ABOUT THE HISTORY, ACTIVITIES, AND INTERESTS OF 5Z4FT.
After several years as a Shortwave listener, I was first licensed as 5Z4FT in 1991. I spent a brief period in the Czech republic, and Slovakia were I was licensed with CEPT licences OK8EFT, and OM9AFT. I am also licensed as KI4LTH.
I have experimented with various types of wire antennas on HF, these include the ordinary dipole, windom, G5RV, delta loop, inverted-L, and inverted-V. At VHF, and UHF, I have built 2M, and 70CM ground planes, as well as a three element yagi for 2M. My main interest lays with the electronics, and the techniques of radio communication. I have built a NORCAL20 CW QRP transceiver, and have had acceptable performance with it using 5 watts, and a dipole. I have had QSOs with all continents. At the moment, I am developing an interest in digital, and amateur radio space communications. I have several QRP home brew projects under consideration.Discussion Topics.
Satellite tracking program
Where to register for current Keplerian elements(Choose 3 line with object names)
Alternative site for Satellite tracking information
Voltage balun transformer design(Use only for perfect profiles)
Five simple Antennas
A Direct Conversion HF Amateur Band Receiver
QSL card of my first contact using a Norcal20.
A 74HC240 based Qrp Transmitter.
PIXIE Micro Transceiver Narrative.
Constructing a Rockmite, and Himite
Constructing a Norcal Sierra/Elecraft K1/Wilderness Sierra/Tramp-8
Constructing a Software Defined RX/TCVR.
Modifications to a Smallwonder Labs SWL 40+ for 15M CW.
Constructing a HF CW/SSB/PSK31 TCVR.
Constructing a PIC Windows based Packet TNC.
Constructing a Sound Card/Digital Interface.
Constructing a Satellite Tracking Interface(Fodtrack, and SatTracker688)
Constructing an Iambic PIC CW Keyer, and PIC CW Decoder with Frequency annunciator
Constructing a PC Software and PIC controlled DDS VFO using the AD9835