K4ZAD's
Radio Information Site
Occasionally I have some radio related information thatmight be of interest to others. This site, a sub-domain of Inland Marine Radio History Archive, is the home for such information.
CONTENTS
Transistor Pinouts:
A page of pinout and base diagram
information
DIYUHF
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 theFCC and Radio
Locater records for AM and FM station
information. Low frequency beacon information searches can
also be done from this page.
Nighttime
AM DX: PDF - A 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
Radio & Test Equip,
Manuals: Twenty
+
sources for manuals, instruction books and schematics
Shortwave
Freq. 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.
Semiconductor Oddities and Negative Resistance: A collection of links and PDF documents on these topics.
Intl.
Radio Call Sign Prefixes: A PDF listing of prefixes
for all the countries on a single sheet.
Windows Sound Card Based
Test
Gear: 30+ links to Windows PC based test
applications
Heathkit Gird Dip Meter GD 1B - Low frequency coil Kit #341A - Instructions
- Correlation
Chart
Digital
TV Channels: DOWNLOAD a one page Excel Spreadsheet
showing post-Repack channel info. for the Raleigh, NC
area.
The Birth of Ham VHF-FM: The 1960s effort to
encourage logical selection of frequencies for new VHF-FM nets.
With links to historic documents.
Main Site - The Inland Marine Radio History Archive
My Other Site - GE Mobile Radio History Archive
Links checked and page code updated - 04/16/2023