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• Helical Feed Antennas - Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization, since they have the unique property of naturally providing circularly polarized radiation. Paul Wade W1GHZ
  [ Hits: 1918 | Votes: 2 | Rating: 3 ]

• Patch antenna for APT - The patch, or microstrip, antenna has become a common workhorse for the microwave spectrum from about 1 GHz to tens of GHz. This type of antenna consists of two conducting layers separated by a dielectric to form an extended capacitor by WlHDX
  [ Hits: 1234 | Votes: 1 | Rating: 10 ]

• Loop Antenna Basics - Loop Antenna Basics and Regulatory Compliance for Short-Range Radio
  [ Hits: 847 | Votes: 0 | Rating: 0 ]

• The EZ-Tuner - The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.
  [ Hits: 5569 | Votes: 1 | Rating: 9 ]

• V6 DX-pedition 2007 - Six members of the Japan Amateur Radio League (JARL) Kyoto Club, made a DX-pedition to the Federated Stetes of Micronesia (FSM) in summer 2007. This was one of the events celebrating our club's 60th anniversary. IOTA: OC-010 (Pohnpei Islands)
  [ Hits: 357 | Votes: 0 | Rating: 0 ]

• British Columbia FM Communications Association - Amateur Radio organization specializing in VHF, UHF, and microwave communications.
  [ Hits: 736 | Votes: 1 | Rating: 10 ]

• 50 MHz and Up Group of Northern California - A non-profit public service and educational amateur radio organization specializing in advanced and experimental microwave communications.
  [ Hits: 666 | Votes: 0 | Rating: 0 ]
• Western Amateur Radio Association - The Western Amateur Radio Association, founded in 1978, is a Ham radio club based in Fullerton, California. The club supports and participates in many activities, including Field Day, transmitter hunting, microwave, satellite, and APRS, to name a few.
  [ Hits: 336 | Votes: 0 | Rating: 0 ]

• W5HN North Texas Microwave Society - Dedicated to Promoting Activity, the State of the Art in Equipment Design, and the Exchange of Ideas and Technology for the Amateur Bands Above 902 MHz
  [ Hits: 440 | Votes: 1 | Rating: 10 ]

• MicroWeather - An APRS-compatible Ham Radio Weather Station
  [ Hits: 683 | Votes: 0 | Rating: 0 ]

• MicroMetal - Manufacture high quality low cost powder cores with a wide selection of shapes
  [ Hits: 618 | Votes: 0 | Rating: 0 ]

• Maxdao Technologies - Maxdao: offer you 7/16, N coaxial connectors, jumper cables, feeder clamps and grouding kits, surge arresters & brackets, wall entries and microwave components used in base tower, power dividers, couplers
  [ Hits: 547 | Votes: 1 | Rating: 10 ]

• Unified Microsystems - W9XT contest card DVK Digital Voice Keyer, morse keyers CW memory keyer, beacon CQ IDer, USB interfaces and more for ham radio operators
  [ Hits: 4936 | Votes: 2 | Rating: 5 ]

• Micro908 Kit - A re-usable control & computing platform for antenna measurement, PSK31 digital modems, audio filtering, signal source & VFO, memory keyer by AMQRP
  [ Hits: 1570 | Votes: 1 | Rating: 10 ]

• Trilithic - Broadband instruments, R and microwave components and filters, field analyzers, spectrum analyzers
  [ Hits: 571 | Votes: 0 | Rating: 0 ]

• The Yaesu MD-100A8X - Yaesu MD-100 A8X desktop dynamic microphone review by G3NGD
  [ Hits: 387 | Votes: 4 | Rating: 6 ]

• LP-Rotor - LP-Rotor 2.0 is a standalone freeware rotator control program for use with Microsoft Windows. LP-Rotor should work with all versions of Windows from Windows 95 forward. It is designed to be used with the Hy-Gain DCU-1 or RotorEZ interfaces for Hy-Gain rotators, or the RotorCard interface for Yaesu rotators.
  [ Hits: 4985 | Votes: 5 | Rating: 6 ]

• DroidPSK - DroidPSK is an android application to decode and encode Ham Radio BPSK31 with the build in microphone/speaker or wired to your radio. This app run on Android Devices only.
  [ Hits: 11477 | Votes: 43 | Rating: 6.68 ]

• Audio processor for SSB transceiver - This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.
  [ Hits: 1447 | Votes: 1 | Rating: 1 ]

• Home Brew a Condenser Microphone - An inexpensive condenser microphone with excellent performance can be easily constructed with easily available parts.
  [ Hits: 1887 | Votes: 2 | Rating: 5.5 ]

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