ANTENNA PROJECTS ![](pix/info.gif) |
VHF Dipole |
How to build VHF dipoles ..with Gamma Match |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
VHF Collinear with 2 dipoles |
Tips & construction infos ...two dipoles, 5.1 dBi Gain |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
3 Elements VHF Yagi |
Small VHF Yagi for general use, 8.17 dBi Gain |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
6 Elements VHF Yagi |
Super-duper/small VHF Yagi ..with sharp curve but excellent Gain (11.85 dBi) |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
10 Elements UHF Yagi |
Small UHF Yagi for SAT & Ground stations, 13.5 dBi Gain |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
Short Dipole |
Dual-Band HF Antenna (by SV1XY) 40m "plus" 10m Band |
![](tools/yellow127px.gif) ![](tools/engl_lan.gif) ![](tools/yellow127px.gif) |
Windom Antenna |
Homebrew "Off-center" HF Multiband Antenna |
![](tools/yellow127px.gif) ![](tools/engl_lan.gif) ![](tools/yellow127px.gif) |
L-P-T Antenna Tuner |
"One-box", triple-type HF Antenna Tuner |
![](tools/yellow127px.gif) ![](tools/engl_lan.gif) ![](tools/yellow127px.gif) |
Antenna Box |
HF Antenna Distribution box ..one Coaxial-feeder for 3 antennas |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
VHF-UHF PROJECTS ![](pix/info.gif) |
UHF LNA |
Low Noise Antenna pre-amp ..with GasFet & NF 0.5 dB |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
VHF Antenna pre-amp | Excellent Antenna pre-amp ...with BF981 Dual-gate MosFet |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
VHF Module Power Amplifier | 0-20 Watts on VHF ...just by using a chip ! |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
UHF Dummy-Load | Homebrew Dummy for UHF |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
Hi-pass Filter for VHF-UHF
|
...prevents the 88-108 MHZ Broadcast Interferences |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
5 Watts VHF PA | QRP cheap PA for CW-SSB |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
25 Watts VHF PA | BLY89 RF-Power stage Spec's from PHILIPS DataBook |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |
144 to 28 MHz Down Converter | ..useful as 2nd converter from S-band D/Cs to HF-Rx |
![](tools/engl_lan.gif) ![](tools/yellow127px.gif)
![](tools/greek_lan.gif) |