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| BNC TEE circuit considerations - RF Cafe Forums | ||||||
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Below are all of the forum threads, including all the responses to the original posts. Xconnect Post subject: BNC TEE circuit considerations Posted: Sat Feb 07, 2009 10:25 am Lieutenant Joined: Thu Jan 08, 2009 10:27 pm Posts: 2 Looking for circuit information on the effects a BNC has when it splits a line into two. (source splits to 'line A' and to 'line B'. Line B is a 1M ohm scope input. Line A goes to another scope input which is 1M as well. Is it true in this scenario the total 'load' seen by the source is now 500K? Top IR Post subject: Re: BNC TEE circuit considerationsPosted: Sat Feb 07, 2009 4:06 pm Site Admin Joined: Mon Jun 27, 2005 2:02 pm Posts: 373 Location: Germany Hello Xconnect, There is some information missing in your description: There are also other impedances involved like the impedance of the source and the characteristic impedance of the BNC connector (and also cables?), which have to be taken into consideration. _________________ Best regards, - IR Top yendori Post subject: Re: BNC TEE circuit considerationsPosted: Sun Feb 08, 2009 10:35 pm General Joined: Thu Sep 25, 2003 1:19 am Posts: 50 Location: texarcana At least at DC to Low Frequency it is true you will see 500K ohms at the input of the TEE. Top nubbage Post subject: Re: BNC TEE circuit considerationsPosted: Tue Feb 10, 2009 4:15 am General Joined: Fri Feb 17, 2006 12:07 pm Posts: 218 Location: London UK Also, buried in the small print of the specs for the so-called 1 megohm load device, might be reference to the shunt capacitance. At high frequencies almost certainly this factor will dominate the impedance calculation. _________________ At bottom, life is all about Sucking in and blowing out. Posted 11/12/2012 | ||||||
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