linear

The DXZone.com

linear

193 links - and 3 categories

Antennas : 160M
  • 160m Spitfire Antenna - Spitfire Collinear Arrays for 160 meters band at UA2FW
    [ Hits: 238 | Votes: 2 | Rating: 9.5 ]
Antennas : 40M : 40 meter Dipole Antennas
  • Linear Loaded 40m Dipole - Dipole for 40m band. It is a simple linear loaded dipole feeded with 450-Ohm openwire feedline. Designed it for resonance at 7.050 MHz, can be tuned on 30m and 80m bands with an external antenna tuner. Build with simple electrical copper wire (2.5 mmq/13 awg) and two fishing poles with size of about 7 m/23 ft.
    [ Hits: 159 | Votes: 0 | Rating: 0 ]
Antennas : 70cm
  • Coaxial Collinear Antenna for 70 CM Band - This coaxial collinear antenna was built to test for my own consumption whether or not this antenna method actually works. the guiding principle is that we have multiple 1/4 wave elements fed in series , the radiation from each adds in phase to produce a large vertically polarised omni-directional antenna with substantial gain
    [ Hits: 565 | Votes: 3 | Rating: 6.33 ]
Antennas : Collinear
  • LoRA Collinear Antenna - A simple 6dBi Collinear Antenna for LoRa compared to the Lorank8 gateway default antenna.
    [ Hits: 65 | Votes: 0 | Rating: 0 ]
Antennas : J-Pole
  • Improving Gain of the Super J-Pole Antenna - The collinear J-Pole, often known as the Super-J, does improve the behavior over a regular J-Pole. there is an advantage when vertically combining 1/2 radiating sections to have a bit of separation between the half-wave end points. Get 0.8 dB more gain out of the trusty Super-J by replacing the traditional phasing stub with a long coil.
    [ Hits: 189 | Votes: 0 | Rating: 0 ]
Antennas : Stealth
  • Linear Loaded Dipole for 15m and 20m - A small dipole antenna installed inside a balcony. This linear loaded short dipole antenna has been designed at first for the 21 MHz and then adapted for the 20 meters band.
    [ Hits: 620 | Votes: 2 | Rating: 4.5 ]
Antennas : VHF UHF
  • VHF UHF BiQuad - This is a vertically polarized Broadside and Collinear Array each Loop is a vertically polarized Broadside Array both the right and the left side of the Loop is a bent 1/2 wave dipole working 180 degrees out of phase with the other one and that gives you 4.15dbi of gain
    [ Hits: 174 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : HF Amplifiers
  • A600 Power Amplifier Project - This is a power amplifier project for a RF 600W 1.8 MHz to 70 MHz linear amplifier including a Low Pass Filter. Projects includes schematics, pictures, PCD design, fans details, note on PA ferrite chokes and assembling instructions
    [ Hits: 100 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : UHF Amplifiers
  • 432 MHz 100W RF Power Amplifier - This article describes the construction of a 100-Watt, 70 cm amateur band linear power amplifier. It is the result of a protracted period of experimentation during which I investigated a number of final amplifier stages from obsolete UHF FM 2-way radios.
    [ Hits: 232 | Votes: 1 | Rating: 9 ]
  • 100W UHF Linear Amplifier - This page details my building of a 100 Watt Power Amplifier for the 432 MHz Band based on two Motorola MRF646 transistors taking inspiration by Carlo Gnaccarini VK3PY, formerly VK3BRZ
    [ Hits: 192 | Votes: 0 | Rating: 0 ]
Technical Reference : QRP Projects
  • JBOT QRP linear amplifier - JBOT stands for Just a Bunch of Transistors. It is a simple, stable and easy to build 5 watts linear amplifier build out of a bunch of ordinary low power NPN transistors.
    [ Hits: 81 | Votes: 0 | Rating: 0 ]
Technical Reference : Test Equipment : Signal Generator
  • An introduction to YIG Tuned Oscillators - The YIG Tuned Oscillator (YTO) is the only direct signal source to provide multi octave tuning bandwidths in excess of 10 GHz. Common tuning ranges are from 2-10 GHz, 8-18 GHz and 10-20 GHz. YTO is are also known for their superior phase noise and exceptional tuning linearity.
    [ Hits: 35 | Votes: 0 | Rating: 0 ]
  • Simple 2-tone generator - A simple 2-tone-generator for testing the linearity of SSB transmitters. This device is as simple as useful. With 2 transistors and an oscilloscope, it is fairly easy to test the linearity of your SSB transmitter. The 2-tone-method is a standardized test method that can be used to determine the maximum output and the amplification characteristics of a sideband transmitter.
    [ Hits: 109 | Votes: 0 | Rating: 0 ]

Not satisfied ? Lookup Google Custom Search Engine for linear


Search linear with: Yahoo!, DuckDuckGo , Bing

Search

Related Searches

Get our links, Everywhere!

Follow us on Social Networks
RSS Feeds The DXZone.com RSS feed

Sign up for daily Newsletter

Service provided by Google FeedBurner

Free for your Site

Add our gadgets to your site
Daily Top 10 links

Google Custom Search