Cellular/Wifi Antenna Selection

Hello,

I'm purchasing some new equipment for Sprint Cellular broadband. My local tower has both band 26 (814Mhz - 894Mhz), and band 25 (1950Mhz) enabled.

I'm looking to purchase a 2.4Ghz wifi grid antenna for the band 25 signal. They work great even with the frequency mismatch, but I'm having trouble choosing one from the website.

1) What is the difference between the two parabolic grid antennas below? The descriptions appear contradictory with the 14dbi and 24dbi. Which is it?

Teletronics 15-551 14dBi Reflector Antenna 2.4 GHz 24 dBi (15-551)

Teletronics 15113 14dBi Reflector Antenna 2.4 GHz 24 dBi (15-113)

2) I also see products from pacific wireless and laird that look identical. Is there any difference? What would you recommend?


I also want to pickup a Yagi for the lower frequency band 26 signal. I was looking at these. Are there any others that would be recommended?




or

Wilson Electronics 311129 800-900 MHz Yagi Cellular Antenna (311129)

Here is one final question. Are there any issues with using a 50 ohm 2-way splitter/combiner to connect one 2.4Ghz grid and one 800mhz-900mhz yagi to the same single cable run? Is there enough separation between the two frequencies ?