Muceo de la CB

Un Qbits para mi radio

   
Gracias por estar ahi ahora leyendo esta pagina,Las brechas estan abiertas ahora
y en proximos años veremos como cambia el paradigma del siglo veintiuno.
La programacion cuantica y los chips cuaticos estan aqui.No anivel usuario tampoco
a nivel de universidades y laboratorios.
Pero un dia cambia el punto de inflexion de la progrmacion y la progrmacion cuantica
y tendremos muchos elementos cuanticos.Una radio cuantica bien via SDR o con
chips (circuitos integrados)programables,que cambiara todo.
Un recpetor con un circuito integrado cuantico o un transmisor con un circuitos cuantico
hace que aparesca una propagacion cuatica,claro todavia no hay nada en el mercado
que permita hacer investigaciones en propagacion cuatica pero con un transmisor de
un vatio por ejemplo y un receptor ajustado a su frecuencia y desde ya se puede averiguar
que camino se abre con radios caunticas y emisores cuaticos.
El dia que ocurra dos cosas que los circuitos integrados cuanticos se miniaturices y se
vendan masivamente a fabricantes de dispositivos hace que Receptores de radio,receptores
de television lleguen a cambiar todo incluso los nombre de todas las transmisiones
digitales como las que ahora nos acompaña DAB,DRM,HD Radio en TV la TDT
etc.etc.
Juan Gustavo Gonzalez
Arucas(ciudad del sonido)

DRM

FCC petitioned to open up 45 to 50 MHz for DRM+ broadcasts in the USA Da ei7gl.blogspot.com August 28, 2019 Currently most of the terrestrial radio stations in the USA broadcast either on the AM band from 540 to 1700 kHz or on the FM band from 88 to 108 MHz. At the end of September 2018, the FCC announced that there were 4,464 stations on AM and 10,867 stations on FM. Due the crowded nature of the existing bands, it has been hard to introduce new digital radio formats. DRM or Digital Radio Mondiale is a digital format designed to replace existing AM transmissions with clearer audio and with just 20% of the power. DRM+ is the format for VHF. WRNJ Radio co-owner Larry Tighe has now filed a petition for rulemaking with the FCC, asking that the 45 MHz to 50 MHz band on the VHF spectrum be reallocated for DRM+ transmissions. In a statement, Tighe said... “The 45–50 MHz band was allocated to two-way radio users in business and government, who have since migrated to higher bandwidths where they can use handsets with smaller antennas. As a result, this spectrum is extremely quiet right now. WRNJ monitored this bandwidth for an extended period of time, and heard very few distant signals.”“There were 660 TV stations between Channels 2 and 7 before the transition to UHF for HDTV. There are now only approximately 60 TV stations in the USA on those old VHF channels. There is plenty of spectrum to share with a new service, i.e., DRM+ or any modulation, if the FCC really wanted to move AMs.”Even though the DRM standard has been around for over a decade, it is only recently that it has begun to make serious inroads to the broadcasting scene with India, China and Russia showing an interest. One of the current problems is the high cost of DRM receivers which is prohibitive to consumers in developing countries. Obviously if the USA opted for a new DRM+ allocation, it would give the format a huge boost. If it turned out to be the 45 to 50 MHz allocation then it raises the possibility of long distance reception by means of Sporadic-E during the summer months or via F2 propagation around the peak of the sunspot cycle. More info in the links below: 1) FCC stats for the number of AM and FM stations at the end of Sept 20182) https://www.radioworld.com/tech-and-gear/u-s-based-shortwave-broadcasters-eye-digital3) Previous post - Russia proposes to use DRM on 65.9-74.0 MHz
F.Radiorama

China

13850DRM mode block, CNR1 DRM transmission from Qiqihar in far northeastern China, RTC site #2021. S=9 signal in Akitakata Japan. At 00.006 UT on Aug 31 Heard on remote access at SDR unit in Hiroshima Akitakata and Tokyo Japan. [selected SDR options, span 12.5 kHz RBW 15.3 Hertz] (wb df5sx, DXplorer wwdxc BC-DX TopNews Aug 31

Radio Rama

Disponible el boletin de radiorama de este mes en este Enlace

Los mejores de la onda corta 2019

Los mejores de la onda corta 2019", del 01/09/2019 al 30/10/2019.-Cuál es la mejor emisora de onda corta Cuál es el mejor programa para atender cartas? Cuál es el mejor programa de variedades? Cuál es el mejor presentador? Cuál es la mejor presentadora? Cuál es el mejor programa de Dx?
https://aer.org.es/archivos/15320

IARUMS en Iberradio