It's a very similar style.
I rank them like this...
Radio Shack DA 5200
There are similar from Funke, Digiwave, Monoprice, and GE. Some of which Ive tested and physically inspected GE, Monoprice, and others I havent.
However I can recommend the 3 listed. The Philips mounted sideways with the pointy side up gives you something on VHF High....and also has the best weatherproofing materials and features.
The Radio Shack DA 5200 and the HD 650 have great heavy duty articulating arm mounts, which I like better than the Philips MANT940's.
You can get the HD 650 for about $15 to $30 shipped on eBay, so it may be the best value.
They are all pretty good on UHF, and their mounting versatility and accessories encourage looking for a sweet spot, which helps greatly as well.
Hope that helps.