silver super mini 8 HELP :(

ok so i took you guy advise and bought a super mini 8 single cable. i am now running one antenna the 2 foot one that cam with the truck. still wont see home till the end of the month to get my astatic liner loaded white 1k antennas and astatic noise canceling mic.
anyways my problem is i can hear people now and been yelling braker 1-9 can i get a radio check, any of you drivers have a copy of this radio? for 2 days now at every truck i have seen. and not one response. i used to get a few here in thier when i was running the duel non matching antennas off the duel non factory coax that the previous driver left in the truck. but now i get nothing. any ideas or sujections would be helpfull. i bought the silver super mini 8 coax rather then the copper cause i couldnt read a diffrance betwwen that and the K40 expensive stuff.

 

I changed the elbow out from the 1.5foot antenna and put it on the 2 footer and i got a answer in the 15 miles between the shipper and the pilot im bout to lay down at for 10. is it possible for a 90* joint to go bad?

 

im currently running a cobra 19 no clue what my swr readings are. i am tossing it in the sidebox soon anyways. i have a cobra 25 from the early 80s heading my was via my uncle whom used to be o/o back in the 70s and 80s. when i get that and my astatic liner loaded 1k white antenna and astatic 636l mic i plan on going to a shop to get them to tune my antenna to the cobra 25. im not letting just anyone open that box. i want to go to sparky or someone simmiler that really knows thier stuff to get the radio peaked and tuned. barrow an antenna? i drive otr so does my whole family problem is they dont care about keying up and hardly turn thiers on anymore let alone are never in the same state at the same time all ways 2 days off lol. im in Tx 2 days later dad calls im in tx lets go eat. umm im in TN missed me again. o well maybe next time.