low power

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low power

101 links - and 1 categories

Antennas : Baluns : 4 to 1 balun
  • Low Power 4:1 Balun - Build a Low Power 4:1 Balun , by Charles Greene, W1CG with full-color, full-resolution graphics from the pages of QRP Homebrewer
    [ Hits: 3780 | Votes: 1 | Rating: 5.00 ]
Antennas : Collinear Antennas : Tuners
  • The "Woodpecker" Tuning aid - This little gadget is that it allows you to tune up at full peak output power, whilst limiting the average power to a fraction of the peak, thereby protecting the PA from meltdown
    [ Hits: 3862 | Votes: 2 | Rating: 7.50 ]
  • Emtech ZM-2 Antenna Tuner Kit - The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP (low power). It utilizes the well-known Z-match circuit, which is especially useful for balanced antennas (like dipoles and loops).
    [ Hits: 3176 | Votes: 5 | Rating: 4.60 ]
Antennas : WiFi DX Resources : Beacons : Beacon stations
  • WA8YWO - High Frequency Expermental Beacon "WV". The Beacon operates on the frequency of 13.55567mhz. This Beacon is very low power. It operates under Part 15 of the FCC Rules and Regulations. It transmits with only 1.5 milliwatts of power
    [ Hits: 279 | Votes: 0 | Rating: 0.00 ]
Manufacturers : QRP Kits
  • KD1JV Designs - QRP Kits and Projects for the low power Amateur Radio enthusiast
    [ Hits: 2386 | Votes: 0 | Rating: 0.00 ]
Operating Modes : 50 Mhz Propagation
  • WSPRnet Weak Signal Propagation Reporter Network - A group of amateur radio operators using K1JT's MEPT_JT digital mode to probe radio frequency propagation conditions using very low power transmissions. Computer sent/received Morse signals received by amateurs and collected on an online database.
    [ Hits: 989 | Votes: 2 | Rating: 10.00 ]
Software : Propagation
  • WSPR - WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Stations with internet access can automatically upload their reception reports to a central db
    [ Hits: 1395 | Votes: 3 | Rating: 9.33 ]
Software : Radio Control
  • KTune - KTune is a small utility that allows you to use a Griffin Powermate USB knob to tune your Elecraft K3 radio.
    [ Hits: 341 | Votes: 3 | Rating: 7.33 ]
Technical Reference : Alternative Power Technical Reference : Amplifiers : HF Amplifiers
  • WA2EBY Mosfet Amplifier - A Broadtband HF Amplifier Using Low-Cost Power MOSFETs
    [ Hits: 3520 | Votes: 3 | Rating: 3.67 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • Low power VHF RF amplifier - Low power VHF RF amplifier with VMP1 Mosfet by IZ1BTS IK1XPD
    [ Hits: 2075 | Votes: 5 | Rating: 8.00 ]
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: 1038 | Votes: 2 | Rating: 10.00 ]
Technical Reference : QRP Projects
  • KD1JV MMR-40 dead bug style - A 40 meter rig with SSB and CW operating modes. This is a low power QRP rig with up to 6 watts CW or PEP output.
    [ Hits: 1154 | Votes: 5 | Rating: 8.20 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • 40 meter QRP Transceiver - This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer
    [ Hits: 8692 | Votes: 6 | Rating: 6.83 ]
  • 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: 993 | Votes: 2 | Rating: 8.50 ]
Technical Reference : TVI Filters Technical Reference : Vacuum tube
  • Vacuum tube liquid cooling system - This article describes an alternative to water as the cooling liquid for amateur radio vacuum tube power amplifiers. This cooling system is designed for adequate vacuum tube cooling, reasonable cost, and very low maintenance. By K8CU
    [ Hits: 537 | Votes: 0 | Rating: 0.00 ]
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