How to test an lnb

[dptw27]

How to test an LNB
found this on another site

I think my LNB is faulty. How can I test it?

The only way to fully test an LNB is to fit it to a suitable d*sh, align the d*sh and LNB and connect a satellite receiver. Then check to make sure every channel is there. If no channels are missing and if it continues to work through a hot day and a cold night, the LNB is fine.

However, the reverse is not true. If some channels appear to be missing, this could be the fault of the cable, the receiver or the d*sh (distorted or misaligned). It does not prove that the LNB is faulty. So then you need to use a process of elimination by swapping the d*sh, the cable and the receiver (for a different make/model as some receivers won't work correctly with some LNBs).

Can't I test it with a meter?

A cheap satfinder meter simply looks at the average strength of all frequencies. It will not tell you if some frequencies are missing. An expensive meter looks at a specific frequency (sometimes more than one) but it will not tell you if some frequencies are missing.

Also, most meters rely on battery power. If the battery can not supply enough current to the LNB, it may give a false reading.