Thanks Gary! I’ll start doing some research into this. This may be the solution for a problem I’m having with an antenna design.
73, Mike Giannaccio W5REZ > On Jun 25, 2022, at 11:46 AM, Gary Sitton via BVARC <[email protected]> wrote: > > > Yes, the wider spacing at one end is to reduce the parasitic > inter winding capacitance at higher frequencies (> 10 MHz). > This winding to winding capacitance effects the self resonance > of the inductor making it less ideal at these higher frequencies. > > Gary K5AMH > > > On 6/25/2022 11:14 AM, Michael Giannaccio via BVARC wrote: >> This is probably a basic question but I’ve come up empty in my search and >> can’t seem to find the answer in the Antenna Book. >> >> Can someone explain to me or link me to some reading as to why some roller >> inductors and screwdriver antennas like the ATAS have less turns per inch on >> the ends of the coil and more towards the center? I do have the latest >> edition of the antenna book so if it’s in there I can look it up. >> >> >> >> >> >> >> >> Thanks! >> >> 73, >> >> Mike Giannaccio >> W5REZ >> >> >> ________________________________________________ >> Brazos Valley Amateur Radio Club >> >> BVARC mailing list >> [email protected] >> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org >> Publicly available archives are available here: >> https://www.mail-archive.com/[email protected]/ > > -- > Gary Sitton, K5AMH > [email protected] > SDR/DSP Consultant, > "Have FFTs, Will Travel." > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > [email protected] > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/[email protected]/
________________________________________________ Brazos Valley Amateur Radio Club BVARC mailing list [email protected] http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org Publicly available archives are available here: https://www.mail-archive.com/[email protected]/
