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• Setting the SWR of Your Antenna - SWR (standing wave ratio), is a measurement of how efficiently your antenna system will radiate the power available from your radio. In simple terms, your radio would like to radiate all of its power, but can only do so if the other components cooperate
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• How to Use an Antenna Tuner - Get maximum power to your antenna by learning how to hook up and use a tunner to properly "trick" your rig
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• Brand Electronics - Power meters
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• OM Power - HF Amplifier - Strong RF HF power amplifiers made in europe ! Output 2,5KW 4KW PEP, 160m to 10m.
  [ Hits: 8674 | Votes: 26 | Rating: 7.27 ]

• Ameco - Text books relating to amateur radio (HAM radio), highpass and lowpass power filters, transmitter test loads (dummy loads), study tapes and disks to learn morse code, transceiver preamplifiers, antenna signal boosters.
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• Citel - We have a wide range of power protectors and surge protection products available
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• Eimac - Innovators in Power Tube Technology
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• HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
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• Auto Band Select Box for the FT-817 - This project is an interface box for the Yaesu FT-817 that includes a band output port, a computer serial interface, and a remote interface for the FL-7000 (and Quadra?) solid state power amplifiers
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• Rebuilt Power Vacuum Tubes - ECONCO has been rebuilding vacuum tubes for more than 30 years. Our commitment to quality, and concern for the environment has won us the acclaim of clients worldwide.
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• Advanced Communications - Refurbished used test equipment, rfand power amplifier repair, two way radios sales and service
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• Nec2Go - Powerful antenna modeling tool using NEC 2 computing engine. Nec2 specifically provide users, either those experienced with the Nec2 processes, or for those who are neophytes but want to model their own antennas. Nec2Go uses a simplified process for defining the antenna structure and then providing view of the structure, plots (2D and 3D) and other significant data that is pertinent to the design. This simplified process uses an edit file with equations for all definitions.
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• SWR Calculator - Computes the Standing Wave Ratio, given the power readings on a line.
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• Cobracom - Oscilloscope, Realtime spectrum analyzer, Impedance meter, RLC bridge and signal generator for Windows. Is a Windows application that converts your PC into a powerful dual-trace signal analyzer (oscilloscope, FFT etc...) . Uses your PC sound card as an Analog-to-Digital a Converter to digitize any input waveform and as Digital-to-analog Converter for the signal generator. True 24 bit adc/dac 48K/96k/192k sampes/sec.
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• Amateur Radio RF Safety Calculator  ^updated - University of Texas Amateur Radio Club RF-Calculator. This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations
  [ Hits: 6115 | Votes: 28 | Rating: 7.97 ]

• Convert PC Power Supplies for use by Ham Radio - PC power supply conversion for ham radio use. Slide show overview showing how convert PC Power supplies to ham radio use presented at the August 2007 FSARC meeting.
  [ Hits: 4068 | Votes: 6 | Rating: 8.17 ]

• VK5VKA 's non technical bpl/plc information - VK5VKA page contains general information and comment on "BPL" (Broadband over Power Lines) or as it is known elsewhere "PLC" (Power Line Communications).
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• Powerline communications - Europeam perspective on BPL PLC
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• Broadband news: EU sets bpl guidelines - The EU has followed the U.S. lead in clarifying rules surrounding BPL (broadband via power-line) technology
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• Broadband news : Canadian BPL - Hydro-Québec joins efforts to provide high-speed internet service via power-lines
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