I use a
Birdog and find it very accurate and precise. I have not tried the other Signaloc Pro meter. Some satellites require the use of a universal LNB - but if you are only finding BEV,
DTV and DN you won't have any problems. The Birdog
does have a few problems with certain birds (like Nimiq 82 for instance). There are several threads in the forum dealing with these issues.
kat