Upgrading the QO-100 setup : 5 Turn Helix in a jar

General

Page 1 of 40  > >>

Aug 2, 2021
Category: General
Posted by: lex

What's on my hamradio bookshelf? After cleaning the shack I thought about adding a article to this blog on which book i have and use in the shack.

Continue reading. . . . 

Jul 12, 2021
Category: General
Posted by: lex

After a few weeks I decided to setup the dish temporary in my backyard and made some cables to wire every thing up.. The original setup had a off focus placed 4.5 turn helix which was ok, but didn't give the expected  punch and  the signals where a little bit weak in SSB on the QO-100. Other operators told me that the signal was readable but not that strong.  So that was one thing to improve and the idea a of a new Helix feed was born.  

Continue reading. 

May 24, 2021
Category: General
Posted by: lex

A few months ago I ordered a  ATU100 kit from China (without a case), and on a rainy weekend I decided to build it together.  This ATU is equipped with a 1.3" OLEDd display and one thing I hate about these displays is that you almost can't install them without damaging the glass. Thinking about it, I decided that I need a 3D printable frame which puts all the mechanic stress on the PCB instead on the glass  . . .  Continue reading . . .