At the risk of not answering your answer directly....if you are
interested in sideband reception, I wouldn't go for either of these
radios. That is the weak point of both.

Here is a link to a review of the 909 / 400PE / 7600g.'

http://www.radiointel.com/reviews.htm

check the Endless Debate review.

There is also a separate review on the Sangean at radiointel

I have had both of the radios you are asking about. For a few bucks
more, you will have a better radio. If you have to pick between the
two, go for the 400PE.

good luck