| Construction |
A dual band receiver owned by Geodetic Observatory. Constructed
at TTI Norte, Santander, Spain. This receiver is used at Metsähovi
for geodetic VLBI observations. The receiver operates at two
different bands i.e. 8150-8650 MHz and 2210-2350 MHz. The receiver
front end consists of cryogenic LNA's and a bulky feed system and
polarizers at room temperature. This receiver needs a large
subreflector (with diameter of 1.7 m) which is placed in the front
of the original one, therefore simultaneous observations with
mm-receivers are not possible. |