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  • I had a UTC controlled clock in my shack. The drawback: It showed Central European Time, as controlled by DCF77, the time transmitter that is controlled by the Physikalisch-Technischen Bundesanstalt (PTB) in Braunschweig, Germany. So, when I made a QSO, I used to look at the analog clock, had to convert the time to digital, substract 1 or 2 hours depending on the summer savings and then I had the time. Of course you can buy a cheap digital clock and set it to UTC, but nothing beats an atomic-clock synchronised digital clock, right?

     

     

     

     
  • The M.A.S., (Minimal Art Session) is a contest which was founded by Dr. Harmut "Hal" Weber, DJ7ST (SK). The idea is to encourage Hams to build and operate a rig consisting of a minimum of components.

     

     

     

     

     
  • making the fingerplates was a hell of a job. I bought a 2 square feet of brass sheet, 0,8mm thick. Cut some pieces and sprayed it with Positiv20 (the stuff that is used for making ordinary PCB light sensitive).

     

     

     

     

  • Dear Visitors, really sorry to tell you that I only just found out that the mail function of the website was not working! This due to the fact that my ISP does not allow direct connections to the outside world using port 25.

     

  • The transmitter is mechanically easier, but a bigger challenge electronically. Various inductances have to be calculated for 6 bands; the crystal circuit and the grid resonance circuit.

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A 80m QRP CW transceiver

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Written by Administrator
Created: 15 February 2011
Last Updated: 30 October 2013
Hits: 45604

80m qrp trxThe M.A.S., (Minimal Art Session) is a contest which was founded by Dr. Harmut "Hal" Weber, DJ7ST (SK). The idea is to encourage Hams to build and operate a rig consisting of a minimum of components.

 

 

 

 

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Creating the finger plates

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Written by Administrator
Created: 04 February 2011
Last Updated: 30 October 2013
Hits: 37451

fingerplatemaking the fingerplates was a hell of a job. I bought a 2 square feet of brass sheet, 0,8mm thick. Cut some pieces and sprayed it with Positiv20 (the stuff that is used for making ordinary PCB light sensitive).

 

 

 

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Mail Problems Solved

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Written by Administrator
Created: 04 February 2011
Last Updated: 30 October 2013
Hits: 35257

Dear Visitors, really sorry to tell you that I only just found out that the mail function of the website was not working! This due to the fact that my ISP does not allow direct connections to the outside world using port 25.

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B2 Spy Suitcase TX

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Written by Administrator
Created: 27 July 2010
Last Updated: 30 October 2013
Hits: 41852

B2 TXThe transmitter is mechanically easier, but a bigger challenge electronically. Various inductances have to be calculated for 6 bands; the crystal circuit and the grid resonance circuit.

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B2 Spy Suitcase RX-2

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Written by Administrator
Created: 21 July 2010
Last Updated: 30 October 2013
Hits: 40023

RX-2Now the IF/AF part is working, it's time for the next part of the receiver: HF amplifier, Local Oscillator and Mixer. That is located on the second subchassis, so it's time for some more sawing, drilling and soldering.

 

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  1. B2 Spy Suitcase RX-1
  2. B2 Spy Suitcase Power Supply
  3. Building a replica of the B2 Mark III Spy Suitcase
  4. Website online

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