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S52V Slovenia flag Slovenia

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Some informations about me and my work.

I was born in november 1962 in Maribor. I got my HAM licence at secondary school in Ljubljana, where I was  active in radio club YU3DAF. In the end of 1977 I got my first call sign YU3TGT. In the Air tehnical military academy in Sarajevo,  I was active at their radio club YU4EEE. In the period form 1984 to the 1989 I was not active as a HAM. For 3 years I was living in Tuzla in Bosnia and latter 2 years in Belgrade in Serbia. At that time I didn't had much possibilities to bee active on HAM radio.

I became active again in 1989, when I moved from Belgrade to Ljubljana. At that time I got YT3HA call sign. By Slovenia getting independent state in 1991, the prefix "YT" changed to "S5", so I got new call sign S52HA. In the year 1993 I moved with my family (wife, doughter and son) from Ljubljana to my present location. It is a small vilage Straže about 20km south east from the town Maribor in the north east part of Slovenia. The location is on the small hill 350m ASL, but quite opened in most directions.

In the WRTC 2000 which was in Slovenia I hosted USA team (N2IC and K9TM) on my location. They were not too lucky with propagations because of storm and static in the time when they should had best propagations to the north east direction (JA, UA, VK, ZL). Even in that situation the final score was at he first half of all teams. Some locations were much better than this, so they have done the WRTC plasma well.

This picture is from the time of WRTC2000 (june 2000). Small ECO 3 element 3 band beam was a "standard" for the WRTC teams. 

The picture abuve is from the time of WRT 2000, when Steve - N2IC and Tim K9TM where with Jiri - OK2RZ as a refree were active from my location. Since than in 15 years things changed, at least some vegation grew up.

Home

How the years are passing to the present can be seen from pictures above.  

Beside a care for the house and property, I spen't few years on post gradute study (economy and specialization on management). I didn't build all the things I'm interested on, but even in the situation of time shortage. I build 3 automatic QRO's, small tower and finished some HAM project (spectrum analyzer with frequency meter and other acessories like the rig for fast packet etc.). I build quite a few projects published by Matjaž S53MV for packet radio (1.2 GHz PSK and megabit TNC and 0 to 1,5 GHz spectrum analyzer with frequeny meter, tracking generator, LCD display, harmonic converter and storage normalizer acording to the S53MV project (http://lea.hamradio.si/~s53mv/spectana/sa.html). 

 

The best direction here is to the noth east (JA, VK, YB etc). Small down hill helps with lovering the radiation angle. Hils at the horizont are some 15 km away.

To the west and north west (KP4, USA, VE, KL etc.) the area is hilly, but still not too bad.The mountain at the middle (Pohorje) is some 17 km away (other hils are some 300 to 400m ASL).

I spen't quite some time to bulid good working and reliable home made legal limit memory tuned amplifiers. Beside triode GS35b, I also tried with tetrodes, first with GU84b and latter with GU77b.

On the pictures above, you can see the tetrode tube amplifier using GU-77b (electricly simmilar tube like GU84b) 1,5kW+ down key RF out. The stepper motors are connected directly to the TUNE and LOAD capacitors and with flexible shaft directly to BAND switch. Stepper motors are controled with BS2P40 basic stamp micro controller. The micro controller is measuring input frequency all the time and automaticly adjust setting of capacitors and band switch to memorized positions (segments) acording to measured input frequency. The amplifier can also bee controled manualy with 128 bit optical shaft encoders. The idea and part of design were taken from W8EZ tuner and WD7S page. All the PCB's are home made by CIRCAD software. The only line between transciever and the amplifier is the RF coax cable (no other control lines). The positiones of capacitors, band switch, measured input frequency and used antenna are displayed on 30 character 2 row LCD screen. I use the design above with tetrode board form GM3SEK for about 10 years now and it still works fine, no tubes or band switches have been damaged yet.

My hoby was interested to some family members, so my wife Jasna (S52CJC) and son Martin (S52MTT) got their licence and cals, but because of work and study they are not much active as HAM's.

On this (not realy fresh) picture I'm with my son Martin and Lesika (a Scotish Collie which passed away 4 years back).

The equipment in use is ICOM 756PRO3, FT1000MP, antenna KT36XA (upgraded KT34XA) on 12m home made tower, vertical for 40M, slooper for 30M, memory tuned QRO with GU77b and memory tuned QRO with GU84b.

For many years I was happy with TH6DXX, but few years back we replaced it with KT36XA (on the picture below). The TH6DXX still works at S52DK Robi's location. 

I'm looking foward to hear you on the air.

vy 73, Branko

6179657 Last modified: 2015-07-16 00:21:47, 8540 bytes

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