Tag Archives: VOA

VOA Radiogram this weekend

VOARadioGram(Source: VOA Radiogram)

Some listeners were impressed with the performance of last weekend’s surprise mode: MT63-1000 long interleave, especially as it was mixed with music. For that reason, VOA Radiogram for the weekend of 20-21 July will include a VOA News story in the MT63-2000L mode (200 wpm), followed by the same story in the MFSK64 mode (240 wpm).

Here is the lineup for VOA Radiogram, 20-21 July 2013:

2:20  MFSK16: Program preview

4:31  MFSK16: VOA News about quartz glass for data storage

2:04  MFSK32: Image of data stored in silica glass

3:59  MFSK32: VOA News about end of India’s telegram service

2:42  MFSK32: Image of sign at telegram office

2:53  MT63-2000L: VOA News about new materials for solar cells

2:32  MFSK64: Same VOA News about new materials for solar cells

1:10  MFSK32: Image of molecularspace.org logo

1:08  MFSK16: Closing announcements

1:11  Surprise image

The audio processor will not be used this weekend.

Please send reception reports to  [email protected].

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VOA Radiogram includes EasyPal comparison this weekend

VOARadioGram(Source: VOA Radiogram)

During the weekend of 29-30 June 2013, VOA Radiogram will continue experiments with the EasyPal digital image software. EasyPal will be transmitted in both its 4-QAM and 16-QAM settings to see if the former can be decoded in conditions where the latter cannot. Download EasyPal from  vk4aes.com.

VOA Radiogram for 29-30 June 2013:

2:31  MFSK16: Program preview

4:19  MFSK32: VOA News: “super-earths”

2:05  MFSK32: Accompanying image

:23  MFSK32: Introduction to MFSK64

2:15  MFSK64: VOA News: China space mission

2:53  MFSK32: Accompanying image

:33  MFSK32: Introduction to EasyPal

7:00  EasyPal 4-QAM: “super moon” in Greece

2:40  EasyPal 16-QAM “super moon” in Singapore

1:08  MFSK16: Closing announcements

:24  Surprise mode of the week

 VOA Radiogram transmission schedule (all days and times UTC):

  • Sat 1600-1630 17860 kHz
  • Sun 0230-0300 5745 kHz
  • Sun 1300-1330 6095 kHz
  • Sun 1930-2000 15670 kHz
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Cambodia bans foreign radio in advance of elections

(Photo: Wikimedia Commons)

(Photo: Wikimedia Commons)

(Source: Radio Free Asia)

The Cambodian government has ordered local radio stations to stop broadcasting foreign programs ahead of general elections in a move widely seen as a major setback to media freedom in the country and aimed at stifling the voice of the opposition.

Prime Minister Hun Sen’s administration on Tuesday asked all FM stations to cease rebroadcasting Khmer-language radio programs by foreign broadcasters in the run-up to the July 28 elections, saying the move was aimed at “forbidding” foreigners in Cambodia from campaigning for any group in the polls.

Local stations who flout the order face legal action.

“Upon receiving this directive, I would like to ask that all the directors of FM station to implement it accordingly,” acting Information Minister Ouk Pratna said in issuing the order.”If any station doesn’t follow this directive, the Ministry of Information will take legal action against it according to the existing law.”

Khmer programs of at least three foreign broadcasters—U.S.-based Radio Free Asia (RFA) and Voice of America (VOA), as well as Radio Australia—will be barred from being aired under the directive.

Three other foreign broadcasters—the state-run Voice of Vietnam and China Radio International and French public radio station RFI—will not be affected as they operate their own stations in Cambodia.

Move ‘questions legitimacy’ of elections

The U.S. government immediately lodged a protest with the Cambodian authorities over the directive, saying it will throw in doubt the legitimacy of the elections, in which Hun Sen’s Cambodian People’s Party (CPP) is widely expected to win, enabling him to extend his 28 years in power.

The CPP has won the last two polls by a landslide despite allegations of fraud and election irregularities.

“The directive is a flagrant infringement on freedom of the press and freedom of expression, and is yet another incident that starkly contradicts the spirit of a healthy democratic process,” John Simmons, spokesman for the U.S. Embassy, said in a statement.

“While Royal Government officials at the highest levels have publicly expressed an intention to conduct free and fair elections, these media restrictions, and other efforts to limit freedom of expression, will seriously call into question the legitimacy of the electoral process,” he said.

About 10 local FM stations carry Khmer programs by RFA, which also broadcasts on shortwave in Cambodia.

RFA said in a statement that it “remains committed to bringing objective, accurate, and balanced election coverage to the people of Cambodia at this critical time” and vowed that it “will do so on every delivery platform available.”

“The Ministry of Information’s directive doesn’t stem from complaints of programming irregularities, but rather is a blatant strategy to silence the types of disparate and varied voices that characterize an open and free society,” it said.

Beehive Radio

Mam Sonando, a Cambodian activist who runs the independent Beehive Radio and an ardent critic of Hun Sen’s administration, called the ban “illegal” and “childish” but added that he would comply with the order.

He said the order would hurt political parties scrambling to convey their messages to the people ahead of the elections.

Mam Sonando, who owns Beehive Radio, told RFA earlier this week that the Information Ministry is restricting overseas groups from buying airtime at Beehive Radio and had turned down requests to set up relay stations to beam to the provinces.

U.S.-based Human Rights Watch (HRW) said it was puzzled by the Cambodian government’s suggestion of foreign meddling in the elections.

“There has been no history in Cambodia of foreigners participating on a partisan basis in elections,” said Brad Adams, executive director of Asia Division. “What this is really about is they don’t want foreigners coming in and observing the elections and then doing their job independently and professionally and then reporting their results.”

He said the Hun Sen government was trying to prevent reporting of events leading up to the elections.

“It’s about the fact that they know the elections are going to be very poor—they are structurally poor, they are poor in implementation and poor in practice and they don’t want this reported,” Adams said.

“The problem is that the world doesn’t work like that anymore. They can’t keep the eyes and ears of the world out. So, the reality is going to be reported.”

The Cambodian government has ordered local radio stations to stop broadcasting foreign programs ahead of general elections in a move widely seen as a major setback to media freedom in the country and aimed at stifling the voice of the opposition.

Prime Minister Hun Sen’s administration on Tuesday asked all FM stations to cease rebroadcasting Khmer-language radio programs by foreign broadcasters in the run-up to the July 28 elections, saying the move was aimed at “forbidding” foreigners in Cambodia from campaigning for any group in the polls.

Local stations who flout the order face legal action.

“Upon receiving this directive, I would like to ask that all the directors of FM station to implement it accordingly,” acting Information Minister Ouk Pratna said in issuing the order.”If any station doesn’t follow this directive, the Ministry of Information will take legal action against it according to the existing law.”

Khmer programs of at least three foreign broadcasters—U.S.-based Radio Free Asia (RFA) and Voice of America (VOA), as well as Radio Australia—will be barred from being aired under the directive.

Three other foreign broadcasters—the state-run Voice of Vietnam and China Radio International and French public radio station RFI—will not be affected as they operate their own stations in Cambodia.

Move ‘questions legitimacy’ of elections

The U.S. government immediately lodged a protest with the Cambodian authorities over the directive, saying it will throw in doubt the legitimacy of the elections, in which Hun Sen’s Cambodian People’s Party (CPP) is widely expected to win, enabling him to extend his 28 years in power.

The CPP has won the last two polls by a landslide despite allegations of fraud and election irregularities.

“The directive is a flagrant infringement on freedom of the press and freedom of expression, and is yet another incident that starkly contradicts the spirit of a healthy democratic process,” John Simmons, spokesman for the U.S. Embassy, said in a statement.

“While Royal Government officials at the highest levels have publicly expressed an intention to conduct free and fair elections, these media restrictions, and other efforts to limit freedom of expression, will seriously call into question the legitimacy of the electoral process,” he said.

About 10 local FM stations carry Khmer programs by RFA, which also broadcasts on shortwave in Cambodia.

RFA said in a statement that it “remains committed to bringing objective, accurate, and balanced election coverage to the people of Cambodia at this critical time” and vowed that it “will do so on every delivery platform available.”

“The Ministry of Information’s directive doesn’t stem from complaints of programming irregularities, but rather is a blatant strategy to silence the types of disparate and varied voices that characterize an open and free society,” it said.

Mam Sonando

Mam Sonando, a Cambodian activist who runs the independent Beehive Radio and an ardent critic of Hun Sen’s administration, called the ban “illegal” and “childish” but added that he would comply with the order.

He said the order would hurt political parties scrambling to convey their messages to the people ahead of the elections.

Mam Sonando, who owns Beehive Radio, told RFA earlier this week that the Information Ministry is restricting overseas groups from buying airtime at Beehive Radio and had turned down requests to set up relay stations to beam to the provinces.

Election reporting

U.S.-based Human Rights Watch (HRW) said it was puzzled by the Cambodian government’s suggestion of foreign meddling in the elections.

“There has been no history in Cambodia of foreigners participating on a partisan basis in elections,” said Brad Adams, executive director of HRW’s Asia division. “What this is really about is they don’t want foreigners coming in and observing the elections and then doing their job independently and professionally and reporting their results.”

He said the Hun Sen government was trying to prevent reporting of events leading up to the elections.

“It’s about the fact that they know the elections are going to be very poor—they are structurally poor, they are poor in implementation and poor in practice and they don’t want this reported,” Adams said.

Cambodian Center for Independent Media Director Pa Nguon Teang said the ban was aimed at curbing the views of the opposition in the country.

Freedom of the press has increasingly declined in the country, with reporters exposing government corruption and other illegal activity coming under deadly attack and facing death threats, including from the authorities, according to a rights group and local journalists.

Stifling ‘opposition radio’

Pa Nguon Teang felt the directive was specifically aimed at RFA and VOA.

“The ban intends to stifle the voice of RFA and VOA because the government has regarded the two stations as opposition radio stations,” he said, adding that by preventing local stations from carrying programs by the two entities, the government believes it can “silence” the opposition parties.

Local rights group Adhoc’s chief investigator Ny Chakriya said the ministry’s ban is “not based on any applicable laws,” pointing out that “it is illegal and can’t be enforced.”

“The ban is against the constitution because the constitution guarantees freedom of expression,” he said.

Moeun Chhean Nariddh, director of the Cambodia Institute for Media Studies, also called the move a violation of the constitution.

“Any order preventing media dissemination is against the constitution,” he said.

Reported by RFA’s Khmer Service. Translated by Vuthy Huot and Samean Yun. Written in English by Parameswaran Ponnudurai.

Andy Sennitt (with Focus Asia Pacific) points out that VOA has many affiliate stations in Cambodia that will be affected. VOA still plans to broadcast election coverage on medium wave and shortwave, however.

If this sounds all too familiar, you might remember Zimbabwe’s radio ban earlier this year.

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VOA Radiogram this weekend mixes bad noise with good noise

VOARadioGram(Source: VOA Radiogram)

During the past weekend, we experimented with mixing music with MFSK text modes. Reducing the MFSK modes by 9 dB was not a problem if the signal level was good, but the MFSK text did break up for some listeners if reception conditions were marginal.

This weekend, 15 and 16 June, we will mix some actual noise taken from shortwave with MFSK text. After the noise begins, a VOA News story in MFSK16 will first be transmitted at full level, then reduced to -6 dB, then reduced to -12 dB. I will probably lose many of you when the level is reduced to -12 dB, but please stay tuned: the audio level will soon be restored.

Here is the lineup for VOA Radiogram, 15 and 16 June 2013:

  • 2:10 MFSK16: Program preview
  • 1:58 MFSK16: Introduction to noise experiment
  • 10:09 MFSK16: At -0 -6 -12 dB versus noise
  • :59 MFSK16: Image of VOA logo
  • :47 MFSK16: Introduction to MFSK32
  • :51 MFSK32: Image of VOA logo
  • 3:19 MFSK32: VOA News re Curiosity Rover on Mars MFSK32: VOA Radiogram logo
  • 2:40 EasyPal Image of the week
  • 1:10 MFSK16: Closing announcements
  • :20 Surprise mode of the week

VOA Radiogram transmission schedule

(all days and times UTC)
Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 kHz
Sun 1930-2000 15670 kHz

All via the Edward R. Murrow transmitting station in North Carolina.

Please send reception reports to [email protected]

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VOA Radiogram features EasyPal digital images this weekend

VOARadiogram(Source: VOA Radiogram)

During the past weekend, EasyPal digital images were received successfully throughout Europe and North America. You can see a gallery of some of the received images here:

voaradiogram.net/post/51385444401/voa-radiogram-easypal-images-received-100-or-0

Reviewing the advantages of EasyPal versus MFSK32:

EasyPal:

1) When received successfully, the picture is perfect.

2) Takes less time to transmit than MFSK32 and most SSTV images of the same size.

3) No problems with slant if soundcards are not calibrated.

MFSK32:

1) If the signal drops below a certain level, or if interference exceeds a certain level, no EasyPal image will be received at all. Under similar reception conditions, MFSK32, which uses an analog frequency shift keying system for images, will allow the an image to be seen, even if the quality is not perfect.

2) MFSK32 images allows images of different heights and widths, including small images which can be transmitted quickly. The gray tone MFSK32 image option allows even faster transmission.

3) MFSK32 images can be decoded by more than one software program under more than one operating system. There is only one EasyPal program, and it works only under the Windows operating system.

I welcome your comments and suggestions about the transmission of images via shortwave broadcast. Weighing all of the above factors, I am inclined to adopt MFSK32 as the primary image mode for VOA Radiogram. However, the EasyPal images are so impressive that I will continue to include some in future programs.

On VOA Radiogram for the weekend of 1 and 2 June 2013, we will continue to compare MFSK32 and EasyPal images. Here is the lineup for the program:

3:44    MFSK16: Program preview
3:17    MFSK32: VOA News story about Olympics wrestling
3:16    MFSK32: VOA News story about 2013 hurricane season
1:10    MFSK32: File image of Atlantic hurricane
2:53    MFSK32: VOA News story about colliding galaxies
1:04    MFSK32: Image of the colliding galaxies
1:21    MFSK32: Introduction to MFSK64 and EasyPal
1:30    MFSK64: Same VOA News story about colliding galaxies
:39     EasyPal text: Same VOA News story about galaxies
2:38    EasyPal image: Colliding galaxies
2:38    EasyPal image: Soyuz capsule being moved to launch site
1:09    MFSK16 closing announcements
:29     Surprise mode of the week

To decode EasyPal text and images, download the 4-May-2013 version of the program from vk4aes.com.

To decode the MFSK modes, use Fldigi from w1hkj.com or another digital decoding program.

VOA Radiogram transmission schedule
(all days and times UTC)

Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 kHz
Sun 1930-2000 15670 kHz

All via the Edward R. Murrow transmitting station in North Carolina.

Please send reception reports to [email protected]

And visit voaradiogram.net (where any schedule or frequency changes will be posted)

Twitter: @VOARadiogram

Kim

Kim Andrew Elliott
Producer and Presenter
VOA Radiogram

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Capture images on the VOA Radiogram this weekend

VOARadioGram(Source: VOA Radiogram)

VOA Radiogram for the weekend of May 11 and 12 will feature long stretches of VOA News in plain text, using the MFSK 32 and 64 modes. No Flmsg or Flamp this time. This weekend’s program will also include our first test of slow scan television (SSTV).

Here is the lineup:

MFSK16 (2:28)     Preview

MFSK32 (12:08)     VOA News stories

The first of the three stories will be in Spanish. This is to determine how letters with accent marks appear on your display. The second VOA news story will be followed by an accompanying MFSK32 image

MFSK16     Intro to the next mode

MFSK64 (3:34)    VOA News story

MFSK16     Intro to the next mode

SSTV Scottie DX (4:31)

There are several software programs that decode SSTV, including Digital Master 780 (DM780) andMMSSTV. A free receive-only SSTV decoder is RX-SSTV from users.belgacom.net/hamradio/rxsstv.htm

MFSK16 (1:11)     Closing announcements

Closing music, accompanied by the surprise mode of the week

Please send reception reports to [email protected]

Screenshots and audio samples are welcome, especially audio of less than perfect reception conditions.

VOA Radiogram transmission schedule
(all days and times UTC)
Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.

 

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VOA Radiogram for April 27/28 includes Thor50x2, PSK63F, and Flamp

VOARadiogram(Source: VOA Radiogram)

Apologies for not updating this website since the April 20/21 VOA Radiogram. I have been diverted by deadlines connected to my other full-time job, audience research analyst for the International Broadcasting Bureau.

Thanks to all who sent reception reports, screenshots, audio samples, and other materials from the past weekend’s program. MFSK held off a challenge from the Thor modes and remains the most successful of the modes we have tested.

However, because your producer omitted the Thor 50×2 mode — a mode that might prove to be robust — from that program, VOA Radiogram on April 27/28 will include a “make good” transmission of Thor 50×2. And a transmission of Thor 50×1 for comparison.

There will also be a transmission of the PSK63F mode. This rather slow mode performed well during VOA Radiogram 1, but we only gave it a minute. There will be a longer transmission of PSK63F this weekend to allow a better evaluation.

The last text transmission this weekend will be in the Flamp format. If you don’t already have it, please download Flamp from www.w1hkj.com. Flamp divides a text file into several blocks, each with a specific number of characters. If any block is received without the correct number of characters, that block is rejected. The missing block can be picked up during the repeat transmission. Flamp might be useful for those text transmissions that are received at about 90% copy, when occasional deep fades prevent 100% copy. In Flamp, under Configure, check both of the Auto sync boxes.

Here is the lineup for the April 27/28 VOA Radiogram:

MFSK16 (58 wpm) program preview
PSK63F (55 wpm), 2:50
MFSK32 text (120 wpm) and image, 4:28
Thor50x1 (180wpm), 1:48
Thor50x2 (180wpm), 1:46
MFSK64 (240 wpm), 2:16
MFSK128* in Flamp X2 format, 3:46
MFSK32 image

*Probably a good idea to set the MFSK128 mode manually rather than depend on the RSID

All modes will be centered on 1500 Hz.

Each mode will be introduced by a brief MFSK16 transmission, same as last weekend.

Please send reception reports to [email protected]

Twitter: @VOARadiogram

VOA Radiogram transmission schedule
(all days and times UTC)
Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.

Kim

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