Following my previous article on the transmission to the Qatar Oscar 100 satellite with SDR technology (LimeSDR, Adalm pluto) which was dedicated to the narrow-band transponder transmission (SSB and modes with spectral width less than 2.7 kHz), here is an article that should this time interest those who are willing to embark on the digital amateur television program, commonly called DATV (Digital Amateur Television).
As you may have read so far, I have a LimeSDR-mini but now also an Adalm Pluto. During one of my conferences (in french – see Amsat Francophone Conference), I had the occasion to compare the two equipments, their advantages and disadvantages. I had the experience to transmit in DATV to QO100 with both the LimeSDR-mini and the Adalm Pluto. Both models work very well, but I will focus in this article on the use of the Adalm Pluto, because finally it is today the solution that is the easiest to implement. Indeed, to transmit with LimeSDR, a Raspberry Pi is necessary. In the case of the Adalm Pluto and especially thanks to the developments of a specific firmware of Evariste F5OEO, we do without this nanocomputer, the Adalm rather embedding the software directly.
In this article, as usual, we will go step by step through all the operations described as precisely as possible.
I use the Windows operating system. I won’t go into the details of the operation of the transmission modes themselves, not being a specialist in the fundamentals. My goal is to bring to your knowledge all the steps that will allow you to build your own transmitting station, and transmit images. It is possible that the software evolving, certain functions, or operations themselves are to be made evolve. Do not hesitate to submit your questions, problems of implementation directly in comment of the article.
Here is the diagram of principle which we will implement, to transmit our DATV videos to the QO-100 satellite.
Icom has released updates for its latest range of Amateur radios. The updates are available for the IC-705, IC-7300 and IC-9700 SDR transceivers. The... Read more
X6100 is an ultra-portable shortwave transceiver. It adopts the SDR software radio platform architecture of excellent performance, which carries power... Read more
What is the best DMR Handheld Ham Radio you can get in 2021, and why? Today I take you through my Top 10 choices for DMR HTs, with an honorable mentio... Read more
AMSAT’s Engineering and Operations Teams have announced that AO-109 (RadFxSat-2/AMSAT Fox-1E) is now open for amateur use. AMSAT advises operators to... Read more
Radioddity has a new Mini Mobile DMR Radio about to be released which they are calling the DB-25-D. This is a small dual band DMR radio with 20W power... Read more
Today I go over the features and do some power testing on the Baofeng UV-10R Dual Band HT Ham Radio Specification: Brand Baofeng Power 10W Frequency V... Read more
Jim Heath W6LG shows what happened to RG8X that had 1500 applied. Watch the subsequent episodes for more information about coax. Read more
Faith Hannah Lea, KD3Z, of Palm Coast, Florida, has been selected as the 2021 Bill Pasternak WA6ITF Memorial Amateur Radio Newsline Young Ham of the Y... Read more
The winning article for the July 2021 QST Cover Plaque award is “A Sensitive Field Strength Meter for Foxhunting,” by Woody White, KZ4AK. The QST Cove... Read more
Friday and Saturday, August 6 – 7, Russian cosmonauts onboard the International Space Station (ISS) will transmit slow-scan television (SSTV) images f... Read more