homebrew rf
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Antennas : 23cm- A Homebrew Yagi for 1296 MHz DX
- The author who works successfully via EME on this band wants to describe his own yagi design and give some of hints for the construction. by Heinrich F. Reckemeyer, DJ9YW
[ Hits: 488 | Votes: 1 | Rating: 5 ]
- End Fed Half Wave Antenna Coupler
- Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.
[ Hits: 1426 | Votes: 1 | Rating: 10 ]
- Build your own Hexagonal Beam
- A web site dedicated to hex beam homebrewing. The hexagonal beam has become a wildly popular antenna. It is a directional antenna that provides great performance and does not require a full scale, expensive tower.
[ Hits: 1173 | Votes: 2 | Rating: 6.5 ]
- Horn Antenna dimensions
- Antenna design for Horn Antennas
[ Hits: 504 | Votes: 3 | Rating: 3 ]
- Magnetic Loop Antennas
updated
- A complete guide to magnetic loop antenna construction, with analysis of multi-turn and single-turn magneti loops, and and insight on choosing the optimal capacitor, or homebrewing your own butterfly capacitor
[ Hits: 1251 | Votes: 1 | Rating: 10 ]
- VU2NAN Nandu
- Homebrew Antennas, Transmitters, Receivers, Converters, Keyers and SWR/RF Current Indicators with photographs an excellent blog with many projects by VU2NAN
[ Hits: 273 | Votes: 2 | Rating: 9 ]
- IV3ONZ's Ham Radio Blog
- Ham radio activity and homebrew from Italy with some interesting article on QRSS, decoding interfaces, APRS and antennas
[ Hits: 200 | Votes: 2 | Rating: 10 ]
- Homebrew Digimode Interface
- A full galvanic isolation interface for digital modes tested with FT-847
[ Hits: 1053 | Votes: 0 | Rating: 0 ]
- A 600 Watt homebrew Solid State Amplifier
- A solid state linear based on EB104 Motorola Engineering Bulletin by Helge Granberg. It uses 4 MRF150 FETs in push-pull parallel to acheive 600 Watts from about 6 Watts drive
[ Hits: 1975 | Votes: 3 | Rating: 5.33 ]
- VHF FM Power Amplifier
- A 144MHz FM class C RF Power Amplifier based on a 2N6084 RF transistor, that can produce 50w output max
[ Hits: 517 | Votes: 2 | Rating: 4 ]
- Building A RF Dummy Load
- If your doing any home brewing gear for ham radio its a great idea to have a dummy load. This will to your radio be the perfect antenna...it will never radiate but your radio sees a perfect 50 Ohm impedance.
[ Hits: 1460 | Votes: 5 | Rating: 8.6 ]
- Homebrew dummy load
- A simple 50 ohm dummy load to test transmitters. includes a simple RF diode detector to measure the peak voltage, and calculate the power
[ Hits: 962 | Votes: 0 | Rating: 0 ]
- Homebrew a High Performance SSB RTX for 14 MHz
- This article describes the construction of a high performance transmitter and receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band with output range 15 to 20 watts and a top audio sound quality both on transmit and receive.
[ Hits: 345 | Votes: 5 | Rating: 7.8 ]
- Bluetooth and VOX Project
- A homebrew project about a bluetooth interface to connect a transceiver to an audio headset.
[ Hits: 320 | Votes: 0 | Rating: 0 ]
- CW Interface and Iambic Keyer
- An homebrew project for a cw interface and iambic keyer, includes a full schematic diagram, source code and pictures
[ Hits: 664 | Votes: 2 | Rating: 9 ]
- Homebrew Condenser Microphone
- A december 2003 QST article to Build a condenser microphone that will perform like the costly commercial units by KT4QW
[ Hits: 608 | Votes: 2 | Rating: 6.5 ]
- A Homebrew Antenna used for RFI Direction Finding
- How to homemade antenna to be used with a handheld on the aircraft band to locate noise sources
[ Hits: 484 | Votes: 3 | Rating: 7.67 ]
- LCD SWR Power Meters
- Two separate meters with SWR and Power Meter combined functiosn split a homebrew project by W2EB
[ Hits: 670 | Votes: 0 | Rating: 0 ]
- Apple MacBook interface for digital modes
- How to make a custom Line In connector for apple macbook or iMac to connect your amatur radio transceiver. A simple modification of a standard USB audio interface can work.
[ Hits: 135 | Votes: 0 | Rating: 0 ]
- Homebrew spectrum analyser
- A 50 MHz homemade RF spectrum analyzer
[ Hits: 575 | Votes: 1 | Rating: 8 ]
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