The precise mechanism of potassium channel selectivity continues to be sodium ion.
2.
Having said all of above, still computing EMF or DBF is valuable to address channel selectivity or gating.
3.
I would like to get a filter installed in my car radio to drastically improve its adjacent channel selectivity ( FM ).
4.
Hopes that UHF-TV would allow dozens of television stations in every media market were thwarted not only by poor image frequency rejection in superheterodyne receivers with the standard intermediate frequency of 45.75 MHz, but also by very poor adjacent-channel rejection and channel selectivity by early tuner designs and manufactures.
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