watt

watt

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• 4 to 1 Balun - 4:1 FB 3061 ROD x 2 balun can handle 125 Watts
  [ Hits: 915 | Votes: 6 | Rating: 6.5 ]

• Multiband end fed antennas - This is a 200 Watt PEP step up transformer for end fed full and half wave antennas without radials, designed as a 200 Watt PEP
  [ Hits: 2274 | Votes: 9 | Rating: 7.32 ]

• Balcony Mounted Buddistick Antenna by KP4MD - The antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
  [ Hits: 281 | Votes: 3 | Rating: 10 ]

• Z-Match Antenna Tuner - A 100-watt Compact Z-Match Antenna Tuner that can match just about anything on all HF bands, and only uses two control
  [ Hits: 2313 | Votes: 2 | Rating: 5.5 ]

• BP-3 Polish WWII Spy Radio Set - The BP-3 was a valve-based spy radio transceiver, developed during WWII by Tadeusz Heftman of the Polish Military Wireless Unit in Stanmore (UK). It was introduced in 1943 and was intended for use by Agents and Resistance Organisations in Europe. The transmitter produces an output power of 50 Watts in CW
  [ Hits: 990 | Votes: 0 | Rating: 0 ]

• HF SIGNALS - Makers of QRP HF General Coverage Transceivers you can build. The Home of BITX transceivers, uBITX General Coverage Receiver-Transmitter. A general coverage, 10 watts HF SSB/CW transceiver kit with features you NEED for operating ease, convenience and versatility. It works from 3 MHz to 30 MHz, with up to 10 watts on SSB and CW, with a very sensitive receiver.
  [ Hits: 483 | Votes: 6 | Rating: 9.5 ]

• HF Portable Ops Solar Powered - An interesting article about amateur radio portable operations with excellent pictures. Setup includes a 60 watts of portable solar power being controlled by a charge controller, and a batteries powering an FT-897D.
  [ Hits: 433 | Votes: 1 | Rating: 10 ]

• Ganymede - QRSS TX - Designs for QRSS TX and other Arduino based systems
  [ Hits: 379 | Votes: 0 | Rating: 0 ]

• Icom IC-PW1 Specifications - The Icom IC-PW1 is a 1000 watt linear amplifier with built-in power supply
  [ Hits: 224 | Votes: 0 | Rating: 0 ]

• Yaesu FT-7800R - The FT-7800R provides 50 Watts of power on the 144 Mhz band, and 40 Watts on the 430 MHz, and is designed for simplicity of operation along with high performance in the receiver section.
  [ Hits: 203 | Votes: 0 | Rating: 0 ]

• Dentron DTR-2000L restoration - The Dentron DTR2000L is an HF amplifier from the 1980 era. It uses a single 8877/3CX1500A7 tube to produce about a kilowatt of RF output. In this page NR7N includes info on operation, restoration and mods.
  [ Hits: 704 | Votes: 4 | Rating: 9.75 ]
• Stone Creek Special 600 HF RF Amplifier - This is a Solid State Amplifier Project. It uses 4 MRF150 MosFet Power Transistors. The Power Supply Voltage is 50 VDC at 21.5 Amp. The max power available is 1,075 Watts. The Efficiency is about 65% +/- and runs Class AB Solid State.
  [ Hits: 270 | Votes: 0 | Rating: 0 ]

• 80W all mode VHF amplifier - 80 watt multi-mode amplifier using one of the newer S-AV36 Toshiba modules. Less than 50 milliwatts will drive it to full output in any mode.
  [ Hits: 531 | Votes: 0 | Rating: 0 ]

• The WB0RIO 28 Mhz Arduino Beacon - This project involves the construction of a 5 Watt Morse code beacon transmitter that operates in the 28.200 to 28.300 section of the 10 Meter Amateur Radio band. The beacon controller uses an Arduino Uno microprocessor board to produce the three signals that control the transmitter.
  [ Hits: 625 | Votes: 0 | Rating: 0 ]

• Coax Loss Calculator Online by K5VR - RF Feedline (Coax and Ladder-Line) Loss and ERP Calculators made with Javascript. This complex feddline loss calculator has already several line types paramenters for most common coaxial cables from Belden, Time LMR, Wireman and other common products. Result will give Matches loss, SWR loss, dB and Watts power loss.
  [ Hits: 252 | Votes: 2 | Rating: 5 ]

• A 500 Watt HF Dummy Load and Power Meter - This project was published in the April 2004 issue of the Australian magazine Amateur Radio, and has been designed using parts which are very readily available.
  [ Hits: 2012 | Votes: 2 | Rating: 9 ]
• A simple QRP Power Meter Project - A really simple project to make a power meter measuring RF output powers from a few mW up to half a watt. A DIY amateur radio project for QRP enthusiasts
  [ Hits: 463 | Votes: 0 | Rating: 0 ]

• How to make a low end SWR/ Watt Meter reading PEP power - Building a PEP Power circuit for all analogue watt-meter
  [ Hits: 1683 | Votes: 6 | Rating: 7.5 ]
• Digital SWR Meter with Arduino - Inline RF Power & VSWR Meter. A DIY meter 0 to 30 Watt with Average and Peak. Circuit Description, Arduino Nano software code and part list to DIY your own Digital SWR Meter
  [ Hits: 3357 | Votes: 17 | Rating: 5.93 ]

• 2N2/6 40 to 6 m Transverter - This project is a 40 meter to 6 meter CW "no tune" transverter using ten 2N2222 transistors and one 2N2907. The transverter requires 2 watts of drive from a 40 meter cw transceiver and outputs 2 watts on 6 meters.
  [ Hits: 319 | Votes: 0 | Rating: 0 ]

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