working satalites

2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.

EH antennas and CFA antenna - Many antennas function because of common mode currents, rather than working in spite of them. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise.

Understanding Standing Wave Ratios SWR - We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiver’s output power verses the portion of that power reflected by the antenna system By Ken Larson KJ6RZ

2.4Ghz Helix antenna  ^pop - Concise instructions on making a broadband helical antenna for 2.4GHz use, such as: 802.11b wireless networking 2.4GHz video links.

EA5XQ's Projects: Magnetic Loop - Due to my job I have top travel a lot around the world, in order to find a way of making radio I decided to build a Magnetic Loop after some comments of other colleagues for working between 20 and 80 meters mainly.

The Challenge: Receiving Antennas - Importance of receiving antennas in working dx stations by Greg Ordy

Dish 802.11 Wireless Networking Antenna - This antenna modification is for the IEEE 802.11b networking protocol that operates at 2.4 GHz. It can be scaled easily to the 5 GHz frequency used by IEEE 802.11a by simply scaling the dimensions on the feed can and the excitation antenna to 2.4/5 = 48% of the dimensions shown above.

UDY-2 Voice Keyer - The UDY-2 Voice Keyer digital voice keyer amateur radio software utility integrates many popular voice keyer features in one convenient easy to use program. Whether you're working a contest as multi op, single op, running a net, or just plain rag chewing the UDY-2 Voice Keyer has something to make hamming more fun and convenient for you.

ARIDX by UA1AAF - At the moment the most used program is UA1AAF. It is an excellent program written by Boris, UA1AAF, to handle ARI International DX Contest. It can simulate K1EA or N6TR workings; it will be possible to connect the RTX to the computer using a standard interface in such a way as to transmit directly in CW from the keyboard; most of the controls are like K1EA's CT and N6TR's TR ; on line help provides almost all the information necessary for using the program. Is possible to insert QSO after the contest. An appropriate utility in included for conversion in ADIF format. The program is very small and therefore works without any problems on any IBM compatible computer with DOS 3.3 and over or Windows 95/98.

LT7W - Grupo TITAN - Special Callsign by TITAN Group, from Chubut, Patagonia Argentina - Working DX - Contest - ILLW and special events.

The Society for the Preservation of Amateur Radio - The Society for the Preservation of Amateur Radio is a non-partisan group of concerned amateur radio operators working together to ensure the vitality of the Amateur Radio Service by promoting technical abilities among Amateur Radio Operators. Includs a beginners guide booklet.

MAXRAD Antennas - manufacture networking antennas and accessories for 802.11a, 802.11b and 802.11g WiFi (Wi-Fi) and WiMAX applications, including wireless bridging, wireless LANs, RFID and wireless hots spots

AN Wireless Tower Company - AN Wireless is a manufacturer and distributor of Self Supporting Tower Systems for Wireless Communications, Wireless Internet, Wireless Networking, Microwave, Paging, Broadcast, Two-Way Radio and Amateur Radio.

Split Operations - When and How - When do you need to go to a split operation ? When the people you are giving reports to are not answering, or when you are not getting your report from the station you are working because of other stations who are continuously calling.

APRS Working Group - APRS Protocol Specification Version 1.0 was adopted by the APRS Working Group

WSJT for Meteorscatter – Tips and Tricks to start - Tips and tricks to start working Meteorscatter with WSJT. Author: PE1AHX

An Introduction to FlexNet - Features and operation of FlexNet packet networking software are discussed. Details of the software architecture, RMNC and MS-DOS hardware platforms, applications, user interface, adaptive parameters, and routing techniques are presented.

Ardf IARU Region II - The IARU Region II ARDF Working Group defines the official rules for ARDF in IARU Region II, organizes the IARU Region II ARDF Championships, and supports the growth of the sport throughout the region.

Current Optimal Frequency Charts - Optimal Working Frequencies (MHz) for High Frequency (HF) / Shortwave Radio. By region, updated monthy.

Sawt Lubnan Al-Houriya - Daily updated news on events in Lebanon and the MEA. Official web site of the FPM (Tayyar watani Horr) a lebanese political group lead by General Michel Aoun, working for a free and sovereign Lebanon

Satscape  ^updated - Satscape is a freeware program for the PC Macintosh and Linux. It produces real-time displays of where any Satellite is, and predicts passes for your locale. There are about 8000+ satellites in orbit, a lot of these are just junk and debris such as discarded rocket bodies, but quite a few are working Satellites.

Wireless Field Day Log Program - A reliable logging system for Field Day based on wireless networking. Freeware, runs on macintosh, linux and windows

UR5FCM Log - UR5FCM Log a powerful Ham Logbook. It is a working center on radio station on daily realization of radio communications, and also, since version 1.1.61 new features of work in digital aspects of connection

Ham Radio Online - Computer Networking RFI - This page is to provide links to resources and information regarding technologies to reduce computer interference

Broadband news : another bpl trial dropped - The company trialing the technology has decided BPL was not "commercially deployable," and has instead decided to focus on wireless mesh networking in the region