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KA1TDQ USA flag USA

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I'm active on AM and CW.

I currently hold:

  • Extra Class Amateur Radio License
  • Commercial Radiotelegraph Operator License
  • GMDSS Operator / Maintainer License
  • GROL with Radar Endorsement

These are a few recent pictures of my shack.  

The picture below was my AM station that I had in Massachusetts. Pretty much everything was homebrew. Next to me was my single tube AM transmitter and linear amplifier for 75 meters. The rack holds a second AM transmitter.  Everything has since been scrapped for parts.

Massachusetts AM Station

This picture was taken during construction of the transmitter in the rack.

At the ARRL Headquarters on 1/3/2011. Left to right is our ARRL tour guide George Carbonell N1RMF, ARRL CEO David Sumner K1ZZ, my wife Angelica and me.

Here's my 40 meter Class E RF deck using a single MOSFET.  Carrier output is 50 watts, and it's driven by a DDS VFO.

Next is my 8-FET 75 meter Class E RF deck.  This one is also driven by a DDS VFO.  Carrier power is 400 watts.

Here's a closeup of the driver and MOSFET assembly.

The rack below houses my 20 meter station, which I run at 600 watts.  The Heathkit DX-60 is frequency controlled by a DDS VFO and drives a homebrew single 3-500Z linear amplifier sitting in the bottom of the rack.  You can see the tube glowing in the viewing window.  In the middle sits another class E transmitter I built.  This one is for 75 meters and uses 2 MOSFETS for 100 watts carrier.  The audio amp below it is used for the audio driver. 

My two station receivers are an SDRplay II and a SoftRock Lite II.  I changed the crystal in the SoftRock to cover the AM window of the 75 meter band.

Everything in the shack run off 120 volt outlets.  It makes things much easier.

          

                 SKCC # 16739                       AMI (Amplitude Modulation International)  # 1612   

 

 

8386950 Last modified: 2017-10-13 22:29:10, 4184 bytes

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