UTMOST is currently being upgraded to UTMOST-2D — by bringing the long retired North-South arm of the array back into operations.
![](http://astronomy.swin.edu.au/research/utmost/wp-content/uploads/2019/12/Screenshot_2019-12-16_10-11-04-1024x534.png)
A completely new design for the antennas, amplifiers, signal transport and digitization has been built and tested over the last 12 months.
![](http://astronomy.swin.edu.au/research/utmost/wp-content/uploads/2020/01/WhatsApp-Image-2020-01-21-at-09.09.03-1024x768.jpeg)
In the third week of Janauary 2020 we had a crane on site all day, positioning two completed “outrigger” modules on the far ends of the North-South arm, and removing 6 modules near the center of the array for stripping and fitting with the new detectors.
The weather was kind to us — clear skies, not too hot and (very importantly) not windy!
One of the new “cassettes”, a 1.4 meter length of 8 dual pole 4-leaf clover antennas is shown below: 6 of these cassettes make a module, one of which is being put into position in the photo above.
![](http://astronomy.swin.edu.au/research/utmost/wp-content/uploads/2020/01/WhatsApp-Image-2020-01-22-at-14.47.45-768x1024.jpeg)
![](http://astronomy.swin.edu.au/research/utmost/wp-content/uploads/2020/01/WhatsApp-Image-2020-01-22-at-14.57.581-768x1024.jpeg)
![](http://astronomy.swin.edu.au/research/utmost/wp-content/uploads/2020/01/WhatsApp-Image-2020-01-22-at-13.58.33-1024x768.jpeg)