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Channel 1,2,3 = Up,North,East acceleration
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Channel 4,5,6 = Up,North,East velocity
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Digitizing constant = 3276.8 count/V
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| Sample rate = | 200 sample/second/channel |
| (100 s/s/c for some tapes at NAR) |
| (400 s/s/c for some tapes at BNE,BNW,RNE,RSE,RWC) |
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Trigger channel = 4
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Short-term average = 0.2 second
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Long-term average = 4, 6, or 10 second
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Trigger ratio = 4:1 or 8:1
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Pre-event memory ~ 2.0 second
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Duration > 10 second
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Anti-alias corner frequency = 50 Hz
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Anti-alias rolloff = 42 dB/octave
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| Sensor | Sensitivity | Natural Freq. | Damping |
| FBA-13 | 0.0051 V/cm/s/s | 50 Hz | 0.7 |
| L22 | 0.5 V/cm/s | 2 Hz | 0.7 |
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