Tue May 23, 2006 1:25 am
Generally, you want a "straight across the board" warning system. it will proved, good, even coverage and a familiar sound all throughout. ITs a big no no to have an electronic and mechanical siren mix. Electronic sirens have more signals and if they assign an exotic "eletronic tone"for a specific purpose, obviously a mechanical device wont be able to replicate it. The system should be 100% mechanical. Electronic sirens are often mistaken for vehicular sirens, i have many friends who do that. Mechanical sirens, anybody can tell that its an air raid siren, unless its a single tone high pitch siren, such as the 2001 at a distance. but thats only if you want it to be as effective as possible.
Bringing the joy of siren collecting to the chicago area and more!