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200 meter long wire LW bandscan

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Uploaded by on Aug 17, 2009

Long Wave band scan with a two-hundred meter long wire. This time we have used a very low cost receiver just to know how it does work. Its behaviour is very good after a long wave stations overload.

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Uploader Comments (iw3fzq)

  • Complimenti per questo test, che evidenzia tutte le potenzialità del Degen 1103 !!

    Ovviamente i 200 m. di antenna filare fanno la sua grandissima parte.

    Anche io possiedo questa radio da pochi giorni, e vorrei chiederti:

    che modifica hai dovuto fare per scendere sotto i 100 Khz ?

    Io purtroppo non sono un esperto di tecnica elettronica, ma, se mi darai una spiegazione breve e semplice te ne sarò grato.

    Salutoni,

    Dario.

  • Ciao Dario, la modifica riguarda il software e la trovi cercando le parole chiave su google: modifica degen. E' semplicissimo e ne vale veramente la pena. Fuori all'aperto noterai un incremento della sensibilità incredibile. Enrico.

  • You would do a lot better with your 200 meter long wire if you used a BALUN, transformer, with a good ground stake.

    Your long wire is 600-1000 ohms I guess. The input to the 1103 is NOT 50ohms but is about 200-600 ohms. Call it 400 ohms, so a 2:1 transformer BALUN would be good. or 3:1.

    Also I'd have a little copper rod to drive into the ground for GROUND. This goes to the antenna side of the BALUN. You will get less noise and more gain, ie better SNR.

  • Sure, but in that occasion the only things was a receiver and a piece of wire. I already have some couple of balun (various impendance) but I forgot at home....

  • Never mind. In the latest issue of Monitoring Times they rate this radio and state that LW isn't shown on the front display but if you enter a LW freq it will show in the digital readout and then you can tune either up or down.

  • Yeah, now I understand what you mean. In fact on the left side of the display the frequency starts to 500 kHz. But if you enter an LW frequency it works. I think the factory has made this because the display is too small to add another band.

Top Comments

  • iw3fzq silly question? how did you get below 100khz? i tried to auto scan down at 110 khz but it flipped to the next band? Also could i plug my brass tellegraph wire ( old) dirrectly to the outer ring of jack? . Do i string my wire north /south or east west.? im in southern ,indiana.

  • I didn't know the BBC carried that far on Longwave. Here in Canada I've heard NDB's, but no Broadcast stations on that band.

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All Comments (18)

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  • ottimo... non c'è altro da dire...

  • @iw3fzq where do you get the modified software?

  • How did you get a radio that covers 60 kHz? They only offer radios that cover 100 kHz to 519 kHz?

  • Ho attuato , la modifica del Degen .

    A dir la verità, molto semplice.

    Semplice è stato anche dal lato pratico !

    Infatti dispongo di una filare sul tetto della mia abitazione .

    Grande è stata la mia gioia quando ho collegato il capo della filare all' antenna telescopica del degen...ho tirato fuori il segnale di DCF 77 !

    Non ho ascoltato altro...ma sono contento così !

    Sono coerente che, per fare ascolti più sopraffini, occorra andare all' aperto, come nel tuo video.

    Grazie Enrico.

  • Grazie 1000 Enrico !!

    Grazie per la tua pronta risposta, vado subito su google a cercare il tutto...

    Se la modifica andrà a buon fine te lo farò sapere.

    Dario.

  • wow! very good scan. impressive

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