Hello everyoneI have an E1550 3G modem which I now find slow. So, I need a new modem which is at least 7.2 Mbps or 21 Mbps and uploads of 5.76 Mbps, supports an external antenna, and supports the 1900 MHz 3G band along with 2100 MHz. Budget - Rs. 2700(max)The options available to me are - Huawei E122 - quoted 2600 on ebay.inHuawei E173 - quoted 2450 on ebay.inBut the above 2 modems do not support the 1900 MHz band in 3G and the last one does not even support an external antennaHuawei E176 - seems to fit my needs but cannot find an online store for this model.I came across -Huawei E1762 - being sold for 2600 - supports all that I need but have no clue on how the modem is.. Some say its pretty bad(slow surfing speeds, frequent disconnections, etc.). Can anyone please comment? and UMG 1831 also fits the requirements but its no longer affordable.. Available at an online price of about Rs. 3300. (was available for Rs. 2700 a month back.. **sigh**)What do you people suggest? Which is the best modem as per my requirements? and if I have to drop that requirement of 3G frequencies(which I dont really want to but have no options) then which is the best modem out of E122, E173, E1762 ?