YO4HHP's blog
Latest Post
Portable in Bucovina
A few weeks ago I went out for a small holiday in the Bucovina region, Northern Romania. It was the first opportunity to do portable operation this year, so I took with me some of my equipment, hoping for some nice weather to use my toys. Well, the results were modest. First days was raining … Continue reading
FEATURED POSTS
A few weeks ago, just before New Year, my ship had a port call in Mangalore, India, to load some oil cargo. Even all the operations took around 24 hours, I managed to went ashore in the afternoon for a little souvenir shopping and photo shooting. Good to feel the land after 10 days voyage from … Continue reading
Looking for a easy to build RF generator to test and adjust my home made HF transceiver I found this nice project from www.vintage-radio.com. The device is very basic but suits my needs to test the band pass filters and the receiving unit of my rig. It has also a built-in AM modulator with an … Continue reading
A very useful device and easy to build is this frequency meter/digital scale developed by IK3OIL. The project is well known, it has been posted many years on various sites and publications by homebrew amateur radios. So, no need to comment much about it. Circuit diagram, PCB as well as many construction details you can … Continue reading
Cablajele placilor A (filtrele trece-banda, amplificatorul bidirectional), respectiv F (placa de baza). Cateva piese montate. Placa B, alimentatorul. Cutia transceiverului. Stadiul actual. Placa A, F, respectiv C.
A412 a fost cel mai popular transceiver de unde scurte construit de radioamatorii din YO. De la aparitie, inceputul anilor 80, si pana in prezent s-au realizat sute de exemplare, unele pastrand schema originala, altora fiindu-le aduse o serie de imbunatatiri de catre cei pasionati. Acest aparat este rodul muncii a unui grup de radioamatori: … Continue reading
