Posts

Michael

Extraordinary Footage from the Argentinian Antarctic Base of Penguin Entertained by Tecsun Radio

, , ,

We have received some extraordinary footage all the way from an Argentinian Antarctic base. Penguins enjoying some music being played in this very remote location from a Tecsun Radio.

In an all white landscape, typically quiet apart from the sound of cracking ice, distant seals and penguins honking.

Alejandro LU8YD captured some penguins being entertained by some music broadcast from the local FM station LRA36 Radio Nacional Arcangel San Gabriel, using his Tecsun PL360.

They have named this footage “Pinguino”. It’s interesting to see the penguins gather around and listen to this music while preening themselves and relaxing.

This a reminder of how radio is used around the world, often in extremely remote locations as a source of information and entertainment, even for the penguins!

In a time where the news cycle can be on a constant negative cycle, we thought we would share this fun little snapshot from Antarctica! 

The radio you are seeing in this video is a PL360. Here at Tecsun Radios Australia, we have recently introduced the new upgraded version of this radio, The Tecsun PL-368 DSP Handheld HF SSB Receiver with Synchronous Detection, you can read all about it here.

Speaking of Antarctica, We are excited to announce that Tecsun Radios Australia will donate shortwave radios to the Argentine Antarctic Base.

The Esperanza Antarctic base was founded in 1952 and has approximately 65 people living year-round. There are approximately 8 families with their children and a school with three levels of education. Each family has its own independent house. Scientific activities are carried out in cooperation with other countries. LRA36 is a station created in 1979 and broadcasts on shortwave on 15476 KHz USB, FM on 96.7 MHz, and streaming.

The place is located next to Caleta Choza in Bahia Esperanza north of the Antarctic Peninsula.

Tecsun Radios Australia will supply a range of Tecsun radios to those living at the Argentinian Esperanza Antarctic Base as part of an investigation into DX propagation and MW/SW monitoring in a low noise environment.

We will be supplying a mixture of PL-365s, PL880s, and other models to this community to be used in schools, family homes, communal dining rooms, warehouses, and power plants.

We expect we will receive some details on what shortwave reception is like from down there.

We look forward to sharing with you more details as to how these are put to use once they arrive at the base community.

 

/1 Comment/by
Michael

Funding for 24 Hour Shortwave Broadcasts In The South Pacific

, , ,

RNZ shirtwave

In recent and welcome news, RNZ (Radio New Zealand) shortwave radio broadcasts have resumed from the hours of 5am to 9am ( NZ time) to the ​​Pacific region. A service that ceased back in 2016.

As a result of this decision, listeners in the remote areas of the Pacific will now have 24-hour access to these broadcasts instead of it turning off early in the morning every day. 

We have previously reported just how important these broadcasts are for many remote communities who regularly endure unexpected weather patterns and can lose contact with the mainland and emergency services. Emergencies don’t stop between the hours of 5am and 9am, therefore access to emergency broadcasts shouldn’t either.

We applaud the decision by the NZ Government to contribute extra funding for shortwave services. We hope the Australian Government is taking notes!

One of the most widely listened to broadcasts is the RNZ Pacific’s flagship daily current affairs programme Pacific Waves which is also broadcast by the BBC Pacific Service.

So, what will be broadcast ? At various times RNZ will run 3 different frequencies, at 5am NZT tune in on 7425 kilohertz, at 6am NZT listen on 9700 kilohertz, and at 8am NZT change the dial to 11725 kilohertz

This information and image is courtesy of the RNZ website.

For the full schedule of shortwave frequencies check out the RNZ Pacific website.

/1 Comment/by
Ricardo Rosario

Solar Cycles and how they affect shortwave propagation

, , ,

In 1843 the phenonema known as the Solar cycle was discovered by Samuel Schwabe a German astronomer who observed transitions of the Sun from periods of high activity to low activity every 11 years, over a period of nearly 20 years.

Put in simple terms, the Sun is composed of a huge ball of electrically charged hot gas. As this gas moves, it generates a powerful magnetic field. This magnetic field transitions through an 11 year cycle (known as the Solar Cycle) during which the magnetic poles of the Sun are transposed, ie the north and south poles change places.

This cycle affects activity on the surface of the Sun, such as sunspots and solar flares. The energy released by these events charges particles in the ionosphere, affecting radio propagation. More solar flares and sunspots occur at the peak of the cycle than at the bottom of the cycle. Typical values are 80-100 sunspots at the cycle peak and 15 or so at the cycle minimum.

When a strong flare occurs, the increased x-ray and extreme ultraviolet radiation produces ionisation in the lower, D (absorption) layer of the ionosphere, disrupting HF radio broadcasts by absorbing rather than reflecting signals. 

We are currently at the end of Solar Cycle 24 (calculated as mid 2020), and from this point we can expect an increase in solar activity and changed radio propagation as the maximum useable frequency (MUF) for shortwave communications increases with an increase in solar activity.

At the peak of the Solar Cycle, the higher frequencies of the shortwave spectrum are very good. Low power stations can be heard over remarkably long distances. 

At the bottom of the cycle, the current position, those higher frequency signals will not usually support normal propagation via the ionosphere. So propagation at lower frequencies will be better whilst higher frequencies will suffer. 

 

Article written by Tecsun Radios Australia

Image of sun via Nasa.

/1 Comment/by