10 GHz

I’ve spent the last few weeks putting together some equipment for a small 10GHz station using a mixture of pre-built and homemade modules. The block diagram shows the main components of the system.

The core of the system is a simple transverter designed by W1GHZ and a DF9NP PLL local oscillator board running at 9936MHz for the 432MHz IF. It’s probably overkill but I decided to repurpose the 4 channel Ardunio sequencer I was planning to use for the 2m EME station. It provides a lot of flexibility and is ideal for handling different relay voltages.

I recently salvaged a 1m offset dish that I’m planning to use on 10 GHz and need to build a suitable feed. To determine the dish properties and parameters for a suitable feedhorn I used the Wifi calculations option in Parabola Calculator version 2.0 (same code as W1GHZ’s HDL_ANT program).

Dual-mode feedhorns are frequently used for offset dishes because of their performance. The W2IMU Horn Design and Template option in HDL_ANT generated the following dimensions for a dish with a f/D = 0.75 at 10.368 GHz.