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Changelog

This page tracks new additions to the website.

2026-02-08

  • Added measurements results for receiver path in Rhapsody Zero-IF board. Rhapsody IQ TRX
  • Released 1.5-2.1 GHz variant of ADF4351 board with microstrip LPF and triplexer.
    Released rev01b of 400-800 MHz board ADF4351 LO module
  • Update on the software development for Presto transverter Presto transverter
  • Fixed names of relays in TX/RX board of Forte 600 Forte 600

2025-08-15 Late summer update

  • Added page on ADF4351 VHF/UHF local oscillator module ADF4351 LO module
  • Sneak peak into Presto HF to S band transverter project Presto transverter
  • Updated forte 600 pages, fixed links, updated schematics Forte 600
  • Added change log

2022 to 2025 Updates were not tracked

2022-03-15 Domain registered, sp6gk.com went online!

Radios

Contact me

sp6gk 'at' protonmail.com

Restored tube radio

Here is demonstration of restored radio from 1938.

Band conditions

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Currently on the bench...

2.4GHz PA

I am designing a 2.4 GHz power amplifier from scratch. Wish me luck...

My QO-100 Satelite dish

Satelite dish

My 120 cm prime focus dish. For now in the feed I have the Bullseye LNB. Thanks to my home made bias Tee and polarization controller I can receive the QO-100 satelite just fine on the RTL-SDR. Now I am working on upconverter and 2.4 GHz PA for the uplink.