80 meter transmitter

80 meter transmitter

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: 285 | Votes: 0 | Rating: 0 ]

• 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: 2034 | Votes: 4 | Rating: 6.5 ]

• 80 m CW Beacon - An home made CW beacon transmitter project running 1.5 W on the 80 meters band
  [ Hits: 570 | Votes: 0 | Rating: 0 ]

• A Three-Band One-Tube Novice Transmitter - A homebrew radio transmitter project, based and inspired by the original 30 Watts input on 80 50 and 15 meters band transmitter by W11CP
  [ Hits: 331 | Votes: 2 | Rating: 10 ]

• 500mw CW Transmitter - A very quick and easy way to get on the air is to build a "Michigan Mighty Mite" CW transmitter for 160, 80, 40 or 30 meters. It can't get simpler than this. It has very few parts, costs almost nothing, and it works! Cost estimate $10 by VE6WTF
  [ Hits: 9516 | Votes: 9 | Rating: 5.78 ]
• 80 meter Ceramic Resonator VXO CW Transmitter - Frequency agile 80 metre CW QRP transmitter. Ceramic resonators vary in the frequency shift obtainable. The one in the prototype of this article gave 3.525 to 3.558 MHz coverage.
  [ Hits: 216 | Votes: 1 | Rating: 1 ]

• ARDF transmitter for 80 meters - The 80m TX described here is the well known ON7YD ATX-80 and timer, combined and re-engineered to fit a readily available enclosure by G3ZOI
  [ Hits: 1092 | Votes: 1 | Rating: 9 ]