m tech

828 links - and 5 categories

A Six element yagi antenna for the 50 MHz - Christoph petermann's df9cy six element yagi antenna for six meter band
[ Hits: 1773 | Votes: 4 | Rating: 8 ]

A Full Wave Loop for 80 - 10 Metres - VE3HCR article of a home made loop antenna for 80 meters band
[ Hits: 4477 | Votes: 2 | Rating: 6 ]

Remote Control Antenna Switch - The Remote Control Antenna Switch consists of two circuit boards. The control unit and the remotely controlled switch
[ Hits: 1150 | Votes: 0 | Rating: 0 ]
The Ultimate transmatch - Usage and benefits of transmatch. A pdf document from a QST article made available for novices and beginners by ARRL
[ Hits: 16641 | Votes: 11 | Rating: 5.64 ]
Better Feedline Loss Measurements with Antenna Analyzers - Various publications through the years have shown how the SWR measured on a shorted (or open) feed line can be used to calculate feed line attenuation
[ Hits: 1921 | Votes: 2 | Rating: 10 ]
Let's talk transmission lines - Don't neglect one of the most important parts of your station!
[ Hits: 1057 | Votes: 3 | Rating: 9 ]

Use of tripods to assemble and balance big antennas - Here is a way to ease assembly and balancing of a large antenna. The elements and boom are assembled separately in most cases. Once they are all together set up 2 tripods in the assembly area and put the boom on them.
[ Hits: 2160 | Votes: 1 | Rating: 10 ]

Antenna Gain on Trial - Most people think it's a good thing to have and the more the better. However, this is not always true - and the amount of gain is often not what it appears to be. Assuming higher gain is what you need, how do you determine what will give the best performance?
[ Hits: 972 | Votes: 2 | Rating: 5.5 ]

Getting the most from your tuner - Here is how to adjust this popular tuner circuit so it transfers maximum power to your antenna without going snap
[ Hits: 2826 | Votes: 3 | Rating: 6.33 ]

Stacking Yagi Antennas - About Stacking yagi antennas by OH1ZAA
[ Hits: 3782 | Votes: 25 | Rating: 5.08 ]

On Line Ham Radio Class - Ham Radio Class On-Line. A complete On-Line Course for the Technician, General or Extra Class amateur radio license.
[ Hits: 1424 | Votes: 2 | Rating: 5.5 ]

LNA Technology - LNA Technology High Performance Low Noise Preamplifiers for Amateur Radio, VHF-UHF weak signal, DX, EME, and commercial applications.
[ Hits: 2194 | Votes: 4 | Rating: 7 ]

GIGAVAC Ham Radio Relays - Gigavac is a leading designer, manufacturer, and worldwide seller of contactors and high voltage relays using vacuum, gas filled, and high voltage reed relay technology. hv relay applications information with cross reference charts for kilovac / tyco, jennings, and crydom part numbers.
[ Hits: 569 | Votes: 3 | Rating: 4 ]

UIDIGI TNC2 firmware mailing list - promote exchange of technical infomation and help with the setup and operation of the UIDIGI firmware.
[ Hits: 681 | Votes: 2 | Rating: 10 ]

2 Meters Bicycle Antenna ^pop - 2 Meter Antenna for Bicycle Mobile Operation
[ Hits: 41397 | Votes: 33 | Rating: 3.76 ]

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: 2955 | 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 ]

EggsHam - EggsHam is a PalmOS application that generates (and grades) _practice_ amateur radio licensing exams. It is for people interested in obtaining an amateur radio license in the US, who want to practice for the Technician, General, or Extra written exam.
[ Hits: 1002 | Votes: 4 | Rating: 9.75 ]

Soundcard Audio Tools and Toys - Soundcard audio tools and toys, experimental ideas and utilities. Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser
[ Hits: 14612 | Votes: 16 | Rating: 7.75 ]