Almost like deja vu, the issue of radio manners has reared its ugly head once again. Changes to the County Radio Procedures Manual are forthcoming to incorporate new changes, but County EMS Radio users are encouraged to review the Radio Etiquette memo issued by County EMS Coordinator Mike McEvoy in February 2002. An added point for consideration is an increasing trend of First Responders calling enroute to their station(s) which is unnecessary and recently has taken valuable air time from units responding to scenes. Unless you are responding to the scene of a call, please refrain from tying up the air to call enroute.