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this morning, the channels all came back on mysteriously after a channel scan. I did not do do anything different except a channel scan almost every hour. there is still a 2 sec pause between changing channels where the screen goes completely gray.
fingers crossed the channels remain tomorrow morning, I'll report on progress.
also, no response from tivo support yet.
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Now that it is back, what sort of levels are getting on most channels.
Peter.
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hey Pete, lost all channels again this afternoon, but this time a scan brought them all back :-|
anyway, signal levels:
7 - 71
9 - 73
10 - 75
OneHD - 75
ABC HD - 69
ABC1 - 61
ABC2 - 61
ABC3 - 61
SBS HD - 67
TVS - 69
7HD - 69
7TWO - 69
9HD - 70
GO! - 73
hope this helps
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also got a call from tivo support saying the level 3 team have still not responded to my case yet.
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The levels in the 70's are ok, the ones in the 60's are low.
Unlike analogue signals where even a poor signal will show some picture, Digital signals have a cliff where once a level is below what is needed you get no picture at all.
If you are already borderline during the best conditions, it would not take much to change atmospherically or some other external influence to make you lose your channels.
Having a low signal level and/or low signal quality would certainly cause issues similar to what you are seeing.
An amplifier would help boost the level, but would only work if your signal quality is ok (boosting a poor quality signal will not really help though).
Peter
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purchased a GME kingray MDA20L amp, will install this weekend and see if this improves my dodgy signal.
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Cool, it should increase the signal level on those that are low.
The only thing is, if you have a signal quality issue (aerial or cabling fault) then it may not make it better and could even be worse as amplifiers amplify both the signal and the noise...
Good luck.
Peter.
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hey Pete
installed amp yesterday using power pass-thru f-type splitter. all connections are crimped f-type using RG6 quad shield cables.
applied power to amp and lost all digital reception even after numerous rescans on tivo and other connected tv's on other outlets. Also analogue channels showed massive gain (noise) on all channels. Digital channels did not exist anymore. Checked amp, power is going to it fine (led was alight) using the supplied power injection plug.
removed amp and power, digital channels are back but with low signal levels.
what did i do wrong?
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It sounds like the signal quality is not good enough, amplifiers amplify both the signal and the noise and will not work if the signal to noise ratio is too low.
Unfortunately is sounds like the issue may be with your antenna or cabling.
Peter.
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I tried two different brands of amplified splitter when I rewired our place, and neither worked. The guys at the TV aerial specialist couldn't suggest why either. The analog TV reception was much worse, or completely gone, on all channels. I never did figure out what the reason was, and just decided to live with the slight noise on the one weak channel (Prime TV). The only thing I could think of was that the input signal was too high from the antenna on the good channels, overdriving the amp. Perhaps a grounding or ground current issue.
Probably not relevant to your case though.
I presume you are talking about a mast-head amplifier since you mention a pass-through splitter?