arXiv:2611.00426v2 Announce Type: replace Abstract: The upper mid-band, also known as Frequency Range 3 (FR3), spans 7.125-24.25 GHz and is a key candidate band for sixth-generation (6G) wireless communications. However, channel measurements in industrial environments remain scarce, and the 3GPP indoor-factory (InF) channel model, developed for omnidirectional antennas, has yet to be validated across the FR3 band. This paper presents a wideband channel measurement campaign in an industrial production hall, covering 135 line-of-sight (LOS) positions at 1-18 m and 30 non-line-of-sight (NLOS) positions behind an industrial robot at 2.5-16.5 m across 6-12 GHz. In LOS, the path-loss exponent ranged from 1.87 to 2.12, and the close-in fits agreed with the 3GPP InF-LOS model to within approximately 2 dB. However, shadow fading was only 1.4-1.7 dB, compared with the model's 4.3 dB. In NLOS, the robot caused an excess loss that increased from 10.3 to 13.0 dB between 6.5 and 11.5 GHz, consistent with diffraction. Blocking the direct path raised the mean directional delay spread from approximately 5 to 25 ns, close to omnidirectional values. These results indicate that the 3GPP InF model captures mean LOS path loss well but overestimates the variability of beam-aligned FR3 links, and that blockage loss in FR3 is frequency dependent. The dataset and processing code are publicly available.