The new BTS Master is an integrated multi functional base station test tool eliminating the need to carry and learn multiple test sets. The MT8222A measurement capabilities include spectrum analysis including smart measurements, precision return loss
Electronics Forum | Sat Oct 21 19:25:42 EDT 2006 | Ola
I assuming that you already have checked the fuses? Also, check all the power: +5V, +12V, +-24V, etc. We had to change our PSU once, after a major power-drop due to a thunderstorm. But you should be ok if you can pinpoint what type of voltage you are