I have never been able to find or figure out the frequency that the Allegheny County Housing Authority Police opearted from. I do not think it is any of the listed frequencies that I have seen for Allegheny County Police or Sheriffs departments??? I would love to be able to hear their transmissions to figure out what exactly do they do?? So if anybody out their knows the frequecies that the Allegheny county housing authority police depatment uses that would be great!! Thanks for the information it will be grealty appreciated!!!!