Speaking of antenna installers, I use Crawford Satellite & Electronics out of Pinole. They have done installation work for me twice in the past couple of years. (You don't think I put up those tall masts, do you?)
During the gusty winds this past Saturday, I lost the other reflector off of my XG-91 UHF antenna. A young lady rang my door bell and said she saw a piece of my antenna fly off in the wind and it landed in my driveway. I thanked her and went to retrieve it. Luckily, it didn't hit anyone or break anything! Like the previous one that came loose and dropped to the ground, where I found it hanging in a tree in my yard, this one is still in good condition. I can't blame Crawford's for this as I put the antenna together before they installed it. Apparently I didn't tighten tight enough.
(See photo below.)
When the first reflector came off, signal strengths didn't drop, but signal quality went down. Now with no reflectors, signal strength has dropped and signal quality is terrible. The UHF stations from Walnut Grove have disappeared.
I called Crawford's and they'll be down to replace the reflectors during the first opening in their schedule where rain isn't forecast.
While the installers are here, I'm going to have them install a new antenna that I found on eBay at a very reasonable price. It's a LAVA Omnipro HD-8080 omni-directional antenna. I bought it for just playing around, but it works pretty well. I've picked up KICU 36 from the South Bay and KRCB 22 from the North Bay here inside the house, so I figure it's worth mounting up on the mast. I'll let you know how well it works after it's installed.