I have a UM175 usb modem that I use on my HP laptop when I stay at my cabin in the mountains. I'm in the boonies and use a cellphone booster to get service. Without the booster I get 1-2 bars signal strength, with it I always get 3-4 bars and good 1XRTT service. What's unusual is that about 50% of the time my modem will find EVDO service, and I register the same 3-4 bars on VZAM. Obviously I'd rather have this service as it's 10-20 times faster than 1XRTT. Can anybody tell me why it only shows up half the time? Is there a setting I can change somewhere to get it 100% of the time? Is it a network or tower issue that limits my connection, or maybe a signal strength thing? It seems the best time to get the EVDO service is first thing in the morning. I'm really curious about this because I'm trying to decide my best option for permanent cabin internet access. If I can get the EVDO service I'll stick will Verizon. If not I'm going to have to go satellite. Thanks.