What is the downconverted frequency?

N1YD · 2020-05-25T20:31:26.295Z

The Dreamcatcher’s antenna assembly is a “Low Noise Block Downconverter”. The LNB’s antenna receives the satellite transmissions on 12.1032 GHz, but what frequency does it put into the coax?

Syed · 2020-05-26T00:08:51.411Z

Just subtract whatever the LO is on the LNB.

12103.2 MHz
09750.0 MHz
——————-
2353.2 MHz

That’s assuming the LO on the LNB is 9750 MHz.

N1YD · 2020-05-26T01:19:59.674Z

Thank you Syed. Anyone who wants to calculate the signal loss between the LNB and the Dreamcatcher would need to know this.

jimwatt · 2020-05-31T16:19:52.400Z

Syed:

12103.2 MHz

12103.2 MHz would be high band so if it were an ordinary satellite receiver it would be activating the 10.6 Ghz Local Oscillator in the universal LNB so 1503Ghz - There again Syed designed it so I expect he is right.