pa0nhc project pages for licensed radio amateurs and sound recording.
PA0NHC was born in march 29 1939 and VHF licensed in 1965. Full licensed in 1980. QTH: De Meern, in the center of The Netherlands, GPS 52.084849, 5.013264.
(C) The use, copy and modification of all info on this site is only permitted for non-commercial purposes,
and thereby explicitly mentioning my radio amateur call sign "PA0NHC" as the original writer / designer / photographer /publisher.

To promote hobbyists rebuilding my projects, i offer
Professional double sided PCBs incl. solder masks and screens.
When you order one, consider yourself participating in a kind of crowd funding.


Antenna VSWR sweeper V2  
fast and easy display of the VSWR graph of antennas, filters and cables.
  
Magnetic Near Field Indicator
Tune your magnetic loop antenna for best radiation
 
"Miniwhip" active wideband receiving antenna
Ip3 = +45 dBm

Transformer matching PCB for a 10m circumference magnetic loop antenna
for perfect matching at 40m and 80m.

20171020
NEW =>
RF rms power meter
0.5 mW- 200 W 
 -3 to +53 dBm. Adjustment-free.

NEW => RF rms low power meter 1 uW - 4 mW 
-30 dBm to +6 dBm.  Adjustment-free.

 NEW => Noiseless power supply 12 Vdc / 130 mA 
for RFnoise-critical electronics (like Miniwhip).

20171029

NEW => ARDFrx80 : Advanced design for a 80m ARDF receiver.

20171112
 NEW => ARDFRX2m Advanced design for a 2m ARDF receiver. 

Go to RF  1.8-30MHz short wave.
Go to

VHF  144 MHz and 435 MHz.

Go to AUDIO  High Quality microphone electronics.  Classical music recording.
Go to Misc. / Div.   Hoe PCBs maken.   BAD or GOOD capacitor types?   Lightning damage.   And more . . .
How to Working installation of old software under Windows10.


2nd operator "Sokkie" (Socks)
I understand and like cats.