PA0NHC Main Index. 20210803
Some pages will be updated in the future, therefore : 

1. Never use (outdated) external links to my articles  !!
2. Always START HERE at  www.pa0nhc.nl and

3.  ==>> On every new page FIRST PRESS F5 <<==

Then you are sure to get the most recent updated page and information.

NEW article : Small VHF 145MHz omni directional horizontal polarized loop antenna.

The main menu to all articles on this site (mostly in English language) :
PA0NHC : Born march 29 1939 in Schiedam The Netherlands. VHF license technical exam in 1965. Full license CW exam in 1980.
  QTH : De Meern (Utrecht) in the center of The Netherlands. GPS 52.084849, 5.013264   This site now exist for 25 years (.com /.net /.nl)  
Page update  20210606 .
(20210606 : YouTube links corrected). 12 links to my Youtube video presentations :

pa0nhc 40/60/80m 400W transmitting loop. 
Super wide band transformer matching.

Nederlands

English

De-noising of Linear Power Supplies. 
The differences
between LPS and SMPS.

Nederlands
English

The sense and the NONsense about
magnetic transmitting loop antennas.

English

pa0nhc X-phase noise killer for one (plasma) noise source.
YouTube demo video.

English

=> The truth about <=
The similitudes and important  differences between all Miniwhip (E-field) antennas and my 
improved, balanced and screened
receiving loop (H-field) antenna.
INCLUDING :
The all important installation
and
de-noising

Nederlands

English

Common Mode Chokes.

De geheimen onthuld van
mantelstoom smoorspoelen

en 

De invloed van temperatuur veranderingen in Common Mode Chokes.

(Naar info van K9YC).

Nederlands
Deel1
Theorie 30min.

Deel2
Praktijk
19min.

Deel3
Voorbeelden
7min.

Pa0nhc active wideband H-field fully balanced receiving loop
15 kHz - 30 MHz. 
NO antenna grounding!

Nederlands

English

De-noising of 
Switched Mode Power Supplies.

Nederlands

English

Pa0nhc 80m-20m 
Symmetrical coaxial dipole antenna
with coaxial END feed. 
BETTER than an end-fed-wire antenna !
No TVI / BCI ! Low noise lvel.

2021 :
New better CMC.

Nederlands

English

Pa0nhc improved version of the MINIWHIP active E-field antenna.
Installation and de-noising instructions for all active E-field antennas.

Nederlands

English


 1st operator Nico pa0nhc..


Second operator "Sokkie" (socks).

26 june 2021 we had to lead her into eternal sleep. She was a friendly, dedicated and vocally responding mate.
Rest in piece.