Bic,
I won't say that Walrus and I have attempted to give all models of LNBFs a trial, but the BSC621-2 from DMS International works fairly well to receive both C and Ku signals in the same application.
With a GEOSAT pro 1.2 M dish and a flat scalar and this LNBF, you may be able to achieve both bands (with limitations) with a motorized antenna.
The "socket at the 3-O'clock position" is sort of an accidental find.
I was experimenting with the BSC621-2 LNBF that Walrus loaned me to play with. I was trying to position the scalar ring for the optimum signal quality and through an inadvertent accident, I noticed that when I grabbed the outer ring of the scalar to try to hold it steady or move it slightly, the signal improved a very noticeable amount. So, with one of my fingers basically inserted in the outer ring, I was able to increase the signal reception.
Walrus was experimenting with his equipment and recalled my findings. He tried it himself and found the same results. So, he simply dug through his toolbox and found a "socket" of the right size that would fit in the outer ring and when pressed into it, would remain there. With a little experimentation, he found that placing the socket at a certain position, the signal improvement was optimized.
Please understand that this anomaly was found with a specific brand, size and model of dish and LNBF, so the results may vary with other dishes and/or other LNBFs.
Also, if you are having troubles getting Ku band reception currently with your setup, you may find the results of trying to achieve BOTH Ku and C-band simultaneously rather disappointing. Especially with a motorized dish. With a fixed point dish or if you leave your motorized dish aimed at one particular satellite that offers both bands, you would have better luck when starting out with this experiment.
I personally had barely touched on the endeavor of achieving both Ku and C band signals on a "mini-bud" when my new AZBox receiver arrived. I spent the remainder of the good weather months left in 2009 relocating my dish to a more optimum location for best LOS regarding the Ku band birds and getting to know my AZBox. Of course, everyone pretty much understands what happened to the good weather since the latter months of 2009. Next spring (if we ever see one) I will resume my own experimentations with Ku and C-Band "mini-bud" reception.
If you use the search engine for this forum (and not merely Google Search) you should be able to find more explicit information from Walrus on this subject, right here within this forum.
You might catch him on board here in the next few days or the following weekend. But, understand that we are all still trying to dig ourselves out from under all this snow. Walrus and I both live outside of town quite a ways and we often have to concern ourselves with clearing our own roads.
If I get a chance to talk with Walrus in the next few days, I will put a bug in his ear regarding this thread. If he has time, he may drop in and post some more specific and detailed information for you.
RADAR
