The ExtAntâ¢ by WirEng® is a top quality, state of the art single external antenna adapter cable for the Bluegrass Cell MC551 USB Modem, with low loss gold plated center-pin connectors on both sides. The cable measures between 12 to 18 inches, and connects directly to the Bluegrass Cell MC551 USB Modem on one side, and has an FME Male connector on the other (will match with an FME Female connector for attaching to antennas, direct-connect amplifiers, etc.). For maximum reliability and minimal RF loss, the matching connector to the Bluegrass Cell MC551 USB Modem has a gold-plated center pin, and the same is true for the FME Male connector on the other side. The Bluegrass Cell MC551 USB Modem ExtAntâ¢ is recommended for adapting a WirEng® antenna or direct-connect amplifier to your Bluegrass Cell MC551 USB Modem. We strongly recommend that before purchasing the ExtAntâ¢ you make sure that your Bluegrass Cell MC551 USB Modem does have an external antenna connector for the WWAN/Cellular bands. Do not purchase the ExtAntâ¢ unless you see such connector (usually concealed by a small cover, or available by removing the stub antenna if your device has one). If your device has a second antenna port, because of its MIMO feature, then you will need to purchase two of these adapters as in MIMO systems the signal is split into two parts (you will still see a signal increase with one antenna, but almost no performance improvement). If your Bluegrass Cell MC551 USB Modem has a diversity or aux RF feature, then the purchase of a second adapter is recommended, but not required. The ExtAntâ¢ by WirEng® is made in the USA with domestic and imported components and includes a three-month warranty period.
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