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Query: ARRL
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Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe. The document provides a brief guide on building a compact dipole antenna appropriate for the 40, 80, and 160-meter amateur radio bands. It explains the materials, building processes, and tuning methods required to provide best performance while preserving space. The paper also discusses theoretical elements of dipole antennas, such as impedance matching and feedline selection. -
Home made vertical antenna for 80 40 15 10 meters ARRL PDF file taken from QST June 1978 -
A reduced-size 80-meter antenna designed for small lots, portable use, and a fine companion for QRP -
calculates the dimensions and spacings of the elements needed to build a log periodic antenna, given tao, sigma and the lower and upper cutoff frequencies. -
A comparison of different multi-band dipole techniques -
Cannot find the inductors you need for an antenna, a tuner or amplifier ? Build your own it is easy! -
Suggestions on finding RF ground when you live in an apartment and you want to setup an antenna -
The ARRL website provides a graphical representation of US frequency allocations for amateur radio operators. Users can download a PDF document containing the band plan and access additional information on frequency bands and regulatory aspects. -
A short but efficient dipole for 40 meters band -
Which balun to use? The hybrid balun promises advantages over both voltage and current baluns by ZS1AN -
Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format -
Usage and benefits of transmatch. A pdf document from a QST article made available for novices and beginners by ARRL -
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An inexpensive external GPS antenna, for 1.5 GHz band for GPS receiver, If you operate APRS or just need an external antenna for your GPS receiver, here's one that is easy to build yet offers surprisingly good performance in a compact size. Best of all, it uses commonly available components and materials. -
What is a dipole antenna and why are they so popular ? Arrl PDF file -
Download this color US ham radio band-plan in PDF format edited by ARRL -
A few hours of fun with PVC and wire and you have got yourself a respectable road radiator. The antenna consists of little more than some PVC pipe topped by a RadioShack replacement whip antenna and a couple of coils made from a small roll of #14 house wire. -
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About grid locators and grid squares, includes links to locator and grid square calculators -
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Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable. -
ARRL WAS Map, Map of USA call districts by ARRL and edited by AA70A -
PV4, W2PV 4 element Yagi antenna as described in ARRL antenna handbook 15th edition for 20 meters band by T93M -
A modern version of the classic regenrative receiver designed and built by Charles Kitchin ARRL Article -
Table of allocation of international Call Sign series -
A Simple Nondirectional Antenna for Ten Meters QST February 1950, Easy to build J-Pole antenna for restricted space. -
This antenna is based on a design for a portable 2 element 6m Quad by VE7CA, which is featured in the 19th Edition of the ARRL Antenna Handbook -
The document is a PDF detailing the construction of the DBJ-1 VHF-UHF Dual Band J-Pole antenna for amateur radio use. It provides instructions on how to build a high-performance dual band base antenna for VHF and UHF bands using a single feed line for less than $10. -
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A 20 meter quarter wave vertical antenna by jerry sevick W2FMI QST Article -
"ARES trains and organizes Hams to provide emergency communications to ""Served Agencies"" such as FEMA, National Weather Service, Red Cross, Salvation Army, Hospitals, and others. This site describes ARES goals and methods and structure." -
Building guide for a two element quad antenna planned for 28 and 21 Megahertz -
All ARRL contests for current year are listed along to generic ARRL contest calendar is also provided that gives the weekends for all ARRL events. The Contest Corral files include non-ARRL events. -
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Transmitter power limits and frequencies allocation by band -
Simple gain antennas for the beginner, a 2 element HF yagi antenna -
The K4VX linear-loaded dipole for 7 MHz, simple and practical way to make a short but efficient 40-meter dipole. -
VE7CA reprint an interesting article taken from arrl antenna compendium. Two elegant practical and portable 6-meter gain antennas, a two-element quad and a tree-element Yagi antenna for 50 Mhz-6 meter band -
This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna. -
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Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ? -
RFI/EMI RadioFrequency interference/electromagnetic interference by ARRL Technical Information Service page -
Good tools are priceless when you need them. Here's a piece of test equipment you've always wanted for your workbench -
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An ARRL guide to where on the HF bands various modes and activities are generally found. -
The American Radio Relay League (ARRL) web site -
Article on PSK modes. PSK for Beginners Has RTTY's Replacement Arrived? -
Download a 6 meter moxon antenna, drawings, photos, plots by Allen Baker KG4JJH, (10 Mb!) -
