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107 links

7 Elements YAGI for 144 Mhz ^pop
The QM7 antenna is a simple 7 elements Yagi with 3 7 m boom length ...

[ Hits: 42755 | Votes: 49 | Rating: 5.87 ]
QM5 Yagi for 2 meters band - I0QM
The QM5 antenna is a simple 5 elements Yagi with 1 88 m boom length ...

[ Hits: 6872 | Votes: 4 | Rating: 5.25 ]
QM7 7 elements 144 MHz Yagi-Uda Antenna
The QM7 antenna is a simple 7 elements Yagi with 3 70 m boom length ...

[ Hits: 5361 | Votes: 15 | Rating: 5.27 ]
Portable Yagi for 144MHz - EI9GQ
Simple 7 element Yagi is ideal for portable operation The elements can be removed and ...

[ Hits: 14336 | Votes: 35 | Rating: 6.83 ]

Bazooka dipole for 70 cm band
Here is a very simple 70cms dipole from Harald PD2HFE which uses a single piece ...

[ Hits: 16575 | Votes: 30 | Rating: 6.67 ]

The 9:1 balun ^pop
Homemade 9:1 antenna balun simple project

[ Hits: 33343 | Votes: 36 | Rating: 6.16 ]

Cheap antenna to make from 160m - 6m - G0FTD ^pop
The antenna is nothing more than a simple 2 4 metre square loop drawing pinned ...

[ Hits: 46519 | Votes: 28 | Rating: 7.61 ]

DK7ZB 144 mhz Yagis
High gain good pattern and acceptable bandwidth These aims can be realized with a radiation ...

[ Hits: 1909 | Votes: 7 | Rating: 6.86 ]

Antenna for deed restricted lots - K7ZB ^pop
An effective 10 20m DX antenna for deed restricted lots The article by K7ZB introduces ...

[ Hits: 56300 | Votes: 13 | Rating: 6.46 ]

WLAN antenna 2.4 GHz Do-It-Yourself ^pop
A simple homebrew outdoor antenna to 2.4 GHz band.

[ Hits: 138764 | Votes: 186 | Rating: 5.52 ]
A Tincan feed for 2.45Ghz
Construction details for a simple but effective antenna for 2.45Ghz wireless lan use.

[ Hits: 6862 | Votes: 9 | Rating: 5.56 ]
43.33 Km LOS with USB WiFi stick ^pop
Simple USB 802 11b WiFi adapter with original antenna used for this 27 miles long ...

[ Hits: 51135 | Votes: 103 | Rating: 5.64 ]

NorCal Doublet Antenna
A simple antenna that can be erected very fast only need one center support and ...

[ Hits: 2813 | Votes: 3 | Rating: 10 ]

30m QRSS Junkbox Beacon
This simple 30m QRSS beacon is built entirely out of junkbox parts the only component ...

[ Hits: 2253 | Votes: 1 | Rating: 7 ]

K4TR Antennas
K4TR Manufacture and sell simple dipoles half square 2 wire phased vertical arrays end fed ...

[ Hits: 4430 | Votes: 8 | Rating: 7.88 ]

Spectrum Lab ^pop
DL4YHF s Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program ...

[ Hits: 47784 | Votes: 56 | Rating: 6.97 ]

TrueTTY - Sergei Podstrigailo
Program for amateur radio digital communications via a sound card Supported modes are RTTY Baudot ...

[ Hits: 18291 | Votes: 855 | Rating: 7.35 ]

YG-PSK - Jeff Steinkamp
Simple PSK31 and RTTY program based on the AE4JY PSK engine Logging inlcudes 10 10 ...

[ Hits: 2956 | Votes: 4 | Rating: 8 ]

Simple Reverse Polarity Protection
This simple modification is applicable to pretty much any 12 volt operated positive earth equipment ...

[ Hits: 1648 | Votes: 0 | Rating: 0 ]

A low pass filter circuit
A simple 7 element Chebyshev low pass filter rolls of at 30MHz Attenuation is better ...

[ Hits: 5304 | Votes: 21 | Rating: 6.1 ]