- Dec 31, 2005
What is all the buzzing on 424.950MHz. This used to be Cranbrook security. I thought Cranbrook was going to the Open Sky system, but it appears 424.950MHz is still in use. However, there is no voice, but rather data sounds. I don't think the data sound is digital voice either, but rather some kind of control data. It isn't a constant signal. Did they go to something like TRBO and this is a "beacon signal" being sent out by the controller to determine what radios are in range, etc?