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Low noise, receive only coax loop antennas for 160 - 10 meters HF bands

The 144-430 portable j-pole antenna is designed for amateur radio operators seeking a lightweight and efficient solution for VHF and UHF communications. This antenna is particularly useful for portable operations, allowing hams to set up quickly in various locations while maintaining excellent performance. Constructed from readily available materials, it can be easily homebrewed, making it an ideal project for both beginners and experienced operators alike. The j-pole design offers a simple yet effective configuration that provides a good match across the 144 MHz and 430 MHz bands. Its vertical polarization and omnidirectional radiation pattern make it suitable for local communications and simplex operations. This antenna can be deployed in various environments, whether in the field or at home, and is well-suited for mobile applications. With proper construction techniques, operators can achieve optimal performance, enhancing their ability to make contacts during contests or casual QSOs.

Cobra Grant Superstar Emperor Galaxy President Midland Uniden and more radio mods

QRZ.com provides a comprehensive online **callbook** service, enabling amateur radio operators to look up detailed information for over 2 million licensed stations worldwide. Each entry typically includes the licensee's name, address, QSL route, and often a personal biography with station details, antenna configurations, and operating interests. The platform integrates various features such as a **Logbook of the World (LoTW)** interface, allowing users to confirm QSOs directly, and a robust search engine for rapid call sign resolution. The resource also features dynamic content, including real-time solar-terrestrial data from N0NBH, an active online swapmeet for buying and selling amateur radio gear, and a news section with articles covering current events, contest results, and special event station announcements. Recent news items highlight topics like the 'Five Two Simplex Challenge' and the '9th HamSCI Workshop,' indicating a focus on active operating and scientific engagement within the amateur community. Furthermore, QRZ.com supports various amateur radio awards, such as the new 'USA250 Award,' encouraging participation in specific operating programs.

About G5RV antennas, with radiation pattern produced with eznec

The webpage provides a live scanner radio feed for Dallas Ambulance, Fire & Police. Users can listen to real-time updates on public safety communications, including emergency services and law enforcement.

Large aurtralian radio frequency charts collection

Large colletion of antique radios with details and photos

Article on a small magnetic loop antenna for forty meters band by Ben Smith

A better way to install PL-259 connectors on RG-8X type coax by Dan Richardson, K6MHE

A dual loop antenna, ZZ Wave Net HF Wire Antenna Project by VE6VIS. The antenna is basically a full wave 80 meter loop on top and a 40 meter loop on the bottom all supported from a 64 foot center support

Experience and practical use of magnetic loop antennas, by N0HC

Over 16.7 million callsigns are indexed within the HamCall World-Wide Callsign Database, a long-standing resource for amateur radio operators. This online tool facilitates rapid lookups of callsign data, including operator details and QSL photos, which are crucial for confirming contacts and pursuing operating awards. The database integrates FCC updates as they are released, ensuring timely access to current licensing information. The platform also features a live **DX cluster** displaying recent spots across various bands, from 160m to 3cm, with specific spot counts for active bands like 15m (50 spots) and 10m (46 spots). Users can view **band activity** summaries, providing an immediate overview of propagation conditions and active frequencies. Additionally, the service provides access to a hamfest calendar and amateur radio news updates, making it a multi-faceted resource for daily operating and event planning. Since 1989, the HamCall DVD has supported this server, alongside HamCall.net Gold Memberships, demonstrating a sustained commitment to providing comprehensive callsign data.

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.

Installing your dipole end insulators, a beginner guide to proper setup wires to insultaors.

Practical contruction and designing notes of a delta loop for the 40 meters band

Easy download your free high quality desktop image about amateur radio station and antenna

Antenna suitable for all the HF amateur bands, including the so called WARC bands by vk6ysf

Complete plans and drawings to build a small 3 elements Yagi antenna for six meter band by Ken Willis

Colorfull radio frequency spectrum allocations in the US, in PDF Format

Windows contest logging software with multiple functions like antenna rotor control, dx cluster, cat control, voice and cw keying, supports many data modes, qrz lookup, pirint qsl and labels, mapping and more. Donationware software.

a guide to help install arrays

Ham radio pictures, qsl and sounds archive by K8CX

High performance RTTY reception and transmission software, need a Sound Blaster compatible sound card.

This antenna modification is for the IEEE 802.11b networking protocol that operates at 2.4 GHz. It can be scaled easily to the 5 GHz frequency used by IEEE 802.11a by simply scaling the dimensions on the feed can and the excitation antenna to 2.4/5 = 48% of the dimensions shown above.

Simplified U.S. frequency allocations table by K8ZT

BiQuad 802.11b Antenna 11dBi, wide band by Trevor Marshall

An F150 and Yaesu FT-857, ATAS-120 No-drill Install

ARRL WAS Map, Map of USA call districts by ARRL and edited by AA70A

Antenna rotator: how it work,how to repair and how to modify it

Table of allocation of international Call Sign series

A helically wound two element 40 meter yagi beam antenna from a 1974 QST article

A complete site for anyone wanting to use kites or balloons for supporting Top Band antenna systems.

AudioCapture recorder software for Windows, Runs in the background, and starts recording when sound is detected from the microphone input.

There are many ways to support an amateur radio antenna. Installatio of a utility pole will provide an antenna height of approximately 13 meters (40 feet) and will require no guy wires.

802.11b WLAN Waveguide Antennas Unidirectional & Omnidirectional. High gain, Simple construction by Trevor Marshall

The radio spectrum in usa, PDF File representing the united stares frequency allocations in graphical mode, dated 2003

A homemade 16 foot falling derrick to tilt up a 50 foot high, 18 inch wide Glen Martin aluminum tower by N6RK

Also known as G5RV junior the half size G5RV feature reduced dimension and multiband coverage

If you have a small lot and want on 160 meters this is our version of the antenna by K5CBL Troy

A free online calculator for making all of the calculations required to design and build small transmitting loop antennas, also known as magnetic loops by 66pacific.com

Amateur Radio Call Log is a basic ham radio logging app for Android 1.5 and above. It stores Date, Time, Station, Freq, Mode, RST, and additional comments. Also has the ability to easily look-up callsign information from the FCC database.

WA2UGT X-beam antenna for 17 meters band

design note by Brian Williams, GW0GHF

Transmitter power limits and frequencies allocation by band

The homemade CW paddle key design, inspired by a QRP homepage, utilizes soldered PC board material for its construction. The builder, DL5NEJ, modified an existing design to achieve a smaller footprint, preferring a compact setup for portable operations. This paddle was specifically built to complement a Wilderness Radio SST20 QRP transceiver kit, demonstrating its suitability for low-power operations. The project details suggest a straightforward assembly process, with the primary components being readily available PC board scraps. The design emphasizes simplicity and functionality, aiming to provide a reliable keying experience comparable to commercial paddles like the Bencher. Performance evaluations indicated the simple paddle operates effectively, prompting further exploration into similarly minimalist QRP rig designs. Additional construction details for a similar paddle are available from PA0CMU.

Table of frequency allocations international & US by Bill McFadden

Creative Express Corporation software to enhance shortwave radio listening. Support for Drake R8A/B, NRD535/D, WJ HF-1000 and TEN-TEC RX-320 receivers, as well as propagation, path evaluation and database management.

N3OX 80m/160m rx loop

Lots of sounds recordings