YO4HFU
Best links

LINK  EXCHANGE
Ovidiu, YO6PIR
PIC & NETDUINO (Micu Adrian)
Circuite electronice, scheme si montaje pentru electronisti
Reparatii si constructii - Tudor George

DIY  PROJECTS
http://ok1uga.nagano.cz/
144MHz Transverter, GPS oscillator, SPANFI
http://f1bzg.pagesperso-orange.fr/transverters_f1jgp.htm
Transverters HF/VHF/UHF
http://www.f6evt.fr/index.html Excellent
http://www.qrz.lt/ly2bok/Konstrukcijos/Konstr%20turinys.html Excellent
http://home.snafu.de/graff/swr.html SWR-meter
http://ok1dx.dyndns.org/constructions/swrmega/swrmega.html SWRmeter
http://sharon.esrac.ele.tue.nl/~on9cvd/E_index.html
http://www.iz4beh.net/progetti.htm VHF
http://www.qsl.net/om3cph/om3cph.htmgood projects!
http://lea.hamradio.si/~s53rm/JAVORNIK%20144.htm transverter 144/14
http://www.agder.net/la8ak/index1.htm
http://www.qsl.net/yu1aw/ QRO tubes
http://www.xs4all.nl/~pa0fri/
http://www.ik3oil.it/project_eng.htm FLL,SWR
http://yu1lm.qrpradio.com/-SDR
http://lea.hamradio.si/~s53mv/index.html
http://www.qsl.net/ok2pid/PA145/pa145.html
PA russia
http://pa3csg.hoeplakee.nl/joomla/ QRO tube,EME
http://www.webalice.it/alberto.stoppelli/ham/ SHF PLL
http://goto.glocalnet.net/SM6WHY/ HP SA Tracking
http://lea.hamradio.si/~s53mv/spectana/tg.html 1.5GHz tracking
http://www.qrz.lt/ly2bok/Konstrukcijos/Konstr%20turinys.htm excellent-atmega SD recorder
http://www.rfcandy.biz/communication/vcotest.html VCO Tester
http://www.webalice.it/hotwater/GPSclock.htm GPS Reference PLL
http://www.vhfdx.ru/files/ Rusian Files Collection, Translate with Google
http://eu1cc.qrz.ru/sintez/sintez.htm DDS-PLL with AD9850/1
http://www.stefanv.com/electronics/battman2.html Battery manager
http://www.ifwtech.co.uk/g3sek/ Triode/Tetrode Board
http://www.pe1rqm.nl/projecten_pe1fod.php GPS 10MHZ...other
http://ra3rbe.r3r.ru/ -PLL LMX, Sequencer...
http://hrvhf.net/forum/index.php?board=30.0 -UKW Forum Croatia
http://www.ok2ukg.com/?cat=15 SHF Projects
http://www.df9ic.de/doc/doc_chrono.htm Papers RF
http://om6bb.bab.sk/index.php?option=com_content&view=category&id=34&Itemid=62 QRO VHF + Other RF
http://www.ok2kkw.com/00003016/wattmetr/wattmeter_3_cz.htm PEP Wattmeter
http://www.muzique.com/lab/gyrator.htm Gyrator Circuit Calculator
http://triodeel.com/tester.htm Tube Tester

THEORY, SOFTWARE
http://www.qsl.net/yo3dmu/index_Page346.htm - PstRotator
http://www.g3tct.co.uk/dual_mosfet_pa.html - mimp.exe _ motorola matching
http://www.g3tct.co.uk/files/mimp.zip - mimp.exe _ motorola matching
http://www.fourier-series.com/rf-concepts/smithchart.html -Smith Chart Tutorial
http://www.changpuak.ch/electronics/wilkinson_power_split_2.php -Wilkinson calculator
http://www.bibel-reflektion.de/html/circuits_and_components.html#koppler2 power dividers/combiners
http://www.planker.dk/Projects/6meter/9_mhz_diplexer.htm diplexer RFSim99
http://www.radioadapter.josefscholz.de/ car audio-pinout

ANTENNA
http://oz1djj.geronne.dk/yu7ef%20duo6elm_7elm.htm
- Yagi 6/4m Boom=6m
http://oz1djj.geronne.dk/yu7ef%20duo.htm
- Yagi 6/4m Boom=4m
http://www.yu7ef.com/ Low Noise Yagi
http://dg7ybn.de/ Boom Correction, Stacking, Baluns, Phasing...
http://www.gm4jjj.co.uk/eme.html
phasing lines and others
http://www.qsl.net/dk7zb/start1.htm (yagi)
http://f3wm.free.fr/index.html (slim jim)
http://www.hamuniverse.com/slimjim.html
(slim jim)
http://www.radioklub.org/index.php?option=com_rubberdoc&view=doc&id=60&format=raw (dipole array)
http://www.hamradioindia.org/circuits/radiation_pattern.php (radiation pattern)

VHF Antenna - Photo

RF  CONNECTORS
http://www.wa1mba.org/rfconn.htm
http://please.name.my/96/differences-between-pl-259-so-239-and-uhf-connector.html
http://www.amphenolrf.com/products/typen.asp?N=0&sid=4B0C73805353617F&

PROPAGATION  FORECAST
http://dx.qsl.net/propagation/greyline.html (line day-night)
http://www.astrosurf.org/luxorion/menu-qsl.htm
http://www.mmmonvhf.de/ VHF INFO
http://www.dl1dbc.net/Meteorscatter/ (MS)-not working
http://www.jt6m.org/mscal.php MS Calendar
http://www.jt6m.org/ms-procedure.php MS Procedure
http://www.dxmaps.com/emecalendar.html EME 2014 Calendar
http://www.on4kst.com/chat/start.php CHAT HF/VHF/UHF
http://www.chris.org/cgi-bin/jt65emeA EME Chat N0UK
EME N0UK chat inteface(russian)
http://home.hccnet.nl/uffe.noucha/ Radar
http://www.idokep.ro/?oldal=legnyomasterkep WX Europe
http://www.rudius.net/dxp/index.php?id=464 DX Expeditions
http://www.emsc-csem.org/Earthquake/Map/ Earthquake

 

...under construction, last Update 29.10.2016

 

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