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The Hualapai Amateur Radio Club is located in Kingman, Mohave County, Arizona, USA (DM25xf).

Schematic diagram and description of a magnetic loop antenna that works from 10 to 20 meters band, made from junk

Donwload the Kenwood TL-922A user Manual

Guest house with acomodation for 3 more people in Uruguay

Island DXpedition and portable operations, including present, up-and-coming operations, IOTA, NON-IOTA, IOSA, IIA, ILIA, DIB, Lighthouse, and other Island Award Program operations

Article on ham radio mobile operation from Andy D. Crouch N5NDD

Archive of yaesu ft-1000MP digests since january 2001

"Sezione A.R.I. di Torino presents ""Sala Radio"" dedicated to Duilio Secoli I1TMD"

A parabolic dish ring feed optimum resonance frequency of 1325MHz

The Swan Island DX Assn. is based in Raleigh, NC.

All about amateur radio lincencing in India

What makes a good solid-state amp ? by Adam Farson, VA7OJ/AB4OJ, May 2002

The Cabrillo log format specifications, examples and templates.

Electrically shortened dipole antennas, article by Mark Connelly, WA1ION

Quad antenna homebrewing, mechanical considerations by IZ7ATH

May SwaziLand Web Page

The RARC is the oldest ARRL affiliated club in Virginia. Founded in 1929 by Ted Mathewson, W4FJ one of the earliest Ham Radio Operators licensed by the FCC.

Meteor scatter, gives quick view over meteor scatter and scatter events on vhf, lists email addresses of vhf radio amateurs qrv in meteor scatter

Aanarad Trabzon department turkey

All about dipole antenna construction

Shelby amateur radio club's VHF emergency net is open to all within the repeater's coverage area. 146.880 and 147.345 are the repeater frequencies. Shelby Radio Club is the sponsor of the Shelby hamfest.

Fixing the IC-7000 noisy audio that can occur when IC-7000 audio output is connected to Hi-Fi earphones or external speaker.

Operating magnetic loop antennas requires careful consideration of RF safety, particularly regarding near-field magnetic field intensity. This resource presents calculations for magnetic field strength (H-field) at various distances from a magnetic loop, emphasizing that the H-field is significantly higher than the E-field in the near-field region due to the inductive nature of the radiating element. It provides specific formulas and examples for determining safe operating distances based on power levels and loop dimensions, crucial for compliance with RF exposure limits. The analysis compares calculated H-field values against FCC and ICNIRP maximum permissible exposure (MPE) limits for controlled and uncontrolled environments. It demonstrates that even at QRP power levels (e.g., 5W), the H-field can exceed MPE limits within a few feet of the antenna, necessitating greater separation distances than often assumed for electric field considerations. The practical application of these calculations helps amateur radio operators configure their stations to ensure personnel safety and regulatory compliance when deploying compact, high-Q magnetic loop antennas.

This site is dedicated to the repair, restoration, preservation and sale of old collectable radios, both bakelite and wood.

Spipral antenna principle by a concept of Bill Petlowany, K6NO. Tak Antennas are based on this principle, using spirals as dipole linear wires.

The vertical Double-Zepp 2x7 m is a very simple, effective 8-Band-antenna. The end of the Dipol must be 5-10 m above the ground

ON6MU Low Power amplifier

Using a PC with soundcard as a VLF receiver, how to use your PC as a receiver for narrow-band signals in the VLF radio spectrum by DL4YHF

Testing performances of indoor antenna. A comparison of a magnetic loop antenna vs a classic wire dipole done using wsprlite on 30 meters band.

For radio amateurs seeking to identify or verify callsigns from Bosnia and Herzegovina, an online callbook service offers a direct search utility. This resource focuses exclusively on the _T9_ prefix, allowing users to input a specific callsign and query a dedicated database. It serves as a historical reference for contacts made prior to its last update. The utility provides a straightforward interface for callsign lookups, presenting results based on data compiled up to _July 31, 2000_. While the information is static and not current, it remains useful for confirming older contacts or for historical research within the amateur radio community. The service is maintained by _Boris Knezovic, T93Y_, offering a focused resource for this specific geographic region.

GAP Titan DX 10 15 20 40 meter performance tests by AA3RL

Eham user's review on the Heathkit SB-200 HF amp

W0IPL article on NVIS Antenna

Design for a dual-band CW transceiver using the AD9834 Direct Digital Synthesizer

Satellite infos and links by Larry Johnston

A magnetic loop antenna for the VHF band, featuring a high gain that can be compared to a quarter wave vertical antenna

This resource examines the appropriate use of /M (mobile) and /P (portable) suffixes in amateur radio callsigns, specifically within the context of the UK Amateur Radio Licence. It addresses common ambiguities and challenges in determining operational status, such as operating from a summit or while walking. The discussion references the licence version in force before February 21, 2024, noting that while current regulations recommend but do not specify suffix use, the prior definitions remain relevant for understanding common practice. The content dissects key sections of the licence, including "Notes to the licence" (d)(i-iii) which outlines /A, /P, and /M usage based on location, and "Temporary Location" (jj) which defines /P operations. It also clarifies "Mobile" (17(1)(x)) as operating in or on a vehicle, on a pedestrian, or on a vessel on inland waters. The author provides examples and recommendations for choosing between /M and /P when both might apply, such as when operating from a parked car with a deployed mast or using a handheld on a summit. Historical notes from M1MAJ, G8ADD, and G6MZX are included, tracing the evolution of suffix rules from pre-BR68 days to the 1977 licence version. These historical perspectives highlight how past regulations have influenced current interpretations and persistent myths regarding /M usage. The resource emphasizes making an informed choice based on the licence and communicating the station's operational circumstances clearly.

Logging program for Manchester Mineira contest CWJF

40meter band beacon on 7,039.6 MHz

Manufacturer & distributor of vacuum tubes for all applications, we guarantee best service,pricing & delivery and we also guarantee sameday shipping.

Discussion at eham about wire size used in wire antennas, and how it affects the gain of the antenna

The Amateur radio Association of Bloomington (ARAB) holds its meeting on the first Tuesday of each month

A complete EmComm portable station article on eham.net by K9RFZ

Quick and Dirty CW Netiquette

Egyptian Radio Amateurs Assembly

A cheap rf signal generator for 2.4 GHz

Graph of the frequency response of some of the legendary microphones favoured by radio hams

Here you will find information on how antennas behave when stacked G/T is an important figure-of-merit for the antenna's overall receive performance, because it balances forward gain (G) against received thermal noise (T).

Kennewick, Pasco Richland

by SV2AEL