Application And Comfort - Geodesic Sensor Net Technical Manual

10: Net FAQs
What should I do with unused channels?
Noise is normal for unconnected channels. Do not worry about it, or short the
channels to common. Do not short to reference. Shorting plugs are provided with
infant Nets to short eye channels when they are not being used with outrider
electrodes (see "Infant Nets" on page 44).
Note: Because of the lack of common-mode rejection, shorted channels may display 60-Hz
noise.
Can I return an HCGSN without sponge inserts
to EGI to have sponges put in?
Yes. Just contact support@egi.com to arrange for this service. Please disinfect the Net
(see page 81) before returning it to EGI.
And vice versa: Can I remove sponges from my
HCGSN for 12-hour recording?
No. Removing all the sponges from an HCGSN may cause damage to the electrodes.
This service is not offered by EGI and should not be performed by the customer.

Application and Comfort

Are the Geodesic Sensor Nets comfortable?
Yes. In fact, numerous subjects have commented on the snug and comfortable fit of
both the GSN 200 and the HCGSN. The geodesic tesselation covers the head evenly
and firmly, thus uniformly distributing the tension of the structure and preventing
painful pressure points from developing.
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Geodesic Sensor Net Technical Manual
S-MAN-200-GSNR-001 • January 31, 2007