I'm looking into picking this up for interviews. Just browsing B&H's website, I'm lost in a myriad of options - which one to get?

This one?
Sennheiser | EW 100 G3 Series Dual Basic Kit (A / 516 - 558 MHz)

or this:
Sennheiser | EW 100 G3 Series Dual Basic Kit (B / 626 - 668 MHz)

or this:
Sennheiser | EW100 G3 ENG Wireless Deluxe Kit | B&H Photo Video

Sennheiser | EW100 G3 Wireless ENG Kit (A / 516 - 558MHz) | B&H

Sennheiser | EW100 G3 Wireless ENG Kit (B / 626 - 668MHz) | B&H

Which bandwidth?

Call Sennheiser and they will advise you about what frequency is best in your area.

I'm lost in a myriad of options - which one to get?
Which bandwidth?

Not long ago I went through exactly the same process. It wasn't until I came across this site that I was able to decide: Find Available Frequencies (http://www.sennheiserusa.com/findfrequency/)

-- peer

Peer, I checked out that site and inputted various local zip codes (ie 94110), but what does it all mean?

Both ranges (516 - 558 MHz) and (626 - 668 MHz) seem occupied. So how do I decide which one to get?

Peer, I checked out that site and inputted various local zip codes (ie 94110), but what does it all mean? Both ranges (516 - 558 MHz) and (626 - 668 MHz) seem occupied. So how do I decide which one to get?

Sorry to get back to you so late. Working in the San Francisco Bay Area, I decided to get the G block frequency (566-608 Mhz) and so far haven't had any problems with it.

-- peer