En generel regel (med nogle undtagelser) er at L-serieelementets enlige ende går til siden med den laveste impedans.<ref>Silver, H.L. (Ed.) (2011). ''The ARRL Handbook for Radio Communications'', 88th&nbsp;ed. Newington, CT: American Radio Relay League.</ref><ref>[https://docplayer.net/19018041-Impedance-matching-and-matching-networks-valentin-todorow-december-2009.html engr.sjsu.edu: Impedance Matching and Matching Networks. Valentin Todorow, December, 2009]</ref><ref>[https://web.archive.org/web/20170712231649/http://rfic.eecs.berkeley.edu/142/pdf/lect7_match.pdf rfic.eecs.berkeley.edu: U.C. Berkeley, Prof. Ali M. Niknejad: Matching Networks] {{Webarchive|url=https://web.archive.org/web/20170418081359/http://rfic.eecs.berkeley.edu/142/pdf/lect7_match.pdf |date=18. april 2017 }} Citat: "...Consider the L-Matching networks, named due to the topology of the network. We shall see that one direction of the L-match boosts the load impedance (in series with load) whereas the other lowers the load impedance (in shunt with the load)..."</ref><ref>Tast eksempel input (Rsource) og output (Rload) ind og en frekvens på 1e7 (10MHz) - de kredsløb, som ikke understøtter impedans omsætning, skriver [[NaN]] (not a number); dvs ingen løsning: [http://home.sandiego.edu/~ekim/e194rfs01/jwmatcher/matcher2.html John Wetherell: Impedance Matching Network Designer. (Now with 16 networks!)], [https://web.archive.org/web/20210205150729/http://home.sandiego.edu/~ekim/e194rfs01/jwmatcher/matcher2.html backup]</ref>
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