design

1027 links - and 6 categories

Vertical half-wave aerials for 4m ^updated - Practical designs pictures and alternative design of antennas for 70 Mhz by Ross Wilkinson G0WJR
[ Hits: 8426 | Votes: 17 | Rating: 4.88 ]

Notes on building Yagis for 50 Mhz - Construction Details for 50MHz-Yagis in DK7ZB-Design
[ Hits: 1884 | Votes: 4 | Rating: 5.75 ]
WB7PMP 4 and 7 elements yagi for 50 Mhz - Original drawing and design of a 4 and 7 elements yagi antenna for 50 Mhz
[ Hits: 1615 | Votes: 6 | Rating: 4.83 ]

70cm Longyagis - 70cm-Longyagis in 28Ohm-DK7ZB-Design
[ Hits: 2533 | Votes: 3 | Rating: 7 ]

Shortened Center-Fed Half-Wave Dipole - Design your owm HF shiortened dipole. Includes a diagram of a lumped-constant loaded dipole antenna that is intended to fit in available space, rather than requiring a full 1/2 wavelength, at a specified frequency
[ Hits: 2879 | Votes: 6 | Rating: 9.83 ]

W4JOH Cobra Antenna - The original Cobra antenna, is a multiband 160 or 80 to 10 meter, designed by W4JOH is built using standard insulated wire of about 14 gauge and fed with 450 ohm ladder line down to the shack into a tuner.
[ Hits: 1710 | Votes: 1 | Rating: 10 ]

Receiving Antenna Design - Learn basic theory on antennas, and notes on homebrewing efficient shortwave antennas
[ Hits: 3200 | Votes: 2 | Rating: 9 ]

KC1XX Contest Station - Amateur Radio Station owned by Matt Strelow. The station is designed for competition in the multi-operator multi-transmitter category of high-frequency DX contests. Running with 7 towers 6 rotators, 8 beverage listening antennas, and 4 spotting verticals
[ Hits: 1763 | Votes: 2 | Rating: 6.5 ]

Amplitec linear amplifiers - HF VHF UHF amplifiers, designed by hams for hams, and morse keys manufacturer
[ Hits: 9129 | Votes: 11 | Rating: 4.27 ]

RF HAMDESIGN - An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.
[ Hits: 1616 | Votes: 5 | Rating: 9 ]

Motron - DTMF Electronics Manufacturer offers Decoding, Display, Signalling, Data Logging, Remote Monitoring and Control products and design.
[ Hits: 590 | Votes: 1 | Rating: 10 ]

Tesla and Radio - Nikola Tesla created a basic design for radio
[ Hits: 277 | Votes: 0 | Rating: 0 ]

PI-EL - The Windows program for designing and analyzing PI and PI-L networks by Tonne Software
[ Hits: 887 | Votes: 1 | Rating: 10 ]

Elsie - Filter Design - Filter design software. Elsie is an uncommon commercial-grade lumped-element ("L-C") electrical filter design and network analysis program, directed toward the engineer or technician involved in that line of work.
[ Hits: 2956 | Votes: 7 | Rating: 8.71 ]
SVC Filter - Filter design software. A program designed to expedite the design and analysis of lowpass (and highpass) filters with nearest 5% component values. SVCfilter is 32-bit Windows electrical filter design software nicely written to help the radio amateur, technician or engineer design and analyze lumped-element lowpass and highpass filters.
[ Hits: 1192 | Votes: 1 | Rating: 10 ]
Meter - This meter scale drawing program is designed to have a computer do the hard work in making a precision scale for a d'Arsonval analog meter. The resulting scales will typically be nicer-looking than those found on many commercial meters.
[ Hits: 4229 | Votes: 5 | Rating: 6.6 ]
Quad - from Tonne Software - This graphics-intensive program designs and analyzes active quadrature ("90-degree") networks for use in SSB transmitters and receivers.
[ Hits: 883 | Votes: 1 | Rating: 10 ]

WINRAD by I2PHD - Winrad is a free software program designed to implement a Software Defined Radio (SDR), meant to run under Windows XP, Windows 2000, or Windows 98SE. In a nutshell, it accepts a chunk of up to 96 kHz coming from a complex mixer in form of two signals, I and Q, fed to the PC sound card.
[ Hits: 20151 | Votes: 31 | Rating: 5.67 ]

Diplexer - This program expedites the design of lumped-element diplexers using both the lowpass/highpass and the bandpass/bandstop topologies.
[ Hits: 1497 | Votes: 5 | Rating: 4.6 ]
Class E - This program simplifies the design of the single-ended Class E amplifier. Operation is intuitive and encourages "tuning" and exploration.
[ Hits: 955 | Votes: 3 | Rating: 6 ]