crc9 and uhf does it 3g and couple other questions?

first whats stronger rg-58 or rg-174 when going long length say 5 meters for 3g crc9 3g dongles? (mainly huawei dongle e160e)

crc9 to uhf antenna work for 3g dongles?

crc9 socket has two soldered tabs on back what is that about, is it when the crc9 is plugged in the middle crc9 male pin crosses these somehow? 

oh and 1 more question what is the crc9 socket on the huawei pcb called? cant find replacement socket due to no-knowledge