Electronics & Phones
Channel Master CM 9521A Complete Antenna Rotator System with Infra-Red Remote Control for TV Antennas.
Bias-adjusted across 213 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Electronics & Phones.
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How the score was built
- Amazon ratings
- 213
- Raw star average
- 3.8 / 5
- Bayesian avg
- 3.96
- Reviewer-graph z
- 0.707
used for the Bayesian percentile
unadjusted Amazon mean
raw rating shrunk to the category prior
bias-corrected vs. each reviewer's baseline (0 qualifying)
Buy it: View on Amazon →
Same category · Electronics & Phones
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