The cooling fan on the Rattlesnake 550 GMRS repeater had begun to malfunction, so we disconnected it and ordered a replacement which should arrive on or about April 23. We reduced the transmitter power from 45 watts to 25 watts so that it can operate without a cooling fan. Just to be on the safe side, we ask that you try to limit conversations to five minutes to further reduce the chance of the transmitter overheating. We will post a new announcement as soon as this problem has been resolved.