Motorola Horizon II Power Supply Unit

Delay of Russian relays REW 15, REW 14

Motorola MCS 2000 and MC 2100 FAIL 01/90 - repaired!

Noise figure of FT-857D

ALC of FT-857D

CW Iambic key

RS4K Controller (not finished)

Homemade UHF Repeater ver.1

DG8SAQ Vector Network Analyzer      VNWA 2.3 (0.001MHz ... 1.3GHz, up to 90dB dynamic range) 

MAX4 Antenna Analyzer      (Homemade Vector Network Analyzer 0.1...60MHz, Project of Jarek, SP3SWJ)

MAX6 Antenna Analyzer      (Improved Version of MAX4, +15dBm out, 0.1...180MHz, SD card, Remote Control, voice)

VK5DJ Azimuth Elevation Controler for antenna rotators ( Not finished)

DIAMOND SX-600 INSIDE  ...   mod / calibration / alignment

FT Meter for YAESU FT-857D / FT-897D

PC Inerface for YAESU FT-817ND / FT-857D / FT-897D ; CAT via USB