Horrible SWR

hey,
i bought a new cobra 29 that was tuned, and it worked great, the SWR meter on it said it was great, i have a new antenna, and new coax, new mount and all, it was a complete upgrade, well something on the CB died, i think im going to get that one fixed some time this week, anyway, it died, and i think the culprit was high SWR, because, someone was saying i need to tune it who i normally talk with, because i could get out far, but not hear, ANYWAY,
i plugged in a different CB and went to tune it, the SWR was above 3.0 so i tried tuning it, replaced the coax, tried different ground combinations, i did a lot... and the SWR wont drop below 3.... anyone know what else i can do?

also... would a different CB have a different SWR?

 

i got the standard noise, but i couldent receive peoples signals, if they were more than a mile away, and i also had to have the squelch all the way up to hear them anyway, Well my cobra 29 i cant calibrate it anymore, it stopped putting out enough power to even let me calibrate it, i need to get it repaired,

At one point i had it down to 1.2 and now i cant get it below 3 i replaced the antenna, coax and even the mount... its al basically new, ive even tried 2 and 3 cables. im going to try changing location... but i did have it at 1.2 in this location...

 

wow... dont even remember writing this... my mobile set up is currently amazing... on side band i talk just as far as most of the base stations and i on am i talk and hear great! ive learned a lot since this post i guess,


i dont know much about the oil cooled antennas, i use wilson silverloads and they perform amazing. a problem after the tune up could be the guy had no idea what he was doin, or he could have turned the receive in the radio way up, but i doubt it.... it sounds like an antenna problems. either the coax or the antenna connection.... check out the connections, if you can try replacing the coax, and yeah... i think its a connection problem/ground problem, or ... what do you drive are their a lot of electronics in the vehicle?

Noise clippers arnt too effective, you will still need to turn the squelch way down.... have you checked the SWRs?