Thanks Syed. The lnb really is quite special and is highly under rated. It was based on a highly successful LNB that is sold to high end operators, its not a cheap LNB… For all the guys out there who believe the total rubbish that is advertised on boxes, take it from me its complete Horse S**t on 98% of LNB’s specs out there. Good MER,G/T, quality figure depends on many factors and also environmental conditions. Any NF lower than 0.5dB over the full BW cannot be achieved FACT! unless you start cooling it to <<< -40C, the best GaaS Fets are 0.35dB NF at SPOT frequency and this does not include feed and lens losses, plus the fact its optimised for over 20 percent bandwidth. Bullseye in terms of RF performance (NF, Xpol, gain stability etc) is pretty much the the best on the market, Syed asked for the impossible which was to get better stability than a 1ppm TCXO. We actually base it on a VERY good TCXO and make it MUCH better, in production its initially referenced to GPS as this is the only timebase we could trust. I am not going to say how its done but there is a lot of math and time put into the product to achieve it once it leaves the factory. It was also designed to be cost effective and built in volume so no space for OCXO etc. It is programmable through the reference port using a custom protocol, but was never officially published and it can be digitally tuned and altered real time within about =+/- 100kHz around the Ku LO in approx 100 - 200 Hz steps at Ku!
In theory a simple tracking loop can be built from SDR to LNB to auto tune out offsets to maintain lock on narrowband channels to compensate for receiver drifts of other equipment. It also has memory where users can offset and store offsets alongside all its calibration coefficients.
RF performance in MER terms (we test on standard DVB-S2 channel) there are very few LNB’s on the market that get close.
If you are going to take it apart to butcher the LO with huge offsets (with the exception of wanting an external reference port) then don’t bother, buy a $3 LNB.
To get something other than the standard output then build a simple downconverter and use the reference output to lock the LO. You will need to amplify the LO as we designed in loss to protect the LO from transients and voltages.
You should give Syed more credit for getting this product designed and completed as even 10,000 only takes us 1 day to build so he invested a lot of personal money in the development
Hope this helps