The Cobra 148 GTL is at an distinct disadvantage for this very reason. For a first buy radio - or if it was a gift for a first time radio user, they will probably be happy with it on AM. I did use a D104 on it on AM and SSB, and it sounded OK with the crew who helped me evaluate the radio (thanks guys!). The Cobra 148 GTL CB radio has twelve watts power SSB RF output, which increases the SSB range. The microphone connector is of a four-pin design and the whole connection is designed to maximize space. Along with all that, this model has a dual conversion AM receiver with maximum frequency response and controls designed to be easy to use even.
C 148 GTL ST : UPC#: 0 28377 90246 8 : Individual Carton Dimension: (in) 8-3/4 x 15-1/2 x 2-7/8 . America's Most Respected Name in CB Communications. For Operational or Technical Assistance with a Cobra Product call Bells CB or Direct to Cobra at 1-773-889-3087. Cobra's automated help desk is available 24 hours a day 7 days a week.. Cobra 148GTL DX (Early PC879 MB8719) and (Late PB010 MC145106) Documentation Project CBTricks.com