I'm having signal quality issues on some channels and was tracking the situation to a Verizon brand COAX splitter, which seemingly randomly began attenuating a narrow band of frequencies around 690 MHz. I replaced it with this device and all my problems were gone. In fact, when comparing the performance and signal speed of the QAM and MoCA, I noticed a slight improvement over Verizon's (high quality) splitters. In short, if you don't mind a bit of a high price tag and a massive form factor, these splitters seem to work really well.
Antronix VR900B/AC 9-Port Bi-Directional Cable TV Splitter Signal Booster/Amplifier with Zero Signal Loss, Active Return, VoIP Telephone Bypass Port, F59 Terminators
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Legrand OnQ VM1002 1x8 Enhanced Passive Video Splitter for Optimal 1GHz Performance
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VINTAR EU To US Plug Adapter 3-Pack For Easy Travel: Europe To USA Converter For Spain, France, And More, Compatible With Type C/E/F Plugs - European To US Power Adapter Solution
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EXuby Digital Converter Box For TV With RF/Coaxial And RCA Cable For Recording And Viewing Full HD Digital Channels Free (Instant Or Scheduled Recording, 1080P HDTV, HDMI Output, 7 Day Program Guide)
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