I got the antenna today.It's similar to the RS groundplane for scanners.
It's made by Wintenna, info below:
Scan Master Multi Wave 30-1200 MHz
Our best base station scanner antenna. Multi wave resonant point for all scanner bands. Highest gain and performance on Lo-Hi / VHF / UHF / Police, Fire, Telephone, and Cellular phone bands. Available with in line 25 dB 12v DC amplifier.
Model 150 with cable 25' (7.6 meters).
Model 150A with amplifier and cable 25' (7.6 meters).
Model 150X with out cable.
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It's not much to look at.It already seems to perform better than my RS discone.Your mileage may vary.The coax is already connected to the base of the bracket.You just need to install the radials (solid aluminum),and attach the fiberglass whip.The coax is the weak link, it is RG58U.The antenna still seems to work better than the discone I had with RG8U.I will eventually change the coax on this one.Anyways, looks like this antenna is a low cost alternative to a discone.
I don't listen to Detroit at all,it's so busy there I wouldn't have time for local stuff.Anybody that wanted to would have a field day from Windsor.
Hope that helps.