Radio

I got my amateur radio license in January 2004, with the call sign SM0YSR. Since then I have been occasionally active on the shortwave amateur bands using CW (i.e. morse code telegraphy), mostly with low power.

QSL info: I prefer paper QSL cards via bureau. By default I send a QSL card, if the other station accepts one. I do not currently use LoTW, eQSL, or similar services.

My station has a mix of commercial and homebrew equipment. I use a simple dipole antenna of about 14 meters in length hanging out from my balcony, connected to a homemade T-network tuner. I have a QCX transceiver built as a kit, which outputs about 3W of CW on the 30 meter band and is mostly used for portable operations. My main rig is a Yaesu FT-450D. I also have an old Howes direct conversion CW transceiver which I occasionally use for portable QRP (2W) operation on 80 meters. Its final amplifier broke down at some point, and I have replaced it with a class C amplifier using a 2N7000 MOSFET.

• 2020: Single-tube regenerative receiver capable of receiving FT8 and WSPR
• 2018: Homebrew T-match antenna tuner
• 2018: My build of the QCX transceiver (30m version)
• 2017: "Lemon drops" 30m regenerative receiver
• 2005: Baking soda powered radio
• 2004: 80m direct conversion transceiver
• 2004: My Pixie2 tranceivers

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