Posts Tagged: dish

Build Day 8 – Mounting the Dish

01 October 2016

Mounting the dish on to the pillar and top plate has been the longest anticipated and most significant part of the build. It has also proved to be the most technically and logistically difficult and it should not go unnoticed that there have been many delays and much heated discussion about how to approach this…READ MORE

Wiring the Rotor – Part 1

25 February 2016

In our previous post, we discussed our progress with deciding on a theoretically sound signal chain. Before we cain finally achieve first light on this project, there is one more major electronics issue that needs to be tackled. This problem, although far less important than actually getting signal from the feed horn, could be far…READ MORE

Build Day 5 and 6 – The Motor and the Dish

29 October 2015

On the weekend of the 17th and 18th of October, two groups of people, headed by Freya, went down to Cornwall to make a large push toward completing construction of the radio telescope. On the Saturday, the struts were assembled together into the framework for the dish. The team also put in plenty of hard work…READ MORE

First Light… Kind Of

16 October 2015

Last Thursday, the newly formed science team for the 2015-2016 academic year met in the third year project lab at the University of Exeter to conduct the first proper test of the receiving equipment of the telescope. To test, Dr. Chris Brunt allowed us to use the 3m mesh dish on roof; similar in design to…READ MORE

Deciding Where to Place the Dish

16 March 2015

Having had the dish delivered to Caradon, we visited the sight to take a look and decide where we will put it. We wanted to select a location for the telescope taking into account interference sources, ground and distance to the control room. The only source of interference is a small power line at the…READ MORE

Building a telescope is simpler than we thought!

17 March 2014

During a recent discussion with a group of masters students at Exeter University, who have recently built a 3 m radio telescope as part of their project, it came up that they do not have any below ground support. Instead they have three weighted supports, calculated to withstand high winds. This idea was discussed in our…READ MORE

Initial Dish Designs

12 March 2014

To support the telescope we think we will need a concrete base, and the central pillar to extend under ground up to half the total height of the telescope, as can be seen in the image. We will then use four supporting rods attached to the central column spreading the radius of the dish and…READ MORE

Deciding on Dish Configuration for XRT-S

08 March 2014

Following a discussion with the East Anglian Amateur Radio Observatory (EAARO), (a group also currently building a radio telescope in the UK), we looked into the possibility of using a multi-dish configuration for XRT-S. This would give us greater resolution, as well as allowing the dishes to be smaller meaning cost of the dishes would…READ MORE

How do Radio Telescopes Work?

27 February 2014

Hydrogen gas emits electromagnetic radiation with a wavelength of 21 cm, which is what we are going to observe with our telescope. Radio telescopes use a large dish antennae to reflect the radiation from space into a feed held above it. The signals are very weak so dishes tend to be as big as possible…READ MORE