tu tubes

Big Antennas by PA3EPN Priority listing - Photos of setup of towers and antennas

HB9DSU dxpeditions - ex 9q5hx, s79hx, 4l1hx, 4k1hx, 4j0/ik2bhx, j3/k2bhx, 4u0g, operator at IR4T, J3A, 4U1ITU, 4U1UN

CT1END Carlos - DX information , logs , QSL Managers, QSL Service , BPDX - Portuguese DX Bulletin

Anatolian Radio Amateurs Association - Aanarad Trabzon department turkey

License and Morse Code Tutorials - Amateur radio and morse code tutorials for obtaining your FCC Technician Class Amateur Radio License. Earn your ham radio license and learn the morse code.

The Boatanchor Classifieds - A free service dedicated to enthusiasts of fine tube gear from Amateur Radio's classic era.

RTX Pictures - Photos of many RTX from Yaesu Kenwood and Icom

NH7C Amateur Radio Social Network - NH7C.com was created with the user in mind and sports many of the latest features available. Whether you have interest in Contesting, QRP, CW, Emergency Communications or any other facet of Amateur Radio, you are welcome here at NH7C.com.

Valcom Fibreglass Whip Antennas - Manufacturer of Fibreglass Whip Antennas, Low and mediun Frequency, HF and VHF Antennas Specialized in the design and manufacturing of a full range of Beacon (MF), AM Broadcasting 540 - 1700 KHz, HF 1.7 to 30 MHz, VHF 30 to 156 MHz and UHF 200 to 500 MHz antennas.

Construction tubulaire de l'Artois - Towers manufacturer in France

ATNF - Australia Telescope National Facility - Operates the Australia Telescope, a set of radio telescopes in New South Wales. These telescopes are used, individually or together, to study objects in the Universe ranging from the remains of dead stars to entire galaxies.

Caltech Submillimeter Observatory (CSO) - A 10.4-meter diameter, submillimeter spectrum telescope. Situated at the top of Mauna Kea, Big island, Hawaii.

FCRAO - A 15-meter diameter, submillimeter spectrum telescope. Situated near the summit of Mauna Kea, Big island, Hawaii.

The Very Small Array (VSA) - in Tenerife (Canary Islands). Designed to study fluctuations in the Cosmic Microwave Background (CMB) thought to originate from the period immediately following the big bang. Operated by Cambridge and Manchester Universities (UK).

La Telegrafia - Complete information on morse-code in italian

ND2X QRO via Russia - Data about surplus Russian tubes and examples of PA's which use them from HAMs

OE6IWG VHF DX from southern Austria - Walter describes his VHF Expeditions in Greece, some VHF logs online to search and lots of typical VHF homebrew stuff.

OZ1ALS contest results - Homepage of radio club oz1als, contest results, pictures etc

Todd Emslie's TV FM DX page - Australian page featuring 45-108 MHz VHF DX via Es, multi-hop sporadic E, TEP, and F2 propagation.

Radio DX Center - French distributor for Palstar, Nagoya, Emotator, Belden, Vimer, RM, Batteries compatible, RF connectors... dealer for Kenwood, Alinco, Icom, President, Sirio, Syncron, Midland... Manufacturer for I.T.A. Antennas

EchoFilter - EchoFilter uses the soundcard of a PC to process income audio signals in real-time. The narrow filter bandwidth allow the extraction signals and sounds from the audio signal that may normally be close to inaudible. It is intended for radio HAMS, hobbyists, researchers, scientists and students in the DSP field.

SpotCollector  ^updated - A free application that captures DX and WWV spots from up to 5 internet clusters and a local packet cluster. DX Spots are merged and stored in a Spot Database on your PC, enabling you to monitor, sort, and filter them in real time; known LotW participants are highlighted, as are needed stations. WWV spots are plotted to show SFI, A, and K over the last solar revolution.

DXKeeper - DXKeeper is a free application that logs QSOs, tracks award status, generates QSL cards & labels, addresses envelopes, uploads QSOs to eQSL.cc and LotW, and downloads progress info from eQSL.cc and LotW. It can reference the RAC, Hamcall, and QRZ callbooks as well as the QRZ.com web site to fill in data when logging, or to update already-logged QSOs. DXKeeper automatically interoperates with all members of the freeware DXLab Suite, including Commander (transceiver control and bandspread for Alinco, Elecraft, FlexRadio, Icom, Kachina, Kenwood, TenTec, Yaesu), DXView (world map, rotator control), WinWarbler (PSK, RTTY, CW, Phone) and SpotCollector (DX and WWV spots). It also interoperates with MMTTY, MMVARI, MMSSTV, MultiPSK, MixW, DX Atlas, and Ham Radio Deluxe.

R25Log - R25Log is an universal Log-Program, developed by active Hams for active Hams. Tested and proved in real QSO-operation, it combines all functions of conventional log-progams with a number of new features and a wealth of informations, input- and evaluation-possibilities. Freeware run in DOS Shell

Morse Code Practice Java Applet - CW ear trainer for Java-enabled browsers. Sends custom text, random groups of letters/digits/punctuation, or any random characters. 5-18 WPM code speed (18 WPM character speed).