Name: Beowulf II Board

Text: Beowulf I1 Board
Audio Recorder
Data Sheet

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Bmwulf II Board

Image not to scale

Beowulf U Board
The Beowulf I1 Board is an audio recordingdevice,
especially engineered and designed for easy integration
into numerous custom made concealments.
The very small and lightweight recorder intercepts all
ambient audio making it extremely suitable for close
proximity operations.
The hassle free design is delivered with external batteries,
microphones and kill switch, and can be configured with
matching battery packs and external switch 1push button
of your choice.
The recorder is operated easily using only a single button
on the PCB or from an external wired slide switch 1
push button. The slide switch input can also be used as
normally open trigger input. Additional recordingoptions
include multiple scheduled recordings or voice activation
(VOX). Positive feedback from 2 LEDs, provide assurance
on the device's operational state.

The audio is stored, as [email protected] audio files, on the
internal 16 GB flash drive usingthe FAT32 file system. Evidence
verification is included with the bundled Wavechecker I1 Utility
which detects whether or not audio files recorded with the
Beowulf family of products have been modified after the audio
was recorded.

Features

5 different sample rates

- 6 kHz, 8 kHz, 12 kHz, 16 kHz and 24 kHz
4 different audio format options
-Stereo IMono 16 bit and Stereo 1Mono A-law
Various input gain settings
-Automatic Gain Control (AGC)
- 0 dB, +l0 dB, +20 dB, +30 dB and +40 dB
3 options to trigger recordings
- Manual trigger usingthe Beowulf I1 External Slide Switch
(normally open trigger) or the Beowulf I1 Button
-Scheduled recordings using dates and times
-Voice Activation (VOX)
3 different battery options
- Selectable according to operational needs

Recording, Recharging, and Power Matrices

Audio Sample Rate

Compression

130 mAh

2 10 mAh

420 mAh

Max. Rec Time*

6 kHz

Mono
Mono. A-law

5 h 50
6 h 10

9 h 30
10h

19h
20 h

368 h
736 h

8 kHz

Mono
Mono. A-law

5h35
6h

9h5
9h5

18 h 10
19h40

276 h
552 h

12 kHz

Mono
Mono, A-law

5h10
5 h 50

8h20
9h30

16h40
19h

184h
368 h

16 kHz

Mono
Mono, A-law

4h45
5 h 25

7h45
8h45

15 h30
17h30

138h
276 h

24 kHz

Mono
Mono, A-law

4h25
5h

7h10
8h06

14 h20
16h10

92 h
184h

6 kHz

Stereo
Stereo, A-law

5h10
5 h 50

8h2O
9h30

16h40
19h

184h
368 h

8 kHz

Stereo
Stereo. A-law

5h
5 h 40

8h5
9h05

16 h 10
18 h 10

138h
276 h

12 kHz

Stereo
Stereo, A-law

4h35
5 h 25

7h30
8h45

15h
17h30

92 h
184h

16 kHz

Stereo
Stereo, A-law

4h10
4 h 25

6h45
7h45

13h30
15 h30

69 h
138h

24 kHz

Stereo
Stereo, A-law

3 h 35
4 h 20

5 h 50
7h

11 h40
14h

46 h
92 h

Maximum record time requires a power source that meets or exceeds the record time.

Recharge Time

45 m

l h15

2 h 30

NIA

Current ccarlrumpt-m

mAh @ 3.3 V DC

rnAh @ 4.2 V DC

Audio Sample Rate

Compression

6 kHz

Mono IMono A-law

22 I 2 1

22 l 2 1

Mono IMono A-law

23 / 21

23 / 21

I 12 kHz

Mono / Mono A-law

25/22

24/21

I
I

1 16 kHz

Mono / Mono A-law

27/24

26/23

I

24 kHz

Mono / Mono A-law

29 126

29 / 26

6 kHz

Stereo /Stereo A-law

25 / 22

24 121

1 8 kHz

Stereo / Stereo A-law

25 / 23

25 123

I

I 12kHz

Stereo / Stereo A-law

28 124

28 124

I

16 kHz

Stereo / Stereo A-law

31 l 27

31 127

24 kHz

Stereo IStereo A-law

36 1 30

36/30

l

I
l

1

Beowulf I1 Board
Audio [email protected]
Data Sheet

Battery Options

Bmwulf I1 210 mAh Battery

;

Rechargeable L W 0
3,N 1 420mAh
-

kwhf II 420 rnAh Battery

Slide Switch

I

Beowulf I1 Board
Audio Recorder
Technical Information

Beowuff II Board

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For further ~nforrnat~on
please contact.

Cobham Tactical Communications and
Surveillance
Skindbjergvej 44, DK-8500 Grenaa, Denmark
T +45 87 91 81 00
F:
+45 87 91 81 81
[email protected]

Spectron~cDenmark AiS trad~ngas Cobham Tact~calCommun~cat~ons
and Survetllance

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