|Submitter:||Jan Geralt Bij de Vaate|
|Description:|| The hot-cold test facility received its hat! The 'carport' on wheels is filled with microwave obsorbing material, providing a hot noise source for the testarray inside. And when rolled away, the cold sky will be seen by the array. |
The ratio between the two measured noise powers gives us the noise temperature of the test array.
(See also Daily image 26 August)