Ažirirani priručnici za radio-amaterske ispite

Skraćena veza: http://pedja.supurovic.net/veza/8443

Na blog su postavljene nove verzije radio-amaterskih priručnika:

Priručnik za radio-amatere operatore treće klase – PROPISI (verzija 0.11).


Priručnik za radio-amatere operatore treće klase – SAOBRAĆAJ (verzija 0.15).


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WCW2016 – World Castles Weekend in Uzice, Serbia

Skraćena veza: http://pedja.supurovic.net/veza/8404

For this year World Castle Weekend I activated Old fortress in Uzice (WCA YU-00023, JN93VU, WAS ST03) using my call sign YT9TP/P. Again. Activation was not announced, as usual, and served as surprise for fellow hams chasing WCA points. I had great help from Goran YU4RAA who participated in antenna and station setup.


Weather prognosis was not ideal. It was expected to have some showers which reduced our options of station location. Instead of setting it on top of fortress which would provide high point and lot of clear space, and no protection from bad weather, we decided to go safer way and settle at only space that can be used as shelter. […]
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Baofeng LiIon charger modification

My idea was to be able to use this to charge Baofeng radio in various power conditions including in my car and this voltage was a problem. I noticed comments that charger should not be connected to higher voltage than 10 Volts. So I modded charger to fit higher voltage. baofeng-charger-mod

Iron Powder Toroid Cores Color Codes

Skraćena veza: http://pedja.supurovic.net/veza/8352

Iron Powder Toroid Cores part numbers are presented using format Tddd-m where dd is core diameter in tenths of inch and m is material grade. Also, cores are color coded to represent material grade.

Material grade defines frequency range core may be used for. There is no strict standard for coding but for informal purpose this table can be used.

Color Frequency
0 Tan/Tan 50 MHz – 350 MHz
1 Blue/Clear 150 kHz – 3 MHz
2 Red/Clear 250 kHz – 10 Mhz
3 Gray/Clear 20 kHz – 1 MHz
4 Blue/White 3 MHz – 40 MHz
6 Yellow /Clear 3 MHz – 40 MHz
7 White/Clear 1 MHz – 25 MHz
8 Orange/Clear 20 kHz – 1 MHz
10 Black/Clear 15 MHz – 100 MHz
12 Green/White 30 MHz – 250 MHz
15 Red/White 150 kHz – 3 MHz
17 Blue/Yellow 20 MHz – 200 MHz
42 Blue/Red 30 kHz – 80 kHz


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Radio-amaterski frekventni opsezi

Skraćena veza: http://pedja.supurovic.net/veza/8193

Radio-amateri su jedini civilni korisnici radio-frekvencija kojima su frekvencije dodeljene na korišćenje besplatno. Frekvencije su im dodeljene u celom radio-spektru što omogućava eksperimentisanje i istraživanje u oblasti prostiranja radio-talasa.


Za potrebe obuke i pripremu za polaganje stručnih ispita za radio-amatere, pripremio sam, pregled radio-amaterskih frekvencija (Radio-amaterski opsezi (933)). U njemu se nalaze naznačeni radio-amaterski opsezi, podopsezi namenjen za određene vrste rada i naznake koje podopsege mogu da upotrebljavaju radio-amateri prve, druge i treće klase.

U propratnom tekstu dato je i objašnjenje označavanja vrsta rada.

Preuzmite Radio-amaterski opsezi (933). Dokument je u PDF formatu.

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YT9TP SOTA activation Bandera (Tornik, Zlatibor) – YU/ZS-023

Skraćena veza: http://pedja.supurovic.net/veza/8176

26. July 2015. Finally, one modest temperature day came after two weeks of very hot weather in Serbia. I saw it as an opportunity to visit mountains and test slowly but steady gathered equipment for outdoors ham radio activities.

I decided to spend nice day activating highest peak of mountain Zlatibor, called Bandera, topping Tornik hill. With height of 1497 meters it dominates area and provides very nice see-sightings.

Sights from Tornik, Zlatibor

Sights from Tornik, Zlatibor

I asked Filip YT1PRO to join me. I guessed as he is quite fresh licensed operator he would be interested to see some action. […]
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Sufiksi u radio-amaterskim pozivnim znakovima

Skraćena veza: http://pedja.supurovic.net/veza/8166


Prema Pravilniku o korišćenju amaterski radio stanica (član 25) regulisano je da, ako amaterska radio stanica emituje van mesta navedenog u licenci, ona može koristiti dodatne sufikse kako bi naznačila takav način rada.

Sufiks se u radio telegrafiji odvaja od pozivnog znaka znakom kosa crta (/) a u radio telefoniji se iza pozivnog znak aizgovara reč koja odgovara oznaci sufiksa.

Sufiksi mogu biti:

– za emitovanje za vreme zadržavanja, sa mesta koje nije unapred određeno u telegrafiji se korsiti /P a u telefoniji engleska reč portable (portabl). Na primer, moj pozivni znak bi se telegrafijom emitovao kao YT9TP/P a telefonijom bi glasio ipsilon timok devet timok pirot portable na srpskom, odnosno yankie tango nine tango papa portable na engleskom jeziku. […]
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YT9TP portable ham radio activity from canyon of Veliki Rzav

Skraćena veza: http://pedja.supurovic.net/veza/8150

18.07.2015. was set by meteorologists to be very hot day. That meant for me that I had to get away from city. My XYL requested that it has to be somewhere near cooling water. So we decided for canyon of Veliki Rzav, location near Roge village in vicinity of my city – Užice. You cannot do much better than canyoning on hot day, right?

Sitting in shade and doing nothing is not my style, so I packed my rig and equipment for portable operations to cut time.


I raised station few meters from river, equipment in tree shade and antenna in small open field few meters away. […]
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