Recording hardware

Beam Reach equipment

Equipment owned by Beam Reach or shared with The Whale Museum:

• Sound Devices 702
• Marantz
• National Instruments A/D boards
• Motu Traveler
  • Specs for the Ultralite mk3, 828mk3, Traveler mk3, and 896mk3 interfaces:
    • dynamic range - 112db (A-weighted RMS)
    • headroom - 16db (20dbu FS)
    • available pre amp mic gain - 60db
    • sampling rate - 44.1khz-192khz on analog, 44.1khz-96khz on ADAT Lightpipe, S/PDIF, and AES/EBU
    • frequency response at 96khz sampling rate 20hz - 48khz ± .05db
    • frequency response at 192khz sampling rate 20hz - 96khz ± .05db with a 2db linear roll off from 48khz to 96khz
    • THD+N .001% or better
    • outputs under 100 ohms
    • TRS Inputs 10k ohms
    • TRS combo inputs 220k ohms
    • XLR inputs 2k ohms

Helpful links

• Gianni Pavan's tech note on aliasing in common recording devices

Wish lists

Ultrasonic listening, detecting, and recording systems

Bats emit 10kHz-160kHz overlapping with killer whales, harbor porpoises, and Dalls porpoises

• Wikipedia article on bat detectors
• bats.org.uk on bat detectors (good reviews on buying detector and recorders)
• Build your own ultrasound receiver