The Radio Amateurs Handbook (aka The ARRL Handbook for Radio Amateurs) gives an excellent explanation of coils, windings, interwire capacitance etc. Pretty much any edition back to the beginning of ham time has it.
However, for those living in the 21st century HI, in the 2000 edition i.e. find complete explanations under AC Theory and Reactive Components, Real World Component Data and in the Reference section. A little RF design knowledge for your entertainment this AM. 73...Rick -- W5RH On Wed, Jun 29, 2022 at 9:50 AM Gary Sitton via BVARC <[email protected]> wrote: > Yes, that's also another reason for the increased spacing. > Gary K5AMH > > On 6/29/2022 9:00 AM, Joseph Benoit via BVARC wrote: > > In addition to otherwise stated by K5AMH, as the frequency gets much > higher incrementally smaller inductance value is required (wider spacing, > turns-per-inch on a given coil diameter) and smaller incremental change is > needed to fine-tune if it were. > > On Sat, Jun 25, 2022 at 11:14 AM Michael Giannaccio via BVARC < > [email protected]> 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]/ >> > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing > [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]/ > -- Rick Hiller *e-mail: [email protected] <[email protected]>* *Cell: 832-474-3713* *Physical: 9031 Troulon Drive* * Houston, TX 77036*
________________________________________________ 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]/
