I will be on the air from L73D. Multi Single HP.

Hope to CU on the air.

73

Horacio

I received an invitation for this club.

The club is dedicated to Hellschreiber, or Hell, a unique method of sending and receiving text using facsimile technology in which the characters are not decoded, but “painted” or printed on a screen.  Here on this site you can learn all about www.feldhellclub.org.

Enjoy!

Horacio

The World Scout Bureau has fully prepared its amateur radio station HB9S for the JOTA weekend, 18 and 19 October. And for those that have an internet connection available at their JOTA station too, watch out for us:
if technology permits you will find our actual transmitting frequency here on the web.

The JOTA is an annual event in which Scouts and Guides all over the world speak to each other by means of amateur radio contacts. Scouting experiences are exchanged and ideas are shared, via the radio waves.

When Scouts want to meet young people from another country they usually think of attending a World Jamboree or another international gathering. But few people realize that each year about half-a-million Scouts and Guides “get together” over the airwaves for the annual Jamboree-on-the–Air (JOTA). Modern communication technology offers Scouts the exciting opportunity to make friends in other countries without even leaving home…..

Since 1958 when the first jamboree-on-the-Air was held, thousands of Scouts and Guides have “met” each other through this event. Not only is it fun to talk to Scouts from other parts of the world but it provides also a chance to find out about other countries and about Scouting elsewhere. Many contacts made during the JOTA have resulted in penpals and links between scout troops that have lasted for many years.

With no restrictions on age, on the number that can participate and at little or no expense, the JOTA provides an opportunity for Scouts and Guides to contact each other by amateur radio. The radio stations are operated by licensed amateur radio operators. Many Scouts and leaders hold licences and have their own stations, but the majority participates in the JOTA through stations operated by local radio clubs and individual radio amateurs. Today some operators even use television or computer linked communications.

Date and duration of the event

The world–wide Jamboree-On-The-Air is organized to coincide with the third full weekend of October each year. The event starts at 00.00 hours local time on the Saturday and concludes 48 hours later at 24.00 hours local time on the Sunday. Each station can choose its own operating hours within this period.

More information at http://www.scout.org/en/information_events/events/jota/all_about_jota/what_is_jamboree_on_the_air_jota

http://wota2008.blogspot.com/

Congratulations Ladys!
Regards
Horacio – LU1BJW

Todo estaba previsto para comenzar la escucha despues de las 11:30 PM del Sabado.
Pero junto a Néstor – LU8AJ y Fernando LU9AWT el anfitrión nos entretuvo con cafe y una tarta de manzana espectacular. (Por la cual Adrián asumió su autoría pero todos estimamos que … solo la sacó del horno).

Así llegamos al punto en que la Luna asomó por encima de la frondosa arboleda.

Pasada la medianoche se comenzaron a escuchar las estaciones.

La estación:
Adrián, hábil con el soldador, diseñó y construyó su propio amplificador lineal (4CX1500B) de 500 watts que es excitado por un tranceptor Icom 275 de 100 watts. El sistema irradiante esta compuesto por 3 yagis.

El modo de operación:
Confieso que fui con la idea de escuchar las voces de los colegas con algo de retardo luego de que nuestras ondas viajaran 250 mil Km. de ida y otros tantas de regreso. Pero Adrián me ilustró indicando que esto es casi imposible y que su modo de operación es JT65 o sea totalmente digital.

JT65 Protocol

Todos los presentes fuimos magistralmente ilustrados por nuestro anfitrión quién desplegó sus dotes académicas potenciadas por su pasión por nuestro hobby.

Los comunicados en este modo son transmisiones de una serie de 64 tonos en el modo SSB de 1 minuto de TX y otro de RX, que son grabadas por el programa y luego decodificadas.

Los contactos están compuestos por 7 “cambios” para cada uno de las dos estaciones que realizan en contacto en los cuales van confirmando los datos enviados y recibidos, por supuesto con un “73″ al final.

Como toda actividad radio amateur de hoy este modo tiene su foro/cluster donde los operadores se ponen de acuerdo para coordinar horarios de contactos:

Algunos links interesantes:

Nice to meet you!
Horacio – LU1BJW