What a surprise when I looked into the mailbox today! The colourful VK0EK QSL-card arrived directly from the british manager. Now all of my 336 DXCC’s are confirmed by card.
Author Archives: dk5ai
New Webdesign Online
After more than 10 years I switched to a new styled, easier to administrate and modern cms-based webpage. My old design with several 10.000 clicks is now offline. Not all informations are online now but will be transferred to the new system depending on sparetime.
Samuel Morse Award
The MRASZ – Hungarian Radio Amateur Society – offers a nice short time award, commemorating the 225th anniversary of the birth of Samuel F.B. Morse, the creator of the Morse alphabet. The Award is free of charge and could be downloaded as pdf-file.
Heard Island – new DXCC #336
On March 25, 2016 I worked VK0EK Heard Island on 17m CW for an alltime new DXCC #336 out of the actual total of 339. Despite the huge pile-ups I was able to work them later also in SSB and on other bands.
Palmyra Island – new DXCC #335
Today, January 25, 2016 I worked K5P Palmyra Island on 30m CW for an alltime new DXCC #335 out of the actual total of 339.
2m SSPA – Part 1
After my previous homemade 2m Pa with 2x 4CX250B (build around 1975) is getting old, it was time to think about a new “state of the art” amplifier. Transistorized, high power, a low noise blower and all at an affordable price – that would be nice.
In an article of F1JRD, published in Dubus magazine 4/2010, I found the description of a compact (PCB 12 x 7 cm) 2m power amplifier with a Freescale LDMOS transistor. The tremendous gain of about 27 dB, more than 1.000 watts output power, combined with a relatively little effort, was fascinating.
After a longer search in the Internet I decided to build this project and started to assemble the main components. I ordered a BLF578 transistor at ebay, components from France and the copper heatsink from the Netherlands.
