Quote:
Originally Posted by rainman
the transponder is weaker for the pbs stations so you must have good dish alignment to receive them.  |
I used to think this too, but I don't anymore. Those 2 transponders are really about the same strength, and if anything I'd think that the 12180 transponder should be easier to lock since it has less nearby interferrence. However I agree, that at times I do have a bit more difficulty with the 12180. I don't think the problem is due to signal strength, but I don't have another explanation.
Anyway, I just did a scan of H and V, and highlighted the Montanna and PBS signals (note this was done with my Fortec 90cm with the Sadoun lnbf that is 2-3 MHz low in freq), so the frequencies are a bit low in the scan, so the 12180 shows up at 12176.?, and the 12145 shows up at 12141.7 , ie both about 3 MHz low.
You can see that on my 90cm, the 12180 is actually a bit stronger than the 12145 Montanna peak.
I also just did a similar comparison with my 10' dish. On that, the Montanna peak is slightly stronger, but I think that is because my polarity is a bit off on the vertical side of that sat. But in both cases, the 12180 signal is a nice strong signal, and there should be no problems with it.... however I sometimes do, and I'm just not sure why.