Izbornik Zatvoriti

Morse Code Sound Machine

Skraćena veza: https://pedja.supurovic.net/veza/10994

Wanted to create something that will introduce Morse Code to kids. It had to be simple and looking like a game, so I ended up with making Morse code Sound Machine.

Idea is that kids enter their names and then listen how it sounds in Morse Code and also Amateur Radio.

There is animation of sending Morse code and options to change speed and tone frequency. I guess that is enough to keep them interested for a while.

Application is written in plain JavaScript and can be run in any web browser.

Morse Code Sound Machine source code is available at GitHub. […]
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Ham On Key (lyrics)

Skraćena veza: https://pedja.supurovic.net/veza/10937

Ham On Key

That day I was turning dial through the band
My radio was squeaking sounds like a sand.
I could hear some local rag chewing hams
And they talked that bands are open nice.

Oh call
CQ CQ CQ some more time.
Get my answer and I’ll finally be fine.
You, make me, make me, make me wanna cry
And now I beg to hear you call just one more time.

So I say,
Wait for me,
wait for me,
wait for me
Oh, oh, oh.
I never worked no one from your DX zone before.
I say,
beam for me,
beam for me,
beam for me
ay, ay, ay
And if you hear me, happiness will make me high. […]
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Kako proveriti ispravnost SWR-metra?

Skraćena veza: https://pedja.supurovic.net/veza/10120

Dopao vam je šaka neki SWR-metar pa treba da ga proverite da li je ispravan i tačan. Kako to uraditi?

Metod 1: Poređenje sa poznatim antenama

Ako imate antene za koje znate kakav je SWR, prosto priključite SWR-metar u kolo sa antenama, izmerite SWR i ako je tu negde kao što znate da treba da bude, to je to.

Metod 2: Poređenje sa poznatim instrumentom

Povežite nepoznati SWR-metar u antenski sistem zajedno sa poznatim (proverenim). Probno emitujte na frekvencijama koje su vam interesantne i pratite da li nepoznati SWR-metar daje slična pokazivanja kao i onaj provereni. Ako je tu negde, onda je ok. […]
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Obavezno koristite SWR-metar

Skraćena veza: https://pedja.supurovic.net/veza/10130

Kad god me pitaju za savet oko nabavke radio-stanica ne propustim da napomenem da uvek treba imati SWR-metar.

Ne mora biti neki skup, fensi i precizan – bilo kakav je dobar samo ako je ispravan i radi na opsegu na kome vam je potreban. Često za 2m može lepo da odradi posao i neki od onih superjeftinih CB SWR-metara, samo ga prvo isprobajte.

Ako ne možete da kupite – napravite.

Večeras posle dužeg vremena uključim UKT stanicu i na prvo emitovanje vidim da je SWR beskonačan. I pored toga, prolazio sam kroz repetitor sasvim normalno. Da ne bi instrumenta, ja bih stanicu koristio nesvestan problema. […]
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Custom Morse Code for Mobile Phone Ring Tone

Skraćena veza: 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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