These ski areas have made many changes in their radio systems this winter. I'm just beginning to sort it all out. The biggest change is a plan (which may have been implemented already) to install a trunked system for June Mountain. They have licensed it for installation down in the town of June Lake, presumably so it will not interfere with the system on Mammoth Mountain. The June Lake system uses five frequencies that are also used in the Mammoth system.
The June Mountain ski area is located on the north side of a ridge that blocks the view of Mammoth Mountain from the June Lake area. The June Mountain ski area looks down on the June Lake area and so a trunked site in town should provide coverage for the ski area. What I can't figure out is how handheld and mobile radios (in grooming equipment) distinguish which system to affiliate with when on top of the ridge where the trunking sites on Mammoth Mountain and June Lake are simultaneously line of sight. I also presume that the radios from each ski area are interchangeable, which is why ridge top operation causes me to scratch my head. It can't be a smart zone type system as there is duplicate frequency use at the two adjacent sites.
Does anybody have any thoughts on how this would work?
The Mammoth Mountain trunked system employs the five frequencies discussed above plus a few others. The use of these other frequencies has been changing throughout the winter. I will attempt to sort this out as well and submit my findings to the database. In the meantime, anyone who comes to ski at Mammoth Mountain this winter that does not have a "control channel only" mode on their scanner will have some difficulties monitoring the trunked system.
The June Mountain ski area is located on the north side of a ridge that blocks the view of Mammoth Mountain from the June Lake area. The June Mountain ski area looks down on the June Lake area and so a trunked site in town should provide coverage for the ski area. What I can't figure out is how handheld and mobile radios (in grooming equipment) distinguish which system to affiliate with when on top of the ridge where the trunking sites on Mammoth Mountain and June Lake are simultaneously line of sight. I also presume that the radios from each ski area are interchangeable, which is why ridge top operation causes me to scratch my head. It can't be a smart zone type system as there is duplicate frequency use at the two adjacent sites.
Does anybody have any thoughts on how this would work?
The Mammoth Mountain trunked system employs the five frequencies discussed above plus a few others. The use of these other frequencies has been changing throughout the winter. I will attempt to sort this out as well and submit my findings to the database. In the meantime, anyone who comes to ski at Mammoth Mountain this winter that does not have a "control channel only" mode on their scanner will have some difficulties monitoring the trunked system.