Učenje telegrafije pomoću programa Just Learn Morse Code

Skraćena veza: http://pedja.supurovic.net/veza/8821

Just Learn Morse Code je program koji omogućava učenje Morzeove telegrafije uz pomoć računara. Kao i drugi programi ove vrste, otprema znakove po Koch metodu ali se može podesiti da radi po drugim metodama pa i onom koji je kod nas uobičajen (JNA). Omogućava otpremu telegrafije Farnsworth brzinama (podešavanje različite brzine otpreme znaka od otpreme teksta).

Program je veoma prilagodljiv i zaista je dobar alat za učenje telegrafije, kako grupno tako i samostalno. Osim uobičajenog učenja slova, brojeva i znakova interpunkcije može se unositi proizvoljan niz znakova za vežbanje, može se učitati unapred pripremljeni tekst iz datoteke, a program ima ugrađene i opcije otpremanja reči, skraćenica i Q kodova što je vrlo korisno kao priprema za održavanje radio-veza. […]
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Učenje telegrafije pomoću programa Teach Morse New

Skraćena veza: http://pedja.supurovic.net/veza/8812

Teach Morse New je program koji omogućava samostalno učenje prijema Morzeovog telegrafskog koda. Otprema znakove po Howard ili Koch metodu po izboru i omogućava otpremu telegrafije Farnsworth brzinama (podešavanje različite brzine otpreme znaka od otpreme teksta).

Program je zanimljiv je zato što prati napredak i prilagođava vežbe mogućnostima osobe koja se obučava, a kako učenik upotrebljava tastaturu za unos primljenih znakova tako uči i upotrebu tastature računara za prijem Morzeove telegrafije što je itekako korisno.

Pored računara i ovog programa nije vam potrebno ništa drugo za vežbanje. Dobro je imati slušalice ali nije neophodno.

Podešavanje programa

Nakon pokretanja program prikazuje glavni prozor u kome se sve dešava: polje u kome se ispisuju primljen znaci, podešavanje brzine optreme, dugmad za pokretanje i završetak vežbe, izbor metoda učenja i grafički prikaz napretka u učenju. […]
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Spiderpole 12m anchoring construction

Skraćena veza: http://pedja.supurovic.net/veza/8741

Spiderpole 12m made by Spiderbeam is very useful for portable ham radio activities. To do the job it must be properly anchored. This pole may be anchored at the bottom (at about height of the first element) which allows it to withstand wind speed of abut 80 km/h, and at 7 meters high using guying lines (as recommended by manufacturer) which allows surviving windows of 120 km/h.

Anchoring at the bottom seems not suitable for portable, as it requires either to have already set strong short pole (fence or something) to attach pole, or dig one into the ground. […]
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Dunax GPN-4B antenna construction details

Skraćena veza: http://pedja.supurovic.net/veza/8733

After few years of sitting on top of my apartment building I decided to bring my Dunax GPN-4B antenna down for repair as top capacitive hat was broken. I found out that there actually no technical details about fixing it. So I went through some work of gathering such information.

First I found out that manufacturer is out of business. Antenna is not in production any more and manufacturer site is down. I asked help from fellow hams, some sent me some info they had, some sent me contact info for manufacturer.I also used my own antenna to take measurements, so finally I got quite complete details that I believe could help other fellow hams trying to repair their own antennas but also ones that want to build similar antenna. […]
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Build grid dip meter adapter coil for antenna analyzer

Skraćena veza: http://pedja.supurovic.net/veza/8706

Antenna analyzer like MFJ-259, MFJ-225, MiniVNA and similar may be used as simple grid dip meter for measuring coils, traps and capacitors. All you need is grid dip meter adapter coil which you may buy (costs for MFJ adapter set is about 30 USD) or make it by yourself for few USD.

If you want to build on your own here are dimensions of original coils sold by MFJ.

Small coil for short wave frequencies: coil diameter 15mm, coil length 15mm, 30 turns of 0.5 mm copper wire wound on PVC tube. Coil inductance should be about 3.6μH. […]
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CW Communicator

Skraćena veza: http://pedja.supurovic.net/veza/8690

Istražujući programe za učenje Morzeove telegrafije za potrebe obuke u našem radio klubu YU1ABH, naišao sam na jedan prilično interesantan program – CW Communicator (CWCOM). Autor programa je Džon VK1EME. Ovaj program omogućava da koristeći telegrafski kod komunicirate sa drugim operatorima preko interneta. Naravno, svrha programa je učenje jer veze održane preko Interneta se ne smatraju pravim vezama. Smatram da ovaj program može biti izuzetno koristan prilikom obuke mladih telegrafista jer im omogućava da uz pomoć računara i Interneta mogu da vežbaju telegrafiju i održavanje veza na način koji je vrlo blizak radu na radio-stanici.

CW Communicator

CW Communicator

Vezu sa drugim operatorima možete ostvariti tako što ćete direktno povezati programe koristeći IP adrese računara. […]
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Better Syncing Windows With Atomic Time Server

Skraćena veza: http://pedja.supurovic.net/veza/8659

You may have need to have accurate time on your Windows PC. Windows already does have support for network time server synchronization and with recent versions ti should be set and turned on by default meaning if PC has access to Internet it will synchronize its internal clock with some of the world atomic clocks.

However, it might be good enough as synchronization is set to rather infrequent time periods, one day or even whole week. For some purposes it is needed to have clock synchronized more frequently. I need it for working Amateur Radio digital modes.

There are number of third party applications that can be installed on Windows PC as SysTray applications or services and allow more precise time synchronization. […]
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Radio Amateurs in War

Skraćena veza: http://pedja.supurovic.net/veza/8628

Symbol of defense of Yugoslav people became global symbol of resistance to NATO and USA terror all over the World.

March 24th. Year 1999. The very end of the 20th Century. With the nightfall strange sounds were heard in the sky and at 19:45 – explosions. Bomb fell on Yugoslavia, small sovereign country in Central Europe.

One word is on everyone mind – WAR!

Yugoslavia was attacked by NATO military alliance led by United States of America, the country Yugoslav people always considered as one of the best friends. At first, people were fighting mixed feelings caused by unjustly accusations, vicious attacks and betrayal of considered friendly and ally countries and disbelieve that what happens is at all possible as that was act against international law. […]
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