Monthly Archives: December 2015

XMAS update

Most of the stuff going on in my life at the moment is either work related or I am building some electronics and programming. So not really that much to update. I did however a little while ago build some on the QBL amplifier and I have also been working on my sound card interface that I call openSRI. I got interested in working on it again so I have come quite far and am currently routing a new revision of the board. Currently the only problem I have hardware-wise is a hum on the mic audio but I believe I will get rid of that with the new version.

I will spend a few days at SJ2W during the Christmas break but most of the time will be spent up in Luleå building on stuff and a bit time will be spent at my parents place.

Web shop and improved designs!

I have added a webshop to make it easier to order products and also to keep it more easy for me to keep track of things. I have also made some revisions of the boards. Plus there is also a possibility to buy complete switches from me now, however I normally don’t keep them in stock but build upon requests.

6x2 v4.1

6×2 v4.1

6×1 v3.1
The 6×1 has gotten a lot improved performance on the higher bands and then mainly 6m. I believe the current performance is among the best on the market if not the best.

6×2 v4.1
The 6×2 has got mainly easier to build. It is custom made for a standard type of box that does exist from various manufacturers. It has also got a new interlock board that can be mounted directly on top of the 6×2 RF-board with some longer standoffs. It has got slightly improved isolation performance and improved insertion loss. The compensation coil has now gotten an own spot on the circuit board as well. It should now work also on 6m with good performance.

Stacker v3
The stacker has gotten some improvement mainly when using a single antenna. The insertion loss has been lowered with better RF-design and it is also easier to build now when there is no need to solder jumper wires as previously.

And there is also a “new” addition soon of a high isolation AB selector switch. This is built similar as a single port of a 6×2 switch that can be used to expand the antenna switch system to four radios or it can be used together with two 6×1 switches to create a 6×2 with extremely high isolation. However not available yet.

Go to the Web shop