rf design

198 links - and 2 categories

5 element Yagi antenna for 10 meters band - VE3VN
This 10 meter antenna is right out of the ARRL Antenna Book There are 5 ...

[ Hits: 194 | Votes: 2 | Rating: 6 ]

A Homebrew Yagi for 1296 MHz DX - DJ9YW
The author who works successfully via EME on this band wants to describe his own ...

[ Hits: 502 | Votes: 1 | Rating: 5 ]

Modeling the W6NL 40m Moxon - W8WWV
This note looks at the antenna and antenna model for the 40 meter Moxon Yagi ...

[ Hits: 2262 | Votes: 7 | Rating: 8.14 ]

PA0RDT MiniWhip - M1GEO
When experimenting with the WellGood Loop antenna I came across the PA0RDT MiniWhip design referenced ...

[ Hits: 208 | Votes: 0 | Rating: 0 ]

A Reversible Beverage at ZL3IX - ZL3IX
How do two wire reversible direction Beverages work an excellent document that explains fundamentals of ...

[ Hits: 524 | Votes: 0 | Rating: 0 ]

History of the Hexbeam Antennas - K4KIO
The original HEXBEAM was developed by Mike Traffic N1HXA in the early nineties It is ...

[ Hits: 130 | Votes: 2 | Rating: 7.5 ]
Spiderbeam VS Hex Beam - DJ0IP
Differences of Hex Beam and Spiderbeam antennas designs performance and measurements rotor considerations when using ...

[ Hits: 411 | Votes: 6 | Rating: 9.67 ]

20m Indoor Loop Antenna - SM0VPO
This antenna can gets you on the air on 14MHz and it has a useable ...

[ Hits: 670 | Votes: 4 | Rating: 6.75 ]

The Off-Center-Fed Dipole Antenna - Gary Rondeau
The OCFD Off Center Fed Dipole Antenna is an excellent multiband antenna that is relatively ...

[ Hits: 328 | Votes: 2 | Rating: 9 ]

The Classic Beverage Antenna Revisited - HH Beverage
This is a QST Article published in January 1982 by W1FB D Demaw and HH ...

[ Hits: 567 | Votes: 1 | Rating: 6 ]

VHF-UHF Long Boom Very High Performance Antenna Designs - W8IO
Experimental Long Boom Antennas CP LPDA multiband with several NEC Files for 50MHz 144MHz 222 ...

[ Hits: 190 | Votes: 1 | Rating: 10 ]
Modifications to the Diamond V2000 and similar antennas - EA4EOZ
This kind of antenna has grown in popularity over the last years because it gives ...

[ Hits: 631 | Votes: 2 | Rating: 9.5 ]

ADALM-PLUTO SDR - Analog Devices
The Adalm Pluto by Analog Devices is a Portable self contained RF learning module based ...

[ Hits: 164 | Votes: 2 | Rating: 10 ]

XieGu Tech - XieGu
XieGu Tech manufactures quality amateur radio transceivers and amplifiers designed by BG8HT Xiegu focus is ...

[ Hits: 347 | Votes: 0 | Rating: 0 ]

LogiSim - Logic Circuit Simulator - cburch
Logisim is an educational tool for designing and simulating digital logic circuits With its simple ...

[ Hits: 128 | Votes: 0 | Rating: 0 ]
DesignSpark - RS Online - RS Online
DesignSpark PCB is a free PCB design tool by rs online designed to help the ...

[ Hits: 71 | Votes: 0 | Rating: 0 ]
Fritzing - Fritzing
Fritzing is for amateur circuit designers enthusiasts and hobbyists to build their own design and ...

[ Hits: 128 | Votes: 1 | Rating: 9 ]

LogHX freeware logger software - RX4HX
LogHX is a freeware windows ham radio logger software designed as complete Ham Radio environment ...

[ Hits: 736 | Votes: 4 | Rating: 9.5 ]

RF Impedance Matching Calculator - Analog Devices
Calculates the network to match a line to a specific complex load This online tool ...

[ Hits: 195 | Votes: 1 | Rating: 10 ]

435 plus 1296MHz ATF54143 Pre-amplifier - G0MRF
The prototype for this amplifier was originally designed for 70cm and was used on the ...

[ Hits: 336 | Votes: 0 | Rating: 0 ]