20m

156 links - and 1 categories

A Horizontal loop for 80 meter dx - VE2CV
This 80 meter quad loop system requires only supports of modest height a better single ...

[ Hits: 6567 | Votes: 4 | Rating: 5.5 ]

20m mini loaded dipole
It is very simple to build and you can tune it in your shack room ...

[ Hits: 16243 | Votes: 17 | Rating: 6 ]
20m QRP Dipole
Instructions to build a portable dipole for 20 meters

[ Hits: 16724 | Votes: 6 | Rating: 9.17 ]
40 meter shortened dipole - M0MCX
Interesting little project with a couple of loading coils by M0MCX

[ Hits: 14309 | Votes: 11 | Rating: 6.55 ]
Buddipole by ZR6KMD
A rotateable dipole specifically for the 20m based on W3FF Buddipole design by ZR6KMD ...

[ Hits: 2565 | Votes: 0 | Rating: 0 ]

J-Pole for 14MHz
20 meter wire j pole for 14 2 MHz a vertical end fed half wave ...

[ Hits: 5243 | Votes: 4 | Rating: 6.25 ]

Antenne Maria Maluca - ON4RCC
An antenna originally planned in the sixties a two element beam antenna tunable on several ...

[ Hits: 1883 | Votes: 2 | Rating: 4.5 ]

Dualband 17m/20m Moxon - N3OX
A Moxon rectangle antenna for 17 and 20 meters band

[ Hits: 4014 | Votes: 1 | Rating: 4 ]

2-Element-DK7ZB-Quad for 5 Bands
10-12-15-17-20m A description was in the German Ham-Magazine "Funkamateur" in Issue 11/2003

[ Hits: 14913 | Votes: 14 | Rating: 5.79 ]
Vertical antenna for Vacation
Vertical Vacation Antenna for 80 40 and 20 Meter Band by Herbert OE3BMB This antenna ...

[ Hits: 5038 | Votes: 4 | Rating: 8 ]
ON3JT vertical multiband hf antenna - Jean Klein
A simple and low cost multiband vertical hf antenna covering 5 bands 20m 10m from ...

[ Hits: 4153 | Votes: 2 | Rating: 6.5 ]

QRP 20m Antenna Tuner Unit
A QRP antenna tuner for 20 meters band

[ Hits: 10844 | Votes: 6 | Rating: 5.83 ]

Wire-Beam
Wire beam antenna for the bands 6m, 10m, 12m, 15m, 17m and 20m

[ Hits: 2036 | Votes: 2 | Rating: 9.5 ]

I2YSB QSL Manager - I2YSB
I2YSB MANAGER of 5U1A 5U2K 5U3T 5U4R 5U5A 5U6W 5U7B 5U7DW 5U7JK 5U7JW 5U7RW 5U8B ...

[ Hits: 417 | Votes: 2 | Rating: 5.5 ]

WebSDR on 20m, 40m and 80m - Twente University ^pop
On this page you can listen to and control a short wave receiver located at ...

[ Hits: 45752 | Votes: 523 | Rating: 7.25 ]

A basic CW operating manual
Compiled by Dan Stegner KC0OBU from FISTS CW Club member tips amateur radio morse code ...

[ Hits: 3411 | Votes: 5 | Rating: 5.6 ]

A 20m monoband Power Amp
The 20m monoband 4-1000 amplifier, by Jelmer (pa5r), Herman (pa0ten) and Frans (pa5ca)

[ Hits: 2892 | Votes: 2 | Rating: 9.5 ]

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 ]