K4ZAD's Radio Information Site
Occasionally I have some radio related information that might be of interest to others.
This Radio sub-domain of the
Inland Marine Radio History Archive
site is the home for such content.
A page of pinout and base diagram information
DIY UHF TV Antenna:
Dimensions & construction details for an indoor Gray-Hoverman
UHF TV antenna built on two 24 by 36 inch foam boards.
Easy Frequency Search:
Provides a unified way to search the FCC and Radio Locater
AM and FM station information. Low frequency beacon information
searches can also be done from this page.
Nighttime AM DX Guide - A PDF download:
one-page, three-column, listing of nighttime
DX targets for those living in North Carolina and nearby states.
Quilting Hoop Loop:
A page with some information and pictures of my version of N7FKI's
Quilting Hoop Loop
Sources for Radio & Test Equipment Manuals:
Twenty + links for manuals, instruction books
Shortwave Frequency Allocations:
A PDF of the frequency bands allocated to the different radio
services including a column showing the width of each band.
DIY Coil Calculators:
A page with links to on-line coil/Inductance calculators - Find Inductance, dimensions, AL, wire length, permeability, etc.
International Radio Call Sign Prefixes:
A PDF listing of prefixes for all the countries on 1 page.
The Windows PC as an Electronics Test Bench:
30+ links to Windows PC based test applications
Heathkit Gird Dip Meter GD 1B - Low frequency coil Kit #341A -
Digital TV Channel Changes
for the Raleigh, NC area. A o
ne page Excel Spreadsheet showing
the changes scheduled to be implemented by 2020
Ham VHF FM Channelization History:
The 1960s effort to encourage logical selection of frequencies for new
. With links to historic documents.
Main Site - The Marine Radio History Archive
New item added - 08/24/2019