My Antenna
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Here is a picture of my antenna(s) mounting, cable from preamplifier is temporary until I figure out the reception problem.
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Do a quick check to see if preamp power is getting to the amplifier module. Use your multimeter AT THE AMPLIFIER's signal out/power in connector to check for the +15 VDC from the indoor supply. Simply disconnect the coax lead from the amp and measure between the shield and the center conductor of the coax. Anything between 12 and 18 volts is expected.
If that passes, we've at least eliminated power to the preamp as a cause. You can then do the troubleshooting one of two ways: Either break it down to individual sub-components and verify each, then integrate one step at a time retesting at each or you remove or bypass a single component at a time and see when it starts to work. |
Go back to testing each antenna alone, and insert the UHF/VHF combiner to check it for each band.
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Do you have the new model 7777 with only one antenna input? Troubleshooting the new 7777: http://support.channelmaster.com/hc/...ing-correctly- http://downloads.channelmaster.com/S...77_7778_UG.pdf http://forum.tvfool.com/attachment.p...7&d=1436753605 Quote:
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Can you receive anything on either antenna without the 7777? |
Combiner
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What I meant on the coaxial cables crossing over is going into the house the same cable crosses it self in places. Going to take down antenna today and check connections and test. |
I haven't used that combiner, but as near as I can tell the switch should be off if a preamp is used after the combiner. If you made a test with the switch on with no preamp but the power inserter on and powered, there is a chance that you have damaged the combiner or inserter or both.
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May I ask where you purchased a DB8e that was received in that condition?
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Sorry to hear you got a lemon, but glad that you found the problem.
Good detective work, hsparks56! I have heard stories about returns being resold on Amazon. There is more than one listing for DB8e antennas on Amazon. Some say "Ships from and sold by Amazon.com." and others say "Ships from and sold by Techibble." or "Ships from and sold by UnbeatableSale, Inc." I would think the "Ships from and sold by Amazon.com." listing would be more reliable. I also see they are selling the older DB8 (no e) for less than the DB8e, and some clones like the FOCUS-8HD-90D, Xtreme Signal HDB8X-NI 8-Bay, and Dual Quad Bay Outdoor by Stellar Labs, Which listing did you use? Antennas don't ship well; the cartons seem inadequate. About half the antennas I have ordered have arrived with some damage. |
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Not a happy camper
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For troubleshooting purposes, run a temporary dedicated coaxial cable directly from the antenna's combiner unit to the nearest TV set. There's something going on here in your installation that isn't immediately evident and it is going to be necessary to break down the system to its individual components in order to understand what is going on.
That means: No amplifier, no external combiner, both panels aligned in a single direction at a time. Test reception. If you have stations in another direction, re-aim the antenna and retest individually. We have to learn what is and is not working. |
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Thanks ADTech |
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Without aiming both panels in the same direction, you don't really know if that is the cause of the problem or it is something else. At this point all you know is that one antenna works and the other doesn't, but you still don't know why. |
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Thanks AD Tech, rabbit73!!!! |
Glad to hear you found the issue (and that it wasn't the antenna after all).
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