Saturday, March 31, 2012

My First AVR Project

Finally tested my new AVR-programmer on programming DDS for 50MHz beacon (per OK1DX design here). Easy work with AVR Studio 5.1 (free download).



The DDS is based on a module with AD9850 that I have obtained on eBay for very reasonable price.

I intend to filter it and amplify to ~20W for omni-directional antenna this season. Hope my job schedule will allow me to do that. Preliminary frequencies are 50.0665 / 50.0670 MHz FSK or 50.0665 MHz CW.

Sunday, March 11, 2012

New AVR Programmer

I have bought my first AVR programmer - always used Microchip processors before.



This comes from DIGIKEY, Part Number is ATAVRISP2-ND. Very affordable price!

Furthermore, downloaded AVR Studio 5.1 (free) from ATMEL. Works even with Windows7-64bit!

Tuesday, March 6, 2012

Microwave misc.

Following pictures were on my "af4jf.com" web site when Microsoft announced discontinuing their web-hosting service. These pictures weren't enough for dedicated Page on this Blog, so I am adding them here to preserve them.

Dish for 1296MHz

My first 10GHz station in use

Getting ready for contest operation in EM49ua

DEMI Transverter 10GHz with 2W PA