http://www.martindalecenter.com/Calculators1A_3_HamAc.html
http://www.ham-radio.nl/cursus/cursus.html
http://www.mods-ham.com/21_Rund%20um%20die%20Antenne/Amateurfunk-Antennen/Antennenimpedanz/Zusammenschaltung_Frame.html
http://www.dxzone.com/catalog/Technical_Reference/Software_Defined_Radio/
http://www.hamradio-friedrichshafen.de/
http://www.radioreference.com/apps/audio/?stid=223
(ref017a )
http://www.on7kei.be/2012/
http://m04.darc-husum.de/pegelmesser.html
(pegelmesser)
http://www.calculatoredge.com/#electronics
(calculator)
http://www.microwaves101.com/encyclopedia/calvswr.cfm
http://www.qsl.net/va3iul/
(rf basics)
http://tonnesoftware.com/
(hamsoft)
smithdiagram (Volker Lotze)
qrzcq
morse
fritzing
TUNER calculater
Spoel calculator
ham on9cvd
UP4DAR (DSTAR)
DCS-dtmf
HAM
dcs007
dstar - dcs007 luisteren
antennetuner
Streaming-dstar
Dstar- limburg
cw / am zender el84
DCS007
Hamstuff
smithdiagramma-swr
raspberrypi-ham
ANTENNEN HB9ACC
ON6LL La Louviere
eQSO
dxcluster
impedantie aanpassing
impedantie aanpassing 2
G8MNY technische info
on6fv
haminfo
Maxwellstichting-Eindhoven
radioamateur-news
diverse
schema's
berekeningen-ham
pa3ang-sdr dstar
manuals
Allerhande berekeningen
java-script collection
uba.be
http://www.m0ukd.com/
antenne
f5zv.RADIO
on4aa
ham
m0ukd
darc-husum
bookmarkee