Via Julian G4ILO I came across a WSPRnet report from DM1RG on his success with a newly built KGD Antenna from the German site QRP Project. I had actually ordered their other antenna project (a Multiband Fuchs antenna that enables a single 41m wire to operate on all 8 HF bands) a few days ago and earlier tonight revisiting their site I was readng more about the KGD antenna - a very small vertical dipole - how's 130cm for a 30m antenna that enabled a link from D to VK on 5 watts?
The Kurz Geratener Dipol antenna is no longer available as a kit but the instructions are still online - auf deutsch. I should also have a go at translating the manual. It seems to be quite an effective design. On the 40m version (pictured here from the QRP project site) - all 150cm of it - the bandwidth between SWR 2:1 points is 45kHz.
Reading about the antenna again on the same evening is clearly some kind of good omen? I can almost imagine one mounted bike mobile!
Audio Amplifier Stage Template and Handout: SolderSmoke Direct Conversion
Receiver by N7HPR
-
*Above is Steve N7HPR's template for the audio amplifier board, the board
that gave a lot of people a lot of trouble. But it SHOULD have caused a
lot...
11 hours ago


No comments:
Post a Comment