Whenever I change LNB settings in my receiver, i lose signal and have to re-scan to bring it back, actually run a scan, not quite sure from your posts if you're actually running a scan after changing the LO or not, or just looking at signal and quality levels. You could try setting the LO Probably the best thing to do would be to put the Avenger PLL LNB onto your dish. I have that same LNB and it works real good. One thing you could check that I don't think was mentioned is that your LNB voltage for that sat. is set to 13/18 V and not just 13 or 18 alone, if it's not set to both it'll only scan one Thank you for the reply. I just ran a scan. I set 10600 and 22 on, it lost signal, however I went ahead and run blind scan. No returns. I then cheked for reception on that sat. 83w and did not have reception. Went back in and set to 10750 22 off an checked channels and had them back. As I posted before I listed the incorrect specs. for the lnb that is currently on the dish. Only thing that I know for sure,(only one LO of 10750 is listed on the little sticker on the lnb.). I tried to go back thru my emails from over a year ago, however my yahoo mail currently is not displaying the area to choose next page etc. I also thought about switching out the current lnb to the avenger pll321s-2 which I have...Instead I ordered a GEOSATpro SL1PLL LNBF that way I will have a geosat receiver and lnb in the system. If I still have problems after that then the lnb issue will be settled. I was able to get all channels on 83w scanned using the preprogrammed TP's. The only issue at this point is why when the other sats , which are currently 10 of them, scanned fine on blind scan. I ran a blind scan on 87w had 190 channels scanned, ran a blind scan-detailed and the channel count went from 190 to 222. I recalled somewhere reading Brian saying that the detailed scan was a more in depth scan and would find more. Once agin thank you, Sam