Amateur radio – Page 10 – LB3HC's engineering blog

Home » Category "Amateur radio" (Page 10)

Good HF condx. A lot of DX worked lately.

By admin 18/04/2011 23/04/2011 DX

The conditions lately have been very good on 20, 17, 15 and 12 meters. I have worked a lot of new stations on the HF bands above 40 lately. Finally the nice sound of a wide open high band that I remember from last time the SSN stayed above 100 is here again.

The SSN peaked above 100 between 12. and 13. April. The SFI also peaked around 14.-16. April. The K-index also stayed low and the auroral activity has been modest. Perfect settings for working DX!

Antenna: broadband vertical with computer controlled tuner. Large groundplane.
Rig: Yaesu FT-1000MP MKV
Power: 200W

No comments

HI-POT tester photo gallery posted

By admin 16/04/2011 23/04/2011 Amateur radio, HF Linear Amplifiers

I have been working on a new HI-POT tester ( high voltage tester) for checking breakdown voltage of vacuum tubes, RF vacuum capacitors, HV cables, RF relays etc.

You can check out the comprehensive photo gallery:here

No comments

OH8X ARRL CW PPT from NRRL Ham meeting 2010 published

By admin 16/04/2011 16/04/2011 Amateur radio, Antennas, Contesting

I have now published the PPT from the OH8X ARRL CW operation. I held this presentation at the NRRL annual meeting at Letohallen in 2010. Note: some of the text is in norwegian but the presentation is mostly images.

Download the PPT as a PDF file

No comments

PileUp! magazine with OH8X ARRL DX CW article PDF posted

By admin 16/04/2011 16/04/2011 Amateur radio, Antennas, Contesting

I have posted the PileUp! magazine article that covers the OH8X (Radio Arcala) ARRL DX CW 2010 operation. The article also covers the antenna switching, the OH8X shack, the rotor systems and the full size 160m / 80m yagis. I have also covered contest experience itself and the contest results that ended in a new Finnish record. (Go to page 38 in the PDF for the article)