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Add a "constant readout" frequency counter externally. Add a "constant readout" frequency counter externally such as the Land Matic LM-260. [[File:LM260freqcnt.jpg]] It is also known that people have installed an internal frequency counter in place of where the front speaker resides. An external speaker can be used. Here is a picture of a good clean mod where someone added a frequency counter to the front. [[File:Cobra142GTLwFreqCntMod.jpg]] ==other facts== These CB Radios all use the same Uniden Main Board* Cobra 142 GTL, * Radioshack Realistic Navaho TRC-490* Teaberry Stalker XX* Uniden Washington (''Not the President Washington''.)