Изборник Затворити

Custom Morse Code for Mobile Phone Ring Tone

Скраћена веза: https://pedja.supurovic.net/veza/9886

Wouldn’t it be awesome to have Morse Code playing instead of plain ringtone on your phone? You would know who calls without need to reach phone. Of course it would require you to have skill of recognizing Morse Code, but that is minor issue, right? If you do not know it yet, it can be learned. It’s great skill to have, anyways.

Well, there is simple tool that may help: Morse Code Generator. It creates audio file with sound of Morse Code using your custom text. Generated sound is nice sinusoidal tone, pleasant for ears.

What you do is type in text phrase, choose Morse Code speed and Tone frequency and click button Generate. […]
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Dipole Antenna Center Insulator for SO239

Скраћена веза: https://pedja.supurovic.net/veza/9625

Building dipole antennas is always some kind of improvisation. Center insulator is quite simple and may be made in short time with jigsaw and drill.

As I jumped in CNC world I need some simple tasks to learn how to use FreeCAD and other software. So, dipole center piece is ideal just for that. I’ve finished project and learned a lot in the process.

Finished projects is uploaded to Thingverse: https://www.thingiverse.com/thing:4149187

You may use CNC mill or 3D printer to make this part. Pay attention to use material strong enough to survive possible strong forces.

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Uzice Award 2017 – YT9TP activation

Скраћена веза: https://pedja.supurovic.net/veza/8901

Beginning of October (1st to 16th) is time of the year when amateur radio operators from Užice participate in celebration of Užice City Day by activating Užice Award.

Užice is old city. It’s first mention in written document is in document found in Ragusan archives, dated October 9th, 1329, almost 700 years ago.  However, city is much older, it was on map of Roman Empire, and archeology found evidence of settlements as early as Neolithic age.

As award manager I have to give good example by participating in award activation. For me that means going portable as I cannot practice ham radio at my home. […]
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Better Syncing Windows With Atomic Time Server

Скраћена веза: https://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

Скраћена веза: https://pedja.supurovic.net/veza/8628

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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Намена радио-аматерских репетитора

Скраћена веза: https://pedja.supurovic.net/veza/8540

IARU REGION 1 – ПРИНЦИПИ ПЛАНИРАЊА ВХФ, УХФ И МИКРОТАЛАСНИХ ОПСЕГА

ФМ репетитори су намењени као комуникациони сервис мобилним радио/аматерским станицама (укључујући и ручне станице). По потреби, могу бити инсталирани и за побољшање доступности станица у планинским подручјима.

Они нису намењени да омогућују DX везе, стога њихов домет у уобичајеним условима пропагација треба да буде ограничен.

Број инсталираних репетиторских станица треба да буде одређен према
– потребама за регионално покривање
– очекиваном броју корисника

Не треба да буде устаљено да се ФМ репетитори употребљавају као канали за ћаскање за фиксне станице. То се коси са њиховом наменом.

Извор: INTERNATIONAL AMATEUR RADIO UNION REGION 1, VHF MANAGERS HANDBOOK, Version: 7.0. […]
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