This book provides plenty of insight into how you, too, can Capture the Magic of Six Meters. It covers propagation, equipment, software, antennas, awards and contesting, as well as assistance in finding the magic.

DX Commander produces economical multi-band antennas available in kit form. 4 Square array vertical antennas, vertical multiband antennas, sota and travel antennas

A fun little project I did over a couple of days was making this little 6 element yagi for 70cm. There are so many designs and ways one can do this so after some reading of different designs and measurements

Weak Signal Propagation Reporter Network Map and Database of WSPR data

Unlike older radios, the 706 uses only one crystal oscillator (called the Master Oscillator). All other frequencies in the radio (L.O., 3-4 I.F. stages, VFO, and CW-offset) are computer-derived from the Master Oscillator. This makes it relatively simple to frequency-align the radio, so that it agrees with the Frequency Display in all modes.

UA9QCQ site was created as a website for those who participate in various radioamateur contests. In the Calendar section, you can view the competition calendar. Calendar data is updated monthly on the eve of the next month. We try to ensure that our calendar contains only up-to-date data.

Programming the Wouxun KG-UV3D and the Baofeng UV-5R+, getting your computer to recognize the programming cable, installing the Wouxun software and hints on how to program Baofeng radio UV-5R.

This design makes the most of having to put an aerial in the attic. This inverted-vee yagi is giving good results at GW0GHF. Directive gain is about 6 dBd. The front-to-back ratio is not brilliant, about 20 dBd.

HAM radio related clipart gallery, is a large collection of amateur radio gifs and jpeg images classified in several categories

Ham racio clip art collection with free to use images. Additional amateur radio clip art can be found by changing the search term

WSJT DX Aggregator is a program that allows the stations using the WSJT-X or JTDX or MSHV programs to automatically upload DX reports to DXMAPS.com

In cooperation with the URSI Ionosonde Network Advisory Group (INAG), the LGDC promotes cooperative agreements with the ionosonde observatories of the world to accept and process real-time data of HF radio monitoring of the ionosphere, and to promote a variety of investigations that benefit from the global-scale, prompt, detailed, and accurate descriptions of the ionospheric variability.

All daily drawings of the sunspot groups and USSPS produced by INAF – Catania Astrophysical Observatory from 2009 up today are available in this page. The drawings of sunspot groups and pores are maken by a Cooke refractor (150mm/2230 mm) on a 24.5 cm diameter projected image of the Sun.

A simple portable dipole antenna for the 40 meter band using a total lenght of 18 meter. It can be used for 80 to 10 meters coverage using a antenna tuner.

Free to download PDF book about operating The VHF/UHF bands written in the early to mid-1990s by a team of experienced VHF/UHF DXers and equipment developers, in an effort to pass on their knowledge and stimulate further developments.

Amateur radio loop antenna project using a Comet CVBA-500BC vacuum variable capacitor.

With this tool it is possible to create QSO maps overlay on Google maps there each QSO get a line from the home location to each DX location. An EDI logbook file is used as input. The creation will only use complete locator in the 6 characters format.

P5/4L4FN ED operations from North Korea from Pyongyang, DPRK 2001-2002, includes statistics and online log

Alpha 87A Amplifier Fault 1 and the downlevel amplifier

How to protect your receiver when operating in SO2R and using beverage antennas. A custom protection box made with two resistors and 2 stack of diodes.

16th HST World Championship Organized by Bulgarian Federation of Radio Amateurs September 2019

Thsi article describes a microcontroller driven semi-automatic antenna tuner capable of handling power levels up to 150 watts. The device is a low pass filter tuner manually tuned by setting the optimized L/C combination by hand and then storing the values into the EEPROM of the mictrocontroller to recall them later (seperately for each band from 80 to 10 meters including WARC bands)

Zeus Radio program is designed specifically for the ZS-1 transceiver and supports all the basic functions (RIT, XIT, SPLIT, Noise Reduction, Auto Notch Filter, etc.) in order to work in the broadcast brought only pleasure. Zeus Radio works also with Hermes, Anan, Afedri, Red Pitaya, HiQSDR, Odyssey, Extio, RTL-SDR, Peaberry, Winradio, SDR-IQ, Afedri

How-to decode and Display APRS Packets from WebSDR Audio using linux computer

This page contains links to a variety of data signals that have been specially recorded. Each file contains a standard test message (the quick brown fox jumped over the lazy dog) repeated twice. The files can help you learn the characteristic sound of various data modes but they can also be used to make sure your decoder is working.

How to solve the problems with the ICOM IC R7100 receiver that every time the squelch opens or closes, it produces a clicking noise.

Repairing an Anritsu MS2711A handheld spectrum analyzer

Members of the Low Bands Contest Club (OM7M) will take part in an DX-pedition to Pemba Island AF-063 from 6.2 – 18.2. 2020. They will be on air from 160-10m CW, SSB, RTTY & FT8. Also participation in the ARRL DX CW and CQ WPX RTTY contests. The licence is issued and callsign will be 5H4WZ.

This is a antenna tuner with wide range tuning for antennas with a Z of + 50 Ohms on all the HF bands.

A Multiband Slinky Coil for the PAC-12 portable Antenna, can be used also as a dual PAC-12 dipole by James Bennett

QSO Procedure for Airplane Reflections, Reporting system and procedure, confirmation procedure and requirements for a complete QSO

PI-RX is a beacon monitoring program capable of decoding PI4 and showing the performance of the decoded signal

A popular free DX Cluster app for Android. It can be found on the Google play store. Mircules DX Cluster LITE is a FREE Android app that shows the info found on the international DX Cluster.

Software for Aircraft Scatter Prediction. Extend your capabilities on VHF-/UHF-SHF bands even when you live in an unprivileged location and Calculate a propagation path between two stations and follow the aircrafts in real time

Here we have a ground plane antenna mostly used for 144, 222, 440 Mhz. Its one of the simplest antennas to make. New hams can build this with little to no experience in antenna building.

Arduino Antenna Switch, the basic program was written by Johan, PE1RWL

RF Ammeter homebrew by CX2UA in spanish

How to get a wider (up to 7kcs wide) and cleaner TX audio transmission from the TS-2000 for those interested in ESSB.

An example of amateur radio GoBox with pictures and presentation of devices include. In Spanish

Meet The Breakers Cb Radio from the United Kingdon, brought to you by Colin The Head, star of Disused Railway Diaries and Colins World Of Everything, Antenna, Ham Radio and signal checks.

A custom manual for the Yaesu FT 450 owners, tha includes system controls, factory reset procedure, procedural uses, memory management, programming and many more

The Heathk SB-1400 MF/HF AM FM SSB CW transceiver by Heathkit reviewed on QST 1989

ICOM IC-2300H 2 Meter FM Transceiver A worthy successor to the IC-2200H, a popular high power 2 meter mobile rig QST review

Amphenol RF is a leading manufacturer of coaxial connectors for use in radio frequency, microwave, and data transmission system applications. Headquartered in Danbury, Connecticut, USA, Amphenol RF has global sales, marketing and manufacturing locations in North America, Asia and Europe. Standard products include RF connectors, coaxial adapters and RF cable assemblies. Custom engineered products include multi-port ganged interconnect, blindmate and hybrid mixed-signal solutions.