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Physoc Project Proposal for use of the Radiotelescope David Kruss, Justin Dinale Introduction and Motivation The project will have a number of students working on it. The students we currently have on our team are either pure physics majors or are combining physics with electrical or mechanical engineering. We would like to use the radio telescope to give undergraduate physics students the opportunity to do some radio astronomy before they attend the annual Astrotrip, to get the maximum benefit from the trip. Several of us on the project have visited most of the radio telescopes in New South Wales on our Astrotrip but have done no radio astronomy. Our core project members are keen physics students and have skills in electronics, computer hardware and software and mechanical engineering. Outline of the project. Safety briefing and review of procedures. Rooftop. Clean and service dish – grease (or replace) bearings and actuators (if replacement is needed we would need to discuss the preferred method of doing so). Check limit switches/encoders. We would like to keep the servo control of the dish. Receiver room. Take an inventory of equipment. Test computer and servo amplifier and other equipment disconnected from the dish. Check roof-room cables for faults. We will donate a more powerful computer to the receiver room. If actuators and computer are working otherwise manually point dish onto a geostationary satellite with the Ku band feed installed. Tune a tv receiver to the signal. Repeat with C band. Do a drift scan of the sun with the 3 different feeds. Repeat with moon. Investigate sources of RFI at 21, 7.5, 2.5cm 21cm sky survey, perhaps limited to interesting features. Once we have accomplished the above we have considered the following. Investigating the effects of cooling a LNC. To do this we would consider building a container in which solid carbon dioxide pellets (dry ice) could be contained close to the LNC. Build and install a 2.4GHz feed for detecting wireless networks. Detection of moon bounce signals from the moon. Design a new computer dish tracking program or trial a off the shelf software package. Suggested safety modifications Installation of an audio/visual indicator to warn that dish is in operation. Wind meter to monitor wind speed from receiver room. Project funding When equipment is needed, we would seek to make an arrangement with the School, Physoc, Student Guild and Union and external organisations such as the ATNF.
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