Portabl antena od ribolovačkog štapa

Skraćena veza: https://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. […]
[ ... vidi ceo članak ... ]

Ham radio portable in the night

Skraćena veza: https://pedja.supurovic.net/veza/7640

hamradio-portable-in-the-night-02

Do I have to explain why I love ham-radio?

 

Kakvih sve likova ima (Danijel Miletić, „radio-amater“, Republika Srpska)

Skraćena veza: https://pedja.supurovic.net/veza/7632

Primetim ja danas da je na grupi BiH radio-amatera na Fejsbuku  objavljen jedan članak koji je bukvalno prekopiran sa mog bloga, a potpisao ga je Danijel Miletić (Bijeljina, Republika Srpska) kao autor. On inače i administrira tu grupu.

Ostavim komentar u koji stavim link na članak na mom blogu odakle je tekst uzet. Nepun minut kasnije izbačen sam iz te grupe.

Pošaljem Miletiću privatnu poruku da pitam što sam banovan i dobijem odgoor:

Ispade da sam ja navodno negde nekoga nagovarao da ga banuje (što nije istina, niti znam gde je banovan, niti sam igde tražio da bude banovan) i da je on u stvari mene banovao čisto da mi se osveti i da me kao ucenjuje da, ako ja isposlujem da tamo negde gde su njega banovali skinu ban, pa će i on meni. […]
[ ... vidi ceo članak ... ]

WCW2014 – World Castles Weekend in Uzice, Serbia

Skraćena veza: https://pedja.supurovic.net/veza/7592

It was just several days before this year world Castle Weekend that I decided to participate by activating one of the fortresses in surroundings of my hometown Užice. Actually, I was targeted to activate YU-0030, Fortress of Solotnik, as it was never activated before and thus should be more interesting for WCA hunters.

wca-yu-00023-2014-06-14-01

As I still did not have all necessary equipment and tools I asked for a help of Milan YU1ZZ. As experienced contester he was up to the task, ready to improvise if necessary. One short phone call settled it down. Milan is primarily high class contester and DXer, but it seemed to me that he is actually seeking for something fresh and more relaxing, and he was really interested in my previous activation of Old fortress in Uzice (YU-00023). […]
[ ... vidi ceo članak ... ]

Ham Silouethes

Skraćena veza: https://pedja.supurovic.net/veza/7586

ham-silouethes-02-pedja.supurovic

Serbian ham radio portable expedition captured on Zlatibor, Karaula, VHF contesting in bad weather.

W6CCP – The King of Impoliteness

Skraćena veza: https://pedja.supurovic.net/veza/7530

Today just past 17:00 UTC at 14214 kHz I witnessed behavior of  ham radio operator W6CCP that was as rude as it could get.

Saddiq A41KJ was on the frequency calling CQ, and had big pile-up from European stations. He was called all over but handling situation nicely and getting through the list of stations calling him.

Then, out from nowhere, W6CCP came out, obviously with very high power, screaming on top of all other callers for Saddiq to turn to long pass to North America. He was so powerful that he out-called all stations in pile-up. He gave fine report for A41KJ but insisted for him to turn to long pass. […]
[ ... vidi ceo članak ... ]

Remote Controlled Antenna Switch

Skraćena veza: https://pedja.supurovic.net/veza/7497

As I live in apartment building I have apparent problem with setting up ham radio antenna. The obvious place to set up antenna was the roof as it  is easily accessible. Due to small space and me not wanting to make mess of a wires, I decided to use compromise vertical multiband. A friend had spare DunaX-GPN4B (40, 20, 15 and 10m) so it was obvious choice. I had to put down about 30m of coax cable to my apartment, and soon I was in the air.

Not for long I found out that I do miss 80 meter band a lot. […]
[ ... vidi ceo članak ... ]

Koliko snage emitujete?

Skraćena veza: https://pedja.supurovic.net/veza/7483

Nepresušna tema u radio-amaterskim razgovorima je snaga radio-stanica. Ma koliko da je imamo, to nikada nije dovoljno. Uvek su na ceni jače radio-stanice, a mnogi radio-amateri ne smatraju svoju opremu zaokruženom ako ne nabave neki pojačavač snage.

Interesantno je da je prvi korak u povećanju dometa obično povećanje snage predajnika. Nažalost to ume da ode i dotle da se izlazi iz okvira propisa i emituje snagama koje su daleko veće nego što je to dozvoljeno, a da rezultati ne budu baš odgovarajući.

Mnogi su se uverili da prosto povećanje snage ne da nije uvek nego često uopšte i nije rešenje. […]
[ ... vidi ceo članak ... ]