch  to our tour of the transmitter facility. Macon walked us down the hall with the “authorized personnel only” sign and into the inner-sanctum of the station past walls of GE, Continental and various other transmitters. Macon noted several that were currently on-air. Unfortunately with the current governmental budget constraints, broadcast hours at the station have been significantly reduced. At the time, several programs for Cuba were on-air.  

We went into the central room were the master controls for the transmitters and antennas are monitored. It is a really neat place, reminiscent of the bridge of the Starship Enterprise!

Afterwards, we settled back into the conference room for our sessions. There was a great variety of topics, but I will only highlight the DRM and digital related sessions (of course this means I'm leaving out many excellent talks that didn't relate strictly to digital or DRM).

First up was Dr. Kim Andrew Elliott with an update on his work with VOA Radiogram. You might recall that yours truly is a proponent of this novel technique and has written several articles and opinions to that regard. He demonstrated the format live, including text and images. 

 


VOA has now transmitted the program for over a year with 100 or more listener responses weekly, from all corners of the globe. What remains remarkable is the quality of reception (chiefly using the MFSK32 mode) both inside and outside the intended target areas. Clearly, this service extends the reach of the existing transmitters, and does so without modifications or specialized receivers.

We also heard from a newer (lets call it "resurrected") station on shortwave - KVOH in California. In attendance were Rev. John Tayloe and Ray Robinson. They are interested in expanding their broadcasts with DRM in the future. Once again, their concern is the availability of receivers.


KTWR in Guam sent the very capable George Ross to talk about their exciting experiments with DRM. George had comments about what great success they are seeing in broadcasting DRM to Japan. Their listener response from there has been amazing. I really like what they are doing - transmitting quality music in stereo, to show off what DRM can do! 


Calvin Carter of Continental Electronics delivered the latest word from the DRM Consortium. DRM is beginning to make great strides in areas of Asia. Calvin had a slideshow, pointing out recent highlights - particularly regarding plans for India and information about new Indian made receivers, that should be available soon. These are in response to the AIR DRM receiver tender.


I presented the history of this blog, the DRMNA Yahoo Group and my experiences with DRM over the last ten years. I have you all to thank for our success. I was flattered and proud to be able to present about such an excellent group of enthusiasts.



[Christopher, George and Calvin - the "Three Musketeers of DRM" at NASB 2014]

There were a few things that would have made the conference perfect - well a few people perhaps... Particularly conspicuous by their absence were Brendan and Benn, to name a few. We missed you guys!

Overall, there were only a handful of us “strictly enthusiasts” in attendance. NASB would really like to have more of us in the future, and I can tell you that what we think and say does make a difference to them.

I believe that the listeners/hobbyists in attendance had as good of a time as the broadcasters themselves. Most of us ended the conference by going up to the transmitter site lookout tower, perched on top of the building. It gave us a 360 degree “birdseye view" of the entire property. What an amazing way to end our day! We all popped out the jalousie style windows and hung out the cameras, snapping pictures like madmen!

Above all, we got to see what great people are involved in the domestic shortwave industry. The VOA/IBB/BBG crew that hosted us were top-notch and I now understand the term “Southern Hospitality”. I was struck by their love and enthusiasm for the work they do. I offer my thanks to the NASB for this excellent conference!

and special thanks to Zyg for some of the photos above. I couldn't have told the story without you, buddy! 73





Monday, April 28, 2014

NASB in Greenville!

Your admin will be attending and presenting at this year's NASB conference in Greenville, NC (the home of the Edward R. Murrow transmitting station)! I will try to post from there (including stunning anaglyph 3D photos - hopefully) and would love to meet DRMNA readers, if you are attending.

This is going to be a great opportunity to hear from the North American shortwave community and to share ideas and experiences. If you are near the Washington DC area, please consider attending. I am really looking forward to this as my Springtime vacation!

Thursday, May 16, 2013

Radio Australia joins the Radiogram Fun!

From the VOA Radiogram site of Dr. Kim Andrew Elliott

For the first time, Radio Australia will broadcast digital text and images. This will be Saturday 18 May and Sunday 19 May 2013.


UTC               Frequency (kHz)   Target

0830-0835      7410 & 11945        south-west Pacific
1230-1235      9580 & 12095        south Pacific

As is characteristic of shortwave, reception outside the nominal target areas is likely.
Each five-minute broadcast will include:

  :34 RA tuning signal (still Waltzing Matilda?)
  :05 Tone 1500 Hz
1:42 MFSK16 text
1:42 MFSK32 text
  :55 MFSK32 image

All modes are centered on 1500 Hz. The Radio Australia digital transmissions can be received on any shortwave, even if it does not have single sideband capability. Patch audio from the radio to a personal computer, and use software to decode the modes. For more information, see how to decode the modes.

Thursday, March 14, 2013

“Soft launch” of VOA Radiogram this weekend

Here is the link to VOA Radiogram information for this weekend.

I've copied the text from the announcement here for your convenience:



"VOA Radiogram will “soft launch” this weekend. Here is the transmission schedule (all days and times are UTC):


Saturday 1600-1630 17860 kHz

Sunday 0230-0300 5745 kHz (Saturday evening in North America)

Sunday 1300-1330 6095 kHz

Sunday 1930-2000 15670 kHz


All via the IBB Edward R Murrow Transmitting Station in North Carolina.

The digital text modes to be transmitted this weekend on VOA Radiogram are as follows. Each text transmission will be one minute, unless otherwise specified. Asterisk * denotes RSID: if your RxID is on, Fldigi will automatically switch to this mode and audio frequency.

Saturday, February 2, 2013

UPDATE - digital text from The Mighty KBC

9450 kHz North America on 3 February 2013 @ 0000z-0200z

Because of poor shortwave reception in January, we will for the most part repeat the digital text transmissions from two weeks ago during The Mighty KBC North America broadcast at 0000-0200 UTC, 3 February (Saturday evening in North America), on 9450 khz. At about 0130 UTC, 4xPSK63R will be centered on 1000 Hz and MFSK64 centered on 2000 Hz. (For 4XPSK63R, use Fldigi 3.21.65 or newer: OpMode > PSKR > MultiCarrier > 4XPSK63R.) At just before 0200 UTC, an image will be transmitted in the MFSK16 mode. Also, MT63-2000 (long interleave) will be centered on 1500 Hz. This will be an Flmsg formatted transmission, with html. Fldigi and Flmsg can be downloaded from www.w1hkj.com.

Sunday, December 9, 2012

Amazing performance from MT63-2K

In our on-going, off-topic saga of digital text modes, the MT63-2K from last night's Mighty KBC broadcast takes the cake! MT63 shares OFDM (Orthogonal Frequency Division Multiplex) in common with DRM. Boy did it once again show how it shines via a disturbed HF/SW signal path.  

Here is an MP3 file of the final text transmission of the broadcast, recorded at my West Coast location. Take a look at this blog post from Dr. Elliott for the details. Mind you, this is being transmitted from Bulgaria, some 6000+ miles to my location. 

I hope I am not losing you here, but digital text modes are a perfect match to DRM30 in terms of augmenting what is already available on shortwave. The most impressive elements of these tests are that no modifications are required to either the transmitter or an off-the-shelf analogue AM shortwave receiver.

Friday, November 30, 2012

Let Dr. Elliott take control of your PC again

UPDATE: 20121207

9450kHz on Sunday 9 December @ 00:00 UTC -
The Giant Jukebox with Eric van Willegen.

Expect even more from Dr. Elliot this weekend on The Mighty KBC! Look forward to trying PSKR125 and two flavors of MT63! Check their website site for more details. Have FLMSG ready for receiving a webpage via shortwave.

I must say. these digital text tests are some fun! The music played by Eric is great too. I bet he plays something cool that you have never heard before! I'm looking forward to their upcoming holiday specials, especially in DRM! The Mighty KBC is a true friend of radio fans and DRM enthusiasts. Be sure to drop them a message and tell them how much you appreciate their fun and innovative take on shortwave broadcasting!

PREVIOUS DETAILS:
Scoot on over to Kim Andrew Elliott's blog to take a look at what is coming for digital enthusiasts this weekend from The Mighty KBC. In brief... CORRECTION: This UTC Sunday, 2 December,

"Sunday, 25 November, more digital text during the broadcast of The Mighty KBC at 0000 to 0200 on 9450 kHz. At about 0130 UTC, PSK125 will be centered at 1300 Hz on the waterfall, MFSK32 at 2200 Hz"

Sunday, June 17, 2012

CBC gutted like a trout

Here is an article in the Ottawa Citizen that quotes our esteemed colleague Dr. Kim Andrew Elliott. Apparently, the Conservatives in Canada have trashed CBC entirely. I hope that this will be a lesson for all of us that when a single political persuasion holds a significant majority, short-sightedness (based on partisan politics) becomes the name of the game. For DRM enthusiasts, this means my previous Sackville post is correct. "Say goodnight Gracie" and here is a nice grilled trout recipe.

Sunday, April 22, 2012

Russia to abandon DRM (already?)

I know it isn't nice to gossip, but our astute colleague Kim Andrew Elliott spotted this article [available via translation technology] indicating that at very least MW DRM is on the chopping block in Russia. This is a bummer as not only was Russia touted by the Consortium as a country amidst DRM conversion, but it also means one less place needing new receivers. There are a significant number of commenters to the article that sound as if they support DRM for Russia.