Quote:
Originally Posted by Burr
1. Would adding a second HD1850 (for channel 13) be acceptable if mast mounted with the 1st HD1850 and DB8e? ...
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Hi - I think you may have missed the point of the UHF-VHF combiner. You can mix one VHF and one UHF antenna in the preamp, because the frequency range of VHF is different from UHF, and vice-versa. They cannot interfere with with other because they operate on widely separated frequencies.
When you connect the HD1850 to the VHF port of the preamp, you are blocking any UHF signals from that cable. So you turn a VHF-UHF antenna into a VHF-only antenna, and there is no conflict.
If you try to combine two VHF antenna signals they may add happily, or the signal quality could go down due to cancellation or added noise. Can't predict - too many unknowns. You can try it if you want.
If the two VHF antennas were widely separated so they were not electrically coupled (more than a few feet), you could send each signal to a separate tuner and combine them that way. The tuner would turn each signal into a digital stream that would be stored or streamed by your HTPC.
For the block diagram, you could look at the Silicondust website. They have some video presentations (which my privacy blocker won't allow through - so I can't tell you specifically what to look at). But it should be easy to find a description of the type of system you want.