Established in 1995, Guanghi Optical Instrument Co., Ltd. is a joint stock China radio telescope manufactuer and designer engaged in the manufacturing and marketing of a wide variety of Optical Instrument and products. Our products are widely applied in the education of students, research in lab, entertainment and science explore. During more than one decade's development, our products have awarded the CE certificate. We also have our own quality control system and customer' service system. So we can accept the order against customers' samples, specifying designs, specifications, and packaging requirements. We also prepared to accept the OEM and custom radio telescopes with customer's own trade marks or brand names.

Have hours of fun learning about the wonders of Radio Astronomy. Make a study of the principles of microwave radiometry through the use of RTL-11. This simple instrument is easy to assemble and operate. It is capable of detecting solar radio noise at approximately 11-12 GHz as determined by satellite receiver LNB (low noise block converter).
RTL-11 can be used to:
Demonstrate remote measurement of temperature of various objects
Demonstrate that the human body or hand generates solar radio noise
One can use a data logger connected to radio telescope output. The solar noise magnitude can later be plotted vs. time on a PC
Other than astronomical applications can be found as various objects absorb, radiate, or reflect microwaves in a manner different from that at visible light
RTL-11 includes:
Parabolic dish (32 cm)
11 GHz LNB
F-F coaxial cable (2 ft. long)
IF in-line amplifier
F/F male/male adapter
Indicator box
AC/DC wall adapter
Instruction manual

Tune in to the universe at the dish and experience the awesome sight of this icon of Australian science, the achievements of the astronomers that use the Parkes telescope and the grandeur of the universe that they explore. Find out 363 days a year why the Parkes telescope is more than just a movie star.
Built virtually in the shadow of the 64 metre dish, the visitors centre primarily caters for public curiosity about the radio telescope and astronomy, through contact with over 100,000 visitors per year. Star of the movie "The Dish", the telescope is still a world class instrument used by Astronomers from around the world to explore the Universe.
Open: 8.30 am to 4.15 pm every day except Christmas and Boxing Days
Free entry
Great view of the telescope
Displays and exhibits
3D theatre (entry fee applies)
theatre about the telescope (entry fee applies)
Licensed dish café
Shop with Souvenirs, books, posters and science toys
Free BBQ and Picnic facilities
Located 20km north of Parkes, 100km south of Dubbo on the Newell Highway, New South Wales

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