[rainman]

Originally Posted by ayelvington

I just swapped out the classic LNBF installation on our dish at work for the integrated BSC621C C/Ku band dohicky. The point was to get away from the moving parts and use voltage switching for polarity.

I used an Agilent spectrum analyzer to help out with the phase angle and focal point, but ran into an issue.

It wasn't difficult to set the rotation and depth of the LNBF using the Ku band side because the signal was HUGE and the sweet spots were obvious. Unfortunately, the C-band side was significantly smaller and I'm not sure why. I tried depth settings, but there is only so far you can move that doer without having to take the entire support mechanism apart.

So, here're the questions: Are C-band transponders typically at lower power levels? Is there a magic process of measurements that I can take on the dish to figure out where the C-band sweet spot should be?

The plan is to have a digital receiver as the primary receiver, and connect an analog receiver to the IF output of the digital receiver for those odd moments. This configuration has worked in the past.

Many thanks in advance,

A

what size of dish are you using. it's hard to receive c band on anything smaller than 6 foot.