Năsăud Cup, 2017 — Cupa Năsăud, 2017

There is nothing better than marrying several hobbies and have fun from it. I have had the intention to be part of this expedition at least since I heard about this contest for the first time. My good friends from Năsăud planned this thoroughly. All our equipment was carried by three 4×4, manned by a …


A cold war era reel-to-reel

This old reel-to-reel was the joy of my teenager days, Back in eighties I was listening to VOA and Radio Kuweit and I was recording mostly on east-german OR-WO tapes (that were quite decent) because the BASF and Agfa were in shortage. Western music reached the black market usually by pilots that were operating civil …


Ferrite beads

I ordered some ferrite beads for a RF circulator project I currently work on but these might also be very handy for the SWR bridge project. These are extremely efficient for RF supression, or at least this is what they say.


Boards for prototypes

For low frequency projects, a fast way to prototype is using a bare PCB and scratch some dividers that allow “manhattan” style prototyping. I am especially very fond of this prototyping technique and I believe that PCB design should be avoided in the early stages of prototyping. Jim Williams was an artist in such designs. …


OCXO tests

A couple of months passed since I purchased two 10 MHz OCXO modules from eBay. And, to my shame, I didn’t even tried these. Yesterday I did a quick test and the devices are spot on. Both measured on my TTi TF930 3GHz frequency counter: The OCXO needs apx 10 minutes for proper warm up …


Cleaning my old Panasonic phone

Today: I am cleaning my old and very dirty Panasonic corded phone. I kept this relic because, being powered from the provider, it does not need batteries and it very reliable. I also own an older rotary phone (kept for the very same reasons).


A visit to a special workshop

My friends from YO5KUC Ham Radio Club embarked on a very ambitious project: they want to participate in the Amateur Radio on the International Space Station (ARISS) program. Now, for those of you that are not familiar with ARISS, this is a awesome educational project run by NASA: “ARISS lets students worldwide experience the excitement of …


Kindle Oasis

I bought my first Kindle in 2012. Since then, I read more than 400 ebooks. Not too much, not too few, but certainly a lot more than I would have read without the opportunity to carry a whole library with me at all time. Although a great device, my Kindle Keyboard v3.0 was a bit …


Hamfest Friedrichshafen 2016

The international amateur radio exhibition is the platform for ham enthusiasts from all over the world.


Electronics from China — Pixie CW

Power supply: DC 9v – 12v Antenna: 50 ohms, is not balanced, 7MHZ band, standing wave ratio below 1.8 Receive the static current: 10 mA @ 9 v Transmission power: 0.8W @ 9 v, 1.2W @ 12 v Frequency range: 7.023 MHz launch, receive 7.023-7.026 MHz (7.023 MHz crystals) Stray (harmonic) inhibition: – 20 db …