low power transmitter

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low power transmitter

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Antennas : Tuners

  • Semi-automatic antenna tuner project - Thsi article describes a microcontroller driven semi-automatic antenna tuner capable of handling power levels up to 150 watts. The device is a low pass filter tuner manually tuned by setting the optimized L/C combination by hand and then storing the values into the EEPROM of the mictrocontroller to recall them later (seperately for each band from 80 to 10 meters including WARC bands)
    [ Hits: 265 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : Technical Specialty : QRP Clubs
  • NOGA QRP club - Small, but growing, group of amateur radio enthusiasts, most of whom are within 90 miles of Atlanta, are interested in promoting the development of the branch of amateur radio known as QRP - building and operating low power transmitters, receivers and transceivers.
    [ Hits: 1583 | Votes: 5 | Rating: 8.2 ]
Manufacturers : Antennas : HF : Active antennas
  • 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.
    [ Hits: 2193 | Votes: 0 | Rating: 0 ]
Manufacturers : Microwave
  • Low Power Radio Modules - Low power radio modules - supplying rf modules, rf transceivers, radiometrix transmitters receivers, low power radio modules, scada, frequency hopping, 900 mhz, wireless data transmission, data telemetry, gps modules & receivers and more
    [ Hits: 811 | Votes: 0 | Rating: 0 ]
Manufacturers : Transceivers
  • Low Power Radio and Broadcast Company - Manufacturers of high performance low power am transmitter products: sstran amt3000, bc-100, and the mw-250. for home and professional use.
    [ Hits: 2705 | Votes: 1 | Rating: 5 ]
Operating Modes : QRP
  • QRP - Low Power Operating ARRL - QRP is a way of operating that involves using low power transmitters, that are no more than 5 Watts for Morse or data modes, or 10 Watts pep for voice. Introduction to QRP operations
    [ Hits: 59 | Votes: 0 | Rating: 0 ]
Operating Modes : Radio Direction Finding
  • A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
    [ Hits: 2013 | Votes: 3 | Rating: 5.33 ]
  • 80M Fox-Or-Test Transmitter - The 80 metre fox-or/test transmitter is a small low power transmitter which is designed to be used as an alignment aid for running up 80 metre foxhunt or ARDF receivers. It is also usable as a micro transmitter for fox-or-ing events.
    [ Hits: 706 | Votes: 3 | Rating: 2.67 ]
Technical Reference : Homebrew
  • QRP AM(cw) Transmitter for 10 meters - In this project, you will make a simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator.
    [ Hits: 1209 | Votes: 2 | Rating: 10 ]
Technical Reference : QRP Projects
  • 136 kHz QRP Transmitter - The Marathon is a low power transmitter for 136 kHz
    [ Hits: 166 | Votes: 1 | Rating: 6 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • QRP AM CW transmitter - A simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator
    [ Hits: 1082 | Votes: 2 | Rating: 8.5 ]
Technical Reference : Radio Direction Finding
  • 2M Programmable Fox-Or Transmitter - The 2 metre fox-or transmitter is a small low power transmitter which mounts in a small plasic pipe and runs off two AA batteries. The board measures just 12mm by 70mm.
    [ Hits: 1059 | Votes: 2 | Rating: 1 ]

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