HELLO HAVE A TEN TEC OMNI C 546 WHICH I BOUGHT USED ABT 12 YEARS AGO . FOR THE FIRST TEN TO TWENTY MUNUTES WHEN TURNED ON COLD IT DRIFTS SLOWLY ABOUT THREE KCS I LOVE THE QSK BUT THE DRIFT BOTHERS ME .IS IT POSSIBLE TO FIX? AS IT HAS DONE IT EVERSINCE I BOUBHT IT ? THANKS MEL WA9YQA