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Comparison of performance between an indoor random wire versus a magnetic loop using psk31

DX Cluster, classified, files and much more.

A Windows based Spectral Analysis/Receiver Program primarily used with the SDR-IQ, SDR-14 , SDR-IP, RF capturing hardwares

A compact antenna for 160 meters, suitable for hams tha want operate top band buh have a limited space

A complete guide to Baluns and transformers by WK5AJL

GJTracker is a antenna tracking program for windows written to be compatible with WSJT

Development of the Slim Jim antenna for HF

Authorized ham radio store for Alinco Vibroplex Pryme MFJ Enterprises Mirage Amps Ameritron Vectronics DCI Yaesu Comet Antenna

The Kenwood TS-2000 All-Mode Multiband Transceiver review

scanner dealer

TNC virtual phone modem driver for windows 95, known also as TFSlip95

The YB7ZGP Pamaton Repeater operates on a frequency of 146.76 MHz, serving the Martapura District in Banjar, South Kalimantan, Indonesia. This VHF repeater provides local communication infrastructure for amateur radio operators in the region. The repeater's operation is managed by Syah Riyan, indicating a local amateur radio enthusiast or group maintains the station. Repeaters like YB7ZGP are critical for extending the range of VHF/UHF communications, allowing handheld and mobile transceivers to communicate over greater distances than line-of-sight. The 146.76 MHz frequency falls within the 2-meter band, a popular segment for local and regional amateur radio traffic, often utilized for emergency communications and general ragchewing. Information regarding the _Pamaton Repeater_ is presented on a blog platform, suggesting a community-driven effort to disseminate details about this local amateur radio asset.

General purpose amateur radio club serving the NW suburbs of Chicago

This article describes the characteristics of the Windom antenna and shows the results of several simulations made with MMANA-GAL, covering models optimized for the 20 m, 40 m and 80 m bands.

Iran

W1AW code practice transmissions for the dates and speeds indicated. The files are in MP3 format

Building a high voltage (5KV), variable plate capacitor (17 to 220pF)

The society representing the interests of Amateur Radio in Northern Peninsular Malaysia

A very basic guide to antennas concept. Explain the usage of dummy load, basic antennas like dipole o j-poles.

DF9CY implementation of W1HIS suggestion of inserting a common mode choke into a 40m antennas feed-line.

Ukranian radio portal

2 Meter Indoor Slim Jim Antennas for Cyclone Season and Other Uses by VK4MDX

Balun case construction, tipically to host toroid cores. Size of case depends on power to handle. By DL5DBM

Provider of point-to-point microwave radio system sales, service, and integration, employing refurbished name brand digital (DS1/E1, DS3/E3) and analog video radios. Specializing in Microwave Associates (M/A-COM) , Digital Microwave Corp. (DMC/Stratex) and Alcatel/Rockwell microwave radios.

Home of the NERG amateur radio club located in Melbourne, Victoria, Australia

A 2-metre Quad antenna project by K6WXA in PDF file

Micophone for excellence acustic

Helix antenna design and construction details

LM is a program to edit contest logs afterwards, a so-called contest post processor. With help of LM you can convert row data to many different file formats. Allow a quick input interface, and contest score for several contest. Can import & export a batch of logs and to create result lists.

A radio's transmitting power can be concentrated along the horizon by use of a GAIN antenna. Although you may still be transmitting with four watts of power, your effective radiated powerwill be greatly increased. This table shows the effects of antenna gain on a transmitter with 4 watts of transmit power.

RF shop is an Australia online retailer of Radio Communications, Electronics, RF and Microwave component products.

A 40 meter rig with SSB and CW operating modes. This is a low power QRP rig with up to 6 watts CW or PEP output.

This article examines the performance of the Ameritron AL-811H amplifier with the supplied 811A tubes and with 572B tubes, and details a procedure for replacement of existing tubes.

Germany's International Broadcasting Station with links to numerous pages in multiple languages containing program schedules, and live audio feeds.

A PDF presentation about Amateur Radio and Linux by By: Dave Mamanakis. A beginners guide to Linux for radio amateurs, this presentation cover basic concepts of the open source operative system, from the basic installation to the setup of ham radio programs.

Six meters radio club, promote and preserve 50 mhz operations in italy

A 5 band two element quad antenna working from 20 to 10 meters using hardware-store parts or modifying an existing commercial triband quad by KC6T

The 2.1 kHz wide European LF allocation between 135.7 and 137.8 kHz is detailed in this observed band plan, offering guidance for activity within this narrow segment. It specifically addresses the challenge of locating weak signals, such as those from Slow-CW stations, which can have bandwidths of only a few Hertz. The resource emphasizes the utility of precise frequency knowledge when operating with narrow DSP filters, like a 30 Hz filter for CW, to differentiate multiple stations within a very small band segment. The plan, though not officially recognized, provides practical orientation for operators, particularly those new to the _LF band_. It references a similar plan published by the _RSGB_ in the January 2000 issue of _RADCOM_, suggesting a community-driven approach to band organization. The content highlights the importance of spectral awareness, noting that multiple stations can occupy minimal bandwidth, a concept illustrated by spectrographic analysis.

BCL group in central america, caribes, about utilities, pirates and clandestins. In spanish

DX Propagation by DR2W! High resolution SNR maps in pseudo color. Propagation based on the actual sunspot number.

Ham Radio Store in Austria, dealer for Flex Radio, Alinco, LDG, MFJ, Wouxun and many more ham radio brands

Icom france web site

The Super Check Partial database files provide a list of callsigns used by active contesters. The data comes from Cabrillo logs contributed by contesters themselves. Contributed logs from the past 24 months are used to create the database. These logs are combined and filtered so that they result in a fairly good (but not perfect) list. The files do not contain any QSO data, such as state, CQ zone, Maidenhead Grid Locator, etc. The dta files can be used with CT, WriteLog, TRlog, SD, N1MM Logger, NA, Win-Test, and others

DigChip is a provider of integrated circuits documentation search engine, it's also distributor agent between buyers and distributors excess inventory stock.

This ia a home built Magnetic loop antenna which was used by G3BGR, indoors on 7,10 and 14Mhz. The basic idea was in Radcom 1986

Lage collection of 6 Meters and 2 meters QSOs, recorded in real audio format by OE3MWS

Detection and recording of Schumann resonances and other electromagnetic phenomena at frequencies below 50 Hz By Hans Michlmayr

The 23 cm amplifier pictured here delivers more than 300 watts with 10 watts drive.

SignalPoint, Caribbean Contesting Consortium. Curacao. CCC's contesting QTH is the former home of PJ9JT, John Thompson, W1BIH. This historic site has been the home of many contest wins since 1971.

A blog with loggings and information relating to shortwave pirate radio in Europe.