Entries 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 […]
Amateur Radio Operators Assist Air Ambulance using HF radio.
Imagine flying off the coast over a vast ocean when your communications are lost. Regular weather condition reports, particularly regarding strong headwinds are vital to the successful flight and landing of an airplane. On July 9, an air ambulance departing Santiago De Chile to collect a patient on Easter Island lost satellite communications […]
The re-introduction of shortwave to Russia using DRM.
Russia is considering the re-introduction of shortwave radio using DRM (Digital Radio Mondiale), a technology which is designed to cover large areas at modest operating cost. Prior to the 2000’s, shortwave was broadcast in Chukotka for communications across the far northeastern region of Russia and the Northern Sea but was gradually discontinued as funding became […]
The Art of Frequency Planning and Why Shortwave Frequencies Change With The Seasons.
Do you enjoy listening to shortwave and have noticed the frequencies used by your favourite broadcaster change twice a year? Interestingly there is a scientific reason behind this. Shortwave travels long distances because of its unique way of propagating. The transmission is beamed upwards towards the sky where it is reflected back down to earth […]
Xiegu G90 featured in a 2 page spread in Silicon Chip Mag
Have you seen the latest edition of Silicon Chip magazine? Our latest product the Xiegu G90 has its own 2 page spread with a favourable review by ROSS TESTER. The most notable features are: transmit power of up to 20 watts adjustable in 1 watt increments so output power can be adjusted to suit band […]
The Future Of Shortwave.
The future of Shortwave is looking bright as the BBC Shortwave transmissions service of two decades ago is being revisited. In a time where people are distancing themselves and experiencing isolation. Shortwave may just be what the world needs to unite all cultures! People who enjoy shortwave and for those who are […]
Two Apps That Will Easily Identify Any Shortwave Station.
For those of you who have ever been scanning shortwave radio and happened across an interesting station but have no idea what it is or where it is coming from there are a couple of phone apps that can identify what you are listening to. These 2 apps (depending on what type of phone […]
The Power of Shortwave Radio to Connect the Mali Wider Community.
In a world where internet connectivity and social media reign supreme it is interesting to reflect on the power radio still has in developing countries. A great example of this is the country of Mali in West Africa that often experiences political unrest and unreliable power sources, the need for information is critical. In Mali, […]