Scanner antenna VHF only vs multiband

I'm going to be installing my BC355N scanner in my vehicle. All but one of the frequencies I will be monitoring are in the 151-162 MHz range. One frequency will be in the 800 MHz range. Would I be better off getting a multiband antenna like the Larsen NMO 150/450/800 or just a VHF whip antenna since I only will be receiving one 800 MHz frequency.