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

HamClock

Skraćena veza: http://pedja.supurovic.net/veza/8292

hamclockHamClock is quite simple Android application for amateur radio operators. It’s purpose is to help hams working portable.

Operating portable usually means carrying light equipment, especially if everything has to be carried in backpack, on foot or on bicycle.

In most of my portable work I do not carry laptop with me. It is not that I do not need it, but I usually work in the open, and it is really hard to read my laptop’s display when in sunlight, and even in light shade.

Therefore I am used to carry paper log of pocket size and do logging by hand. […]
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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

yt9ttp_p_or_mm_m

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.

yt9tp-veliki-rzav-20150718-1

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

Skraćena veza: http://pedja.supurovic.net/veza/7644

portabl vertikalna antenaŠtap je od fiberglasa, dug je šest metara, a težak svega nekoliko stotina grama. Dovoljno je čvrst da se na njega može okačiti vertikalna antena pa i dipol. Sklopljen štap je dug 110 centimetara tako da je prihvatljiv da se nosi na rancu.

Antena je klasičan monoband dipol za 14 MHz, samo je monitran tako da se vrući krak okači na vrh štapa i visi kao uspravna antena, a drugi krak se postavi pod uglom od 45 stepeni kao jedan radijal i antena praktično radi kao GP sa jednim radijalom. Antena je umerena i SWR je 1:1.

Zračenje je određeno smerom radijala, tako da se premeštanjem radijala oko antene može menjati i smer zračenja. […]
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My First World Castle Award Activation (WCA YU-00023)

Skraćena veza: http://pedja.supurovic.net/veza/7468

I did my first World Castle Award activation. Although it is mid February, weather forecast was sunny and warm for today, so I planned to go outdoors. As I live very near WCA YU-00023 (Stari grad, Užice) I decided to pack up my gears and walk to the old fortress and make an activation. I was accompanied by a non-ham friend.

YT9TP WCA YU-00023 Activation

As I am preparing for portable operations, this was nice opportunity to check how my equipment behave.

Basically, it is YAESU FT-857 with portable three band linked dipole (80, 40 and 20m), one LiIon 14.4V 5Ah NL202HD battery and another sealed lead acid 12V 7Ah battery. […]
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