basic
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Antennas : 160M- Your First 160-Meter Antenna
- Notes on building a basic wire vertical or horizontal antenna for 160 meters band by L. B. Cebik, W4RNL
[ Hits: 6073 | Votes: 3 | Rating: 1 ]
- CobWeb multiband folded dipole
- The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies.
[ Hits: 8620 | Votes: 0 | Rating: 0 ]
- Comparator-based RF switch
- This is a concept paper, not a constuction article. There are too many variables to propose a one size fits all design. However, this paper should give you the basic idea how to do it
[ Hits: 779 | Votes: 1 | Rating: 5 ]
- Folded dipole antenna basics
- Basic information on the folded dipole antenna
[ Hits: 1630 | Votes: 2 | Rating: 4 ]
- The HB9CV antenna
- Basics and principles of the HB9CV antenna by Rudolf Baumgartner. This antenna join electric advantages of the two elements direct feeded aerials with the mechanical advantages of the Yagi antennas, in French.
[ Hits: 5850 | Votes: 13 | Rating: 7 ]
- Axial-Mode Helical Antennas
- Notes on Axial-Mode Helical Antennas in Amateur Service. Helix Basics, Modeling Issues, and Short Helical Antennas Over Perfect Ground
[ Hits: 1651 | Votes: 0 | Rating: 0 ]
- The G3BGR Magnetic Loop
- This ia a home built Magnetic loop antenna which was used by G3BGR, indoors on 7,10 and 14Mhz. The basic idea was in Radcom 1986
[ Hits: 1371 | Votes: 0 | Rating: 0 ]
- Verticals. Ground systems and some history
- Article gives a good overview of the basics and reflects the accepted wisdom from BC antenna work.
[ Hits: 1623 | Votes: 1 | Rating: 10 ]
- Loop Antenna Basics
- Loop Antenna Basics and Regulatory Compliance for Short-Range Radio
[ Hits: 847 | Votes: 0 | Rating: 0 ]
- Understanding Antennas For The Non-Technical Ham
- A Book By Jim Abercrombie, N4JA.
Reason for writing this book is to educate you so you can make an informed choice concerning the
best antenna for you. Another reason is to dispel the many antenna myths that circulate in the amateur
communit
[ Hits: 1542 | Votes: 3 | Rating: 6.67 ]
- The EZ-Tuner
- The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.
[ Hits: 5567 | Votes: 1 | Rating: 9 ]
- RF Circuit design basics
- Ebook by Akira Matsuzawa Tokyo Institute of Technology, Building blocks in RF system and basic performances, Device characteristics in RF application , Low noise amplifier design, Mixer design and Oscillator design
[ Hits: 1271 | Votes: 1 | Rating: 1 ]
- A basic CW operating manual
- Compiled by Dan Stegner KC0OBU from FISTS CW Club member tips, amateur radio morse code procedures
[ Hits: 3405 | Votes: 5 | Rating: 5.6 ]
- PSK31 Overview
- Brief overview of PSK31 and basic operating techniques.
[ Hits: 702 | Votes: 0 | Rating: 0 ]
- ICOM OCX
- CI-V OCX For The Icom 756Pro allow you to interface your own application or visual basic, excel, word or similar custom applications to your icom radio.
[ Hits: 1571 | Votes: 5 | Rating: 10 ]
- Free Sun Power
- Free basic and advanced system design tutorials for every component and aspect of solar power. Plus system sizing calculators, battery bank calculators and wire size calculators
[ Hits: 938 | Votes: 2 | Rating: 6 ]
- A 20W Amplifier for 2 meters
- VU2RAR basic VHF power amplifier suitable for 144-146 Mhz output power can vary from 3 to 25 Watts.
[ Hits: 3039 | Votes: 5 | Rating: 6.6 ]
- NiCad battery charger
- A basic nicad battery charger using a single medium power transistor.
[ Hits: 334 | Votes: 0 | Rating: 0 ]
- 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: 9478 | Votes: 7 | Rating: 6.85 ]
- TVi Basics - making filters
- TV Interference filters, making TVI filters, coaxial filters to eliminate TV interferences caused by radio frequency
[ Hits: 1027 | Votes: 0 | Rating: 0 ]
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