Jpole and vertical antennas from Greece for HF and VHF amateur radio use.

YT1AD leads a team to Swains Island (new DXCC entity). April 2007

WD4RBX has a site devoted to PropNET studies. PropNet uses a network of PSK31 stations on HF and 6 meters (uploading data to the internet) to study propagation. It extends the concept of ham radio HF beacons beyond answering the question as to if the bands are open and deeper into radio propagation causes, effects and trends through data analysis.

The WB2HOL Tape Measure Beam is a popular RDF/foxhunting tool that is inexpensive and easy to make.

The WB2HOL tape measure VHF beam is offered in kit form from Marvin, KE6HTS.

The K0OV Offset Attenuator is sold as a kit and completed assembly by KE6HTS (Marvin). These are used by fox-hunting (Amateur Radio Direction Finding) enthusiasts to provide a means of attenuation (and freq shift) when signals are especially strong. By offsetting the frequency a few MHz, leakage issues can be addressed. An offset attenuator consists of a local oscillator (LO) connected to a diode mixer through the attenuation control. The higher the LO level, the higher the amplitude of the offset signal applied to the receiver. To increase attenuation, decrease the LO signal into the mixer with the control.

Station, activities and ham radio antennas and projects at DB9EX in Germany

HB9TQB in Switzerland has a shack webpage featuring his Kenwood TS2000X, Yaesu VL-1000 Quadra 1KW HF Linear Amplifier and Zero Five multiband vertical HF ham radio antenna.

IL poratle del radioamatore, una community per incontrarsi on line per radioamatori,swl,cb e per tutti gli appassionati di radio. Un forums, manuali,normative, qsl cards,annunci gratuiti,news dx,software e altro.

Freeware Windows-based contest logging software:
Free Windows software supports Win98, ME, W2K, NT & XP.
° Does not control radios or rotors, no networking or Packet.
° No contest setup or config files needed to start a contest.
° Is a contest logger, not `Awards` software. 5000 QSO limit per log file.
° Creates CQ Zone, ITU Zone, Grid square and DXCC totals.
° 54 QSO Parties supported.
° Logs many VHF/UHF contests not supported by VHF LOG.
° Shows Counties/States & Sections worked, to be worked.
° Automatic CW message with incremented serial number.
° Grid Square distance/heading routines, plus Grid maps.
° Selectable partial callsign search. Use GenSort to make datafiles.
° Writes ASCII and Cabrillo format Log files.
° Imports and exports ADIF format files.
° Writes STF log files for selected DARC contests.
° Writes EDI log files for R1 VHF/UHF contests. EDI Application
° Auto UTC offset. Just in case, adjust the UTC hour in your log using Gen Time.
° DVK - Call the working station in your voice.
° CW keyer - Memory and keyboard CW, w/ TX PTT.
° Burst CW - multi-speed contest messaging.
° Windows style HELP, general and for each contest.

The North America QRP CW Club (NAQCC) is dedicated to QRP/QRPp operation, using strictly CW. Some club awards, challenges, and contests will place emphasis on using simple wire antennas.

DXShell Ham Radio software: LogChecker, DXSpotter, ADIF Master, IE Callbook, RigResident (xcvr control from your PC), eQSLMaster, and ALL2DTA (DTA file creation).

KB9AMG's Top DX Spots and Spotters. This page queries DX spotting sites to determine which spotters were posting DX spots the most, which dxpeditions/dx were spotted the most, and other stats related to ham radio dx spots.

Need to add a PL-259 connector to some RG6 coax? Phil Salas – AD5X - has an article on connectorizing RG6.

Mobile Ham Radio Operating Tips by AD5X. This document answers many questions about mobile ham radio operation including grounding issues, antenna mounting, radio mounting, and operating tips.

K4RO is a TCG member, contester and HF enthusiast.

QSL Maker by WB8RBR is a free Windows software program that allows hams to design their own QSL cards and print them on inkjet or laser printers. Users may layout QSL fields such as RST, Callsign, Power, QTH, Name, and more. Additionally, images may be easily imported to the card design.

SCR-Log is a logbook for the amateur radio School Club Roundup contest that runs on multiple PC platforms (Mac, Windows PC, Linux).

Have a Yaesu FT-1000 with the BPF-1 option and are into HF weak signal DXing? This mod might be for you.

A site devoted to the Atlas 180, Atlas 215 and Atlas 210 transceivers. Atlas were the first readily available 12V all transistor radios to hit the amateur market. They were introduced in 1973 and lasted until the early 1980s when the competition got too hot. All models are rated at 80W output (falling to 50W on 10 metres) and cover 160 to 20mtrs (Atlas 180), 160 to 15mtrs (Atlas 215) or 80 to 10mtrs (Atlas 210).

9W2CBL Ham Radio Blog from Malaysia

Stainless electrical hardware Full size or shortened dipoles Single band or Multi band Half Square Antennas Fan Dipole Antennas Delta Loop Antennas Antennas completely assembled Loading coil packages

4nec2 is a freeware antenna modeling program that has 3d output capabilities. From the website: 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. When running frequency sweeps, linear or logarithmic style SWR, Gain, F/B-ratio and impedance line-charts are produced. With the included Optimizer and Sweeper one is able to optimize antenna- and/or other environment-variables for Gain, resonance, SWR, efficiency and/or F/B, F/R-ratio. With the sweeper one is able to graphically display the effect of changing one or more of these variables for a specified range of values/frequencies. For the starting modeler a graphically based 3D geometry-editor is included which requires no additional NEC knowledge while still enabling you to create and visualize and compare current-distribution, far/near-field patterns and Gain/SWR charts. More experienced modelers can use the gradient style and/or the genetic algorithm based optimizers to improve their designs.

Ham radio blogging aimed at would-be or new operators.

Digital Modes Club Free lifetime membership If you are active or just would like to start on the DIGITAL MODES like: RTTY,PSK31,MFSK16,MT63,TOR,AMTOR,PACTOR,PACTOR II, PACTOR III,G-TOR,CLOVER,HF PACKET,HELLSCHREIBER,THROB etc.