Datasheets with a bunch of untested numbers are useless. The lnb is a small part of the total noise. http://www.satsig.net/noise.htmelko wrote:You can always check the manufacturer's datasheet for specs on the low-noise amplifier. I have seen figures as low as 0.5dB for the 3-6 GHz range.
Ad blocker detected: Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker on our website.
Discussions about low-noise blocks, waveguides, horns and other components used at the prime focus of your reflector dish.
Well, I don't know about that...companies like macom wouldn't be in business very long if they were publishing bogus numbers.DirtyHarry wrote: Datasheets with a bunch of untested numbers are useless.
Background noise + 1st stage amplifier noise are the most critical because after this, the signal has been amplified and any additional noise is small in comparison.DirtyHarry wrote: The lnb is a small part of the total noise. http://www.satsig.net/noise.htm
Macom and a few others may give the environment test information the spreadsheet is made from if you ask for it. ALL noise in microwave system is critical,,,,,no matter where it comes from.