Radio Luz y Sonido, a new religious broadcaster of the Diocese of Huanuco, first appeared on 6473, in September 1993. The first news was brought from Henrik Klemetz in Santa Fe de Bogota, Colombia. Without any difficulty, its powerful signal has been heard also in Japan. Radio Luz y Sonido has been regularly observed on 6472-6473 in the range from its first appearance until late May 1996. Since they have previously planed to move from 6473 to 3235 under the direction of the Ministry of Transports and Communications, it became to be audible on 3234.8 in the 90 meter band. Reportedly after having changed its shortwave frequency, its signal was weaker than former one while being outside band.

The reason why I decided to return to be in Huanuco after about 10 years of my first visit, is needless to say that to visit the newest shortwaver, Radio Luz y Sonido. On 12/1/1995, I made a surface journey from Lima to Huanuco by Empresa de Transportes "Leon de Huanuco".
I decided to remain in a hotel located near the main square for convenience, because I had previously learned that Radio Luz y Sonido announced its postal address as "Jirón Damaso Beraun alfrente de Plaza de Armas". There were two hotels, one was the most expensive Hotel de Turistas which cost about US$25 about one night, thus I stayed another inexpensive one, Hotel El Paraiso which costed about US$5.
It was 6 PM when I checked in the hotel. As I had a little time until the dinner, I went to look for the announced address of Radio Luz y Sonido at Jirón Damaso Beraun 679 in front of the Plaza de Armas, but there was a book store of Church but no radio station. So I asked an employee where Radio Luz y Sonido was. She informed me that the add ress was exactly of the book store but it has been only used to receive the correspondences from audience, and the broadcasting installation was located at Jiron 2 de Mayo, just round the corner toward the Church. I thought it was a good chance to make just a pre-visit.

I knocked at the entrance door. A Sister came to open it. She asked me my object of visit, then I was allowed to enter the small station house installed in the corner of the Church garden. I was immediately interviewed during the evening transmission, before the beginning of station tour. The small building was simply consisted by a tiny studio, an announcing cabin, a vacant office, no more, but the board was decorated with a couple of colorful postcards sent from overseas listeners and station name made by red paperboard which identified itself "Luz y Sonido". After the transmission at 8:30 PM local time, I made an interview with the station director, Profesor Jesús Abd Pereira. In September 1993, Radio Luz y Sonido commenced its experimental transmission on the nominal frequency of 6473.

The station was established by the Bishop of Huanuco ("Obispado de Huanuco") with a primary objective of bringing the C hristianity to the rural urban communities in the Department of Huanuco and the neighboring departments. The station was inaugurated on March 14, 1994, under the direction of Padre Obispo Herman Artale Ciancid. Indeed, it is not a commercial broadcaster but a Christian station specialized in religious, educational and cultural programs.
As of January 1995, Radio Luz y Sonido has run at two slots: 1100-1500 and 2100-0130 from Monday to Saturday. On Sunday it had no broadcast. As it has been a new member of Christian shortwaver, the station has regularly borrowed several transcription programs, produced by various Christian broadcasting organizations in Latin America. Station staff also prepare local programs on folklore, the delivery of social service, and useful information for the communities.
All station staff were volunteers, and some students helped to produce programs, but were not paid. Sandy Martel, Cesar Augusto Cojal Caballero, Marco Antonio Salazar Livia, Gabriela Laos, were working at the station when I visited the station.

The station is equipped with a 1kW transmitter which was formerly used by the medium wave outlet of Emisoras JSV. This transmitter was modified by Jorge Ben avides Moreno to able to transmit on shortwave band. Its signal is fed into a 1/2 wave dipole antenna (11.5 meters high above the ground). Transmitting unit is settled at the back of Church building.
Reportedly, when the shortwave frequency was changed from 6473 to 3235 in late May 1996, the station also announced additionally a new operative frequency "1515 kc". But it was not confirmed that another transmitter was purchased exclusively for the medium wave outlet, or depending of time its frequency was switched from shortwave to medium wave using the same transmitting equipment.