AboutNagy George Expertise Bsc. in Electronics and Communication engineering. Satellite dish installer, trouble shooter and Quality Auditor for 12 years. Author of the Satellite news article in the "satellite Guide Magazine". Member of the satellite club international (SCI). Member of the IEEE (Institution of Electrical and Electronics Engineers).
Member of the Australian Institution of Engineers.
Expert in signal distribution on many TV sets. Deep knowledge in related fields such as CCTV (closed circuit TV), surround sound and speakers.
Having said that, I have no experience in TV repair.
Expert: Nagy George Date: 9/29/2006 Subject: Direct TV signal strength
Question I have an older dish and have recently installed it at another location. When the dish is aligned, I get a strong singal strength (90 and above) on a few of the transponders but on more of them I get a signal that fluctuates every second anywhere between 0 and 90. Often it goes from 0 to around 18 to 50 something then 0 then 80... its all over the place. I've tested the wire with an ohm meter and it seems to be good. Fine tuning the dish direction does not seem to help - just decreases the max signal strength. Have you ever seen a signal strength that jumps around like this? What could the problem be?
Answer Brandon,
I am not sure what band you are receiving (I take it as probably Ku band) and what type of polarity switching exists on the dish but actually the problem could be polarity related (it's the alignment of the device in the centre of the dish and it's operation). I would suggest to see what effect replacing this device has (it's called LNB or LNBF depending on what you have installe)
