Modulator: Difference between revisions
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{{Infobox siren | {{Infobox siren | ||
|image = [[File:Modulator.jpeg|200px]] | |image = [[File:Modulator.jpeg|200px]] | ||
[[File:IMG 0119.JPG|thumb|Black and Yellow Modulator 4016 at West Virginia State University, Cross Lanes, WV]] | |||
[[File:IMG 0121.JPG|thumb|Control boxes for the "Bumble Mod."]] | |||
|company = Federal Signal Corporation | |company = Federal Signal Corporation | ||
|produced = 1995-2013 | |produced = 1995-2013 | ||
Revision as of 13:15, 2 August 2017
| Modulator | |
[[File:
| |
| Company | Federal Signal Corporation |
|---|---|
| Produced | 1995-2013 |
| Type | Electronic |
| Sound output | 106-125 |
| Succeeded by | Modulator II |
The Modulator was an electronic siren produced by Federal Signal Corporation. It is modular, containing a variable number of cells. Each active cell contains up to four 100W compression drivers and directs sound downward to the top of the cell below it, where it is redirected outward. The bottom-most cell is a dummy to direct sound from the lowest active cell.
Models
The model number refers to the number of active cells, minus the bottom dummy cell, and drivers, of which a cell can have up to four. The first digit refers to the number of active cells in the siren and the last two refer to the number of drivers. For instance, the MOD2008 has two active cells with four drivers each, making eight drivers, plus a dummy cell on the bottom.
| Model | Image | Output | Drivers | Notes |
|---|---|---|---|---|
| MOD1004 | 106 dBc | 4 | ||
| MOD2008 | 112 dBc | 8 | ||
| MOD3012 | 115 dBc | 12 | ||
| MOD4016 | 118 dBc | 16 | ||
| MOD5020 | 120 dBc | 20 | ||
| MOD6024 | 121 dBc | 24 | ||
| MOD6032 | 123 dBc | 32 | ||
| MOD6048 | 125 dBc | 48 |