Amplifier

NA GTEN 200

Number of EEG channels

128

Conversion

24-bit A/D

Sampling rate

Net Station

1,000 Hz

Net Station with
Amp Server Pro SDK
For scientific research purposes

8,000 Hz

Sensitivity

Digitization precision

0.039 µV/bit

Display sensitivity

selectable

Input impedance

≥ 1.0 GΩ

Common- mode rejection ratio (CMRR)

≥ 90 dB @ 50/60 Hz

Noise level @ 1 Ksps

< 1.0 µV RMS (6 µV peak- ‐to- ‐peak)

DC Offset

± 333 mV

Injection protocol interblock delay

5–10 ms

Digital interface

TCP/IP Ethernet protocol

Power requirement

15 VDC @ 3.0 A

Electrode sensor array
Geodesic Sensor Net (GSN)

HydroCel GSN

Computer
Apple: iMac or MacBook Pro

iMac
OSX 10.14.4
Intel Core i5- ‐7500 (3.4 GHz)
16 GB DDR4 (2400)

MacBook Pro
OSX 10.14.4
Intel Core i7- ‐8750H (2.2 GHz)
16 GB DDR4 (2400)

Software and naming rule
name and version number

Net Station: version 5.4.3- R or later

Isolation transformer
Toroid of Maryland,
Model ISB- ‐060- ‐M

Rated inputs:
50- ‐60 Hz
100 V @ 6.3 A to 120 VAC @ 5.3 A
220 VAC @ 2.9 A to 240 VAC @ 2.6 A
Rated outputs:
115 to 120 VAC @ 5.0 A (600 VA max)
230 to 240 VAC @ 2.5 A (600VA max)

Amplifier external power supply

Input: 100- ‐240 VAC, 50/60 Hz, 1.0 A
Output: 15 VDC, 3.0 A

Ethernet switch

Black Box, Model LGB2008A- ‐R2, 8- ‐port Gigabit Web Smart Switch