Antennes en dergelijke

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2:26
Twice a year smoke coming from your satellite dish?
By Chrix
  • 819 views
1:50
This antenna rotor uses an old office chair and an old wiper motor
By Chrix
  • 1K views
6:41
Antenna rotor from an old office chair, with deceleration/transmission
By Chrix
  • 432 views
9:54
Homemade 3 elements yagi for the 2 mtr. amateur band
By Chrix
  • 5.3K views
3:29
Tuning an HF antenna with an antenna tuner, Pi filter
By Chrix
  • 787 views
6:27
Quarter-wave HF antenna for portable use
By Chrix
  • 390 views
6:00
Simple tuner for a half wave (wire) antenna
By Chrix
  • 425 views
2:58
Homemade HB9CV antenna for the 2 mtr band: good performance for a very short boom
By Chrix
  • 2.3K views
5:33
Log Periodic Array: the wideband directive antenna containing of many fed dipoles
By Chrix
  • 392 views
6:26
Extend your actual antenna with an easy 6 meterband (50 MHz) dipole
By Chrix
  • 219 views
7:10
DIY J pole antenna for 50 Mhz (6 meter band), some theorie and how to built it in practise
By Chrix
  • 5.1K views
10:21
Return loss bridge, some theory, how I made mine and some demonstration
By Chrix
  • 1.2K views
9:55
Cheap and easy 5 elements 70 cm yagi antenna building considerations
By Chrix
  • 3K views
3:18
Yagi performance test with help of a WebSDR
By Chrix
  • 246 views
6:17
DIY simple X-yagi for 70 cm satellite design and construction considerations
By Chrix
  • 1.2K views
4:31
Easy DIY 10 el yagi for 70 cm band, use of a balun, design and construction considerations
By Chrix
  • 1.4K views
0:52
X-yagi on an experimental satellite tracking system for Low Orbit satellites with my cross yagi
By Chrix
  • 273 views
8:50
1: Bow-tie broad band antenna, web calculators and antenna simulation/scaling by MMANA-GAL
By Chrix
  • 4.7K views
6:41
2: Bow-tie antenna performance, built two versions and compared with a dipole
By Chrix
  • 1K views
8:01
(How) does an RF choke work, is it needed and how to make an effective one
By Chrix
  • 6.9K views
3:00
Inverted-V antenna, 50 Ohm, example for the 6 mtr band
By Chrix
  • 435 views
2:55
Small beacon as signal source for antenna or receiver tests
By Chrix
  • 191 views
9:11
Easy to adjust DIY Delta loop antenna for 50 MHz (6 meter band)
By Chrix
  • 14K views
11:04
Antenna radiation pattern: simple way of measurement and plotting
By Chrix
  • 1K views
4:31
A simple horizontally polarized quad antenna for 2 mtr that can easily be sticked out of the window
By Chrix
  • 456 views
7:21
Alford Slot, horizontally polarized omnidirectional antenna for 23/24 cm and 13 cm band
By Chrix
  • 285 views
6:43
13 cm slot waveguide antenna, as used on various ATV repeaters and beacons
By Chrix
  • 175 views
10:08
6 cm slot antenna, assembling with the receiver and video of field tests via PI6ATS
By Chrix
  • 327 views
4:30
Halo antenna for the 2 meter band, used with PI6ATV, later PI6ATS
By Chrix
  • 342 views
4:17
Box antenna, horizontally polarized round radiating antenna for 70 cm
By Chrix
  • 155 views
3:18
Doppelquad or biquad explanation and examples
By Chrix
  • 1.6K views
7:49
3: Bow tie antenna for reception of WCBS 608 MHz
By Chrix
  • 263 views
4:27
Construction ideas for an easy 70 cm band antenna (yagi) to stick out of the window
By Chrix
  • 196 views
10:15
DIY Lightweight Moxon wire antenna for the 2 meter band to stick out of the window
By Chrix
  • 731 views
6:47
DIY coaxial relay instead of buying a very expensive one
By Chrix
  • 1.1K views
7:08
DIY simple control circuits for a coaxial relay for HF, VHF or UHF
By Chrix
  • 812 views
4:50
Antennas for the 6 cm Amateur Television station
By Chrix
  • 340 views
5:47
Measure yourself the performance of your antenna, how about the DIY 5 elements Yagi
By Chrix
  • 228 views
3:38
Performance and radiation pattern of the 10 elements Yagi for the 70 cm band
By Chrix
  • 94 views
2:16
Moxon antenna performance measured in the two meter band
By Chrix
  • 239 views
3:23
DIY Indoor dipole/inverted-V antenna (example made for the 20 meter band)
By Chrix
  • 523 views
8:54
DIY Good functioning GPS antenna
By Chrix
  • 3.1K views
4:14
The often made mistake with comparing performance of HF antennas
By Chrix
  • 86 views
3:42
How bad is it if the dipole is not in the same plane as the other elements of the Yagi?
By Chrix
  • 125 views
11:39
DIY Horn Antenna as dishfeed for 24 GHz
By Chrix
  • 452 views
4:57
Self resonance of RF chokes, bad or helpful?
By Chrix
  • 241 views
11:04
Simple DIY HF or VHF antenna to hang in a tree or stick out of the window in a PVC tube
By Chrix
  • 8.9K views
7:49
How to build a horn antenna as a reference with known gain and some construction ideas
By Chrix
  • 923 views
5:59
Simple way to get gain from your wire or rod antenna by adding a simple wire
By Chrix
  • 378 views
7:31
Velocity factor for antenna materials measured in the 70 cm band
By Chrix
  • 393 views
6:59
How to increase the distance between PMR446 stations while the antenna is not detachable?
By Chrix
  • 535 views