wait, so switching back and forth between 3g and 1x isn't supposed to happen? ...
I don't know. I was new to Verizon (since having a Motorola Star Tac from work back in the day) when I got my Droid(s). At my house, while sitting on my desk, I would get a 3g signal w/3-4 bars, and -78dBm signal. Only 2 miles away, at the intersection of 2 majour routes, I would get -52dBm...from what I understand, that's really good. That said, again, with the Droid on my desk at home, the 3G signal of 3-4 bars would arbitrarily drop to (0) bars, and stay there a few moments, then change to 1x and 2 bars. The 1x would gradually fade and I'd again have no signal, and it would eventually "fade" back to a decent 3G signal. I'm also within two miles away from (2) Verizon stores, and (2) blocks from a Verizon CO. All that to say that I "should" get decent signal where I am, and do at times, but whether the switching is more of a "status confirmation" (e.g. - yes your phone is within range of both 3G and 1x connection) vs. "status notification" (e.g. your 3G is weak, now switching to 1x), I couldn't tell you.
Speedtest.net results would vary from 200kb - 1.4Mb, all from the same spot. Just picking up the phone could alter the signal 10dBm in either direction...removing the battery cover would increase signal by 3-5dBm. Driving around town the switching was more active and in a few spots I'd get "no connection" messages. At mom's, also within that 2 miles, Droid just drops to 1x and 0-1 bars and stays there. Subsequently, my battery drained from full charge to 20% in just over 3 hours.
I was hoping that a firmware update would help the Droid manage signal better, but I think it just has a weak antenna. I made a homemade antenna mod which helped boost my signal to a stable -62dBm:
http://androidforums.com/motorola-d...rough-3g-1x-switching.html?highlight=homemade
...which leads me to believe its the Droid, and not the network.