Moshe Making guard traces is difficult when your board is densely routed. The reason for providing ground trace is mainly to reduce Crosstalk, you can achieve the same by maintaining clearance between the aggressor=20 & victim trace. Hope this helps. Trilok Budathoki GE-IBC tel: +91-40-2788-1731 Email: trilok.budathoki@xxxxxx ----- Original Message -----=20 From: "Moshe Frid" <moshef@xxxxxxxxxxx> To: <si-list@xxxxxxxxxxxxx> Sent: Sunday, July 18, 2004 11:26 AM Subject: [SI-LIST] guard traces (huge) > Hi All > can someone tell me something about rules of guard trace > what space need to be kept > do they have to be connected to the ground plane and how do they = affect > the impedance of the trace that is guarded ? > =20 > =20 > Moshe Frid > Adcom pcb design >=20 > Mobile :066-573232 >=20 > Tel. 972-9-7417411 (108) >=20 > Email:moshef@xxxxxxxxxxx >=20 > =20 >=20 > ------------------------------------------------------------------ > To unsubscribe from si-list: > si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field >=20 > or to administer your membership from a web page, go to: > //www.freelists.org/webpage/si-list >=20 > For help: > si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field >=20 > List FAQ wiki page is located at: > http://si-list.org/wiki/wiki.pl?Si-List_FAQ >=20 > List technical documents are available at: > http://www.si-list.org >=20 > List archives are viewable at: =20 > //www.freelists.org/archives/si-list > or at our remote archives: > http://groups.yahoo.com/group/si-list/messages > Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > =20 >=20 ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: =20 //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu =20 ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu