Hi, I'm fishing for specific product advice on this one, hopefully that is ok.
At the last minute I had this requirement dropped into my municipal project, which involves new construction adjacent to a ferry unload. There is a midblock crosswalk and the ferry corporation decided that it wants to see a pedestrian signal at that location, and have ability to lock the signal in the "don't walk" position from their control booth. When the release their switch the signal goes back to showing the walking man. (roadway only used for ferry traffic).
Running a wire from the intersection location to the control booth is quite problematic so I've been looking at radio links. I've found at least one product that will work, 900MHz but it has eight I/O and all I need is one. Price seems excessive. Just tracked down another, at 26.996Mhz which seems more appropriate but I'm hesitant to specify it based on a web page alone.
thanks
At the last minute I had this requirement dropped into my municipal project, which involves new construction adjacent to a ferry unload. There is a midblock crosswalk and the ferry corporation decided that it wants to see a pedestrian signal at that location, and have ability to lock the signal in the "don't walk" position from their control booth. When the release their switch the signal goes back to showing the walking man. (roadway only used for ferry traffic).
Running a wire from the intersection location to the control booth is quite problematic so I've been looking at radio links. I've found at least one product that will work, 900MHz but it has eight I/O and all I need is one. Price seems excessive. Just tracked down another, at 26.996Mhz which seems more appropriate but I'm hesitant to specify it based on a web page alone.
thanks