Dunno if this is relevant or not, but we manufacture stand-alone terminator/attenuator modules for ECL/PECL/LVPECL signals: http://www.pulseresearchlab.com/terminators These can be used to externally terminate ECL/PECL/LVPECL signals and/or to connect them to ground-referenced 50-Ohm 'scopes or other equipment. Bandwith to 8 GHz, and ready to use, out of the box. ------------------------------------------------------------------ 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 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