I am trying to get LTE. While I realize 0mv * 10dBi is 0, would that possibly give a few mv to boost?
It depends on WHERE that LTE site is that you are trying to reach. IF an additional 25 feet brings your remote antenna "in sight of" (over an obstruction the the signal path) that LTE site, then it is a good change.
LTE -- Long Term Evolution, 4G LTEhttp://en.wikipedia.org/wiki/LTE_(telecommunication
LTE is a standard for wireless data communications technology and an evolution of the GSM/UMTS standards. The goal of LTE was to increase the capacity and speed of wireless data networks using new DSP (digital signal processing) techniques and modulations that were developed around the turn of the millennium. A further goal was the redesign and simplification of the network architecture to an IP-based system with significantly reduced transfer latency compared to the 3G architecture. The LTE wireless interface is incompatible with 2G and 3G networks, so that it must be operated on a separate wireless spectrum.