New Cobra 29 LX CB Trouble

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got a new CB here unable to get any history you are reading out of it I able to go through the calibration 20 up to calibrate and then when I bumped down to the SWR I try to get a reading on channel 1 or channel 44 that there there no SWR nothing believe I got a good ground everything hooked up anybody seen anything like that before I appreciate some feedback I having trouble finding online thanks