YT1DL Only Digital

About me

My name is Dusan Milovanovic, YT1DL. I am first time licensed back in 1989. My first license was "C" that gives me right to work from radio club station and use club's call YU1GTU. Since twelve, I start to built simple detector receivers for medium wave band. Back in eighties MW was still active and full of local radio stations. Take 20m long wire as antenna, water plum as ground, germanium diode from old radio, handset from kids telephone toy, and, I was hooked. Miracle of listening radio without a batteries, simple radio circuits, thrill of doing something that other kids can just dream. Now, I have two sons. When I start to talk about "good old times", older one (nine years old) just says: "What is wrong with you?! Anybody can just turn on the radio; you do not need to build it!". Like my kids, great number of ham radio operators think same: by new Japan radio, turn it on and work. But, where is a thrill of doing something by yourself, making something from nothing? I just do not get it! I do not want to say that everybody need to work with home made equipment (I have Icom radio) , but building some parts from time to time will give them full of joy. When you built your own radio or some equipment you will feel joy and satisfaction with every QSO you made with it.

Genesis G59 digital modes setup

My idea was to make universal setup before install and setup other SDR software. In this way you will be in position to install and use any of SDR or digital mode software described on this pages without need to go backwards and reset or change anything in already installed software. In other words, when you setup Windows, utility, GenesisSDR first time, you can install any of additional digital mode software without change in basic setup of previously installed software. Everything on this pages is tested with SDR multi band transceiver Genesis G59 using single sound card and basic radio setup. No extra (or special) cables needed.

First QRP

My first QSO made with low power was with ex.YU4EZC back in 1990. It must be QRPP. Transmitter was only christal controlled oscillator. Receiver was old Hammarlund SP600. You can check transmitter schematics at picture bellow. It can not be simplest. Christal was from TV set colorburst oscillator. Three 4,5V batteries, connected in serial, was used to power up transmitter. The key was improvised just for tests and i was very surprised when I got an answer to my CQ. I work with club's call sign YU1GTU/QRP at that time.

Date Mode RSTs RSTr Call Sign Name QTH
24/7/1990 CW 599 569 YU4EZC Dino; Zenica

This is logbook data for that QSO

Old Hammarlund SP600 is still working but it is not in use because lack of space. It is extreme rough and VERY heavy.