Date: March 2, 2014

To: Dr David Michelson

From: Jeffrey CHU – Team Leader

Adebayo ADEGBOLA

Gregory LEE

Mustafa MUSSAYEV

Eric TUNG

Subject : Spectrum Analyzer Project Update.

This memorandum is an update for the week of February 24 – march 2, 2014.

Hardware

We faced issues with the common emitter transistor amplifier as the AC input voltage was not amplifying. But after playing with some values, we were able to get it working with 2 NPN 3904 transistors. The peak detector also gave us some issues which we managed to fix Friday by messing around with the peak detector part values. At the end of Friday, we managed to solve most of the hardware issues, put everything together and get it working very well with our software with frequencies between 51 to 54 Mhz. We could not get a bench on Saturday because the lab was full, and people hogged the benches for a very very very long time >: E .  the project on the oher hand, was going well, until Sunday where everything suddenly stopped working for some unknown reason.

Software

The software is working well, as we were able to implement a log amplifier, and a video filter. We also adjusted the frequencies and offset of our ramp generator so that it could detect 50 Mhz.

We are currently troubleshooting our hardware to see what the issue is, and to take the appropriate measures to fix it, and get it working before the date of our demo.