Hi, welcome to my blog !

My name is Jerzy and thanks for dropping in. I am very glad you are surfing around here so I would like to take this opportunity and present myself. I have been a radio amateur since 1969. My first SWL signature was SP8-1871 and a short time after I got SP8DXL. After 1976 I used SP2DXL and since 1988 I am LA4YGA. From 2004 I am also as SP4DXL when visited Poland. My QTH is Kristiansand, in the south part of Norway, WW locator is JO48be. My favorite subjects in HAM radio are VHF/UHF propagation and construction of RF equipment.

Standings

Standings

Worked DXCC entities and squares

Read More

Digital SWR meter kit

Ultimate3S transmitter expended with very nice Digital SWR meter. The kit is available from Radio-Kits and is very easy to build. Now need only an enclosure for it. Features HF coverage – 1.8-30MHz Displays SWR, forward power, reverse power and supply voltage Peak reading power meter Bar graph or numerical format Reverse power alarm with adjustable […]

Read More

IMPRESSIONS OF THE VNWA3

This is a very versatile instrument and it is  worth his weight in gold. It provides me with the possibility to test and measure the impedance and transmissions characteristics of almost any circuit or network up to at least 500MHz with good accuracy and from 500 to 1300MHz with sufficient accuracy to give a good indication of circuit […]

Read More

Vector Network Analyzer

Today received a package from SDR-Kits with VNWA (Vector Network Analyzer), developed by Tom Baier DG8SAQ. The instrument  offers possibility for measurement up to 500 MHz with usable performance up to 1.3 GHz.

Read More

PRECISION FREQUENCY REFERENCE FOR IC-910

Installed Xref-VT board on my ICOM 910. The board is obtained from VK3HZ . The XRef-VT take a 10 MHz reference signal from a GPS reference or other high accuracy source and provide a precision reference frequency.  This eliminates the problem of radio being off frequency and drifting as it warms up.  If the 10 MHz […]

Read More

Precision Frequency Reference for IC-706MKIIG

Installed Xref-VT board on my ICOM 706MKIIG. The board is obtained from VK3HZ . The XRef-VT take a 10 MHz reference signal from a GPS reference or other high accuracy source and provide a precision reference frequency.  This eliminates the problem of radio being off frequency and drifting as it warms up.  If the 10 MHz […]

Read More

Ultimate3S project finished

Today did last modifications on the U3S. Installed 3 off BS170 devices and replaced the L1 with bifilar transformer. For more info see QRP Labs technical info . Additionally installed switch for 12V or 5V for final transistors. Bias setting is set to 2.2V for “save” power and a clean output. I got following output: 28MHz […]

Read More

WSPR ODX SWL Report

My WSPR signal received by CX2ABP/D on 15m band. Running only 100mW and broadband sloppy dipole antenna. Amazing! Rod is living in Montevideo but his callsign /D means that he is at weekend house. Probably he has there a very good antenna.

Read More