You can find many different communication gadgets available in the market. One of the most interesting is the Dual Band Signalboost Extender.
Nothing is as bad as having state of the art phone but no signal to make or receive calls. If you’re looking for a permanent solution, get a Dual Band Signalboost Extender. By mounting the included antenna of the Signalboost near a window and running the coax cable to the base booster unit, you can get 1500 square feet of prime signal area.
The frequency range is 824-894 MHz/ 1850-1990 MHz and can boost the power of any phone coverage in the USA except for Iden and Nextel. The Extender can enhance the strength of voice calls and it works with high-speed data transfers using EDGE, 3G and EVDO.
It can improve the cellphone signal drastically; it can be installed in minutes and has multiple mounting options with the hardware and cabling included. The device works with all CDMA, TDMA and GSM Networks. The Extender can reduce call dropouts and disconnection largely. It also amplifies multiple cell phones and data cards at the same time.
The Frequency is 824-894 MHz/ 1850-1990 MHz and has a gain of 50dB/50dB. The Linear output power and maximum output is +30dBm. The noise figure is 3.5 dB nominal with Flatness of ± 2dB/± 2dB and isolation > 90 dB. The power requirements are 110-240 V AC, 50-60 Hz and 0.6 A Maximum. The product weighs 0.29kg. Check it out in your local gadget shop.