Iniziative ed avvenimenti

LE MIE ANTENNE RX    (by IK0XBX Francesco)

La mia attività radio è stata sempre concentrata nelle bande basse, in particolare 80 e 160 metri, con i compromessi di un QTH in semiperiferia, non molto rumoroso ma ancora troppo vicino alla città, con abbastanza spazio per stendere una beverage da 150 metri circa e una da 90, ma non sufficiente per poterne realizzare una da 240 metri diretta sugli States..; non posso lamentarmi ma non ho sicuramente il QTH ideale per poter fare l'attività che vorrei... Un grande aiuto l'ho avuto con le antenne per RX che utilizzo da anni, in continua evoluzione:
  Una beverage bidirezionale con doppino telefonico 100-280 gradi da 150 metri
  Una beverage fissa sui JA da 90 metri
  Una coppia di loop K9AY con cui copro tutte le direzioni
  Una DHDL reversibile sugli States per ascoltare via corta o via lunga 
Ho condiviso sul mio sito (www.ik0xbx.com), nella sezione "Antenne RX", le linee guida che ho seguito per realizzare la beverage monodirezionale sui JA e la coppia di loop K9AY; non appena avrò terminato altre prove darò maggiori dettagli anche per le antenne reversibili (beverage e DHDL).

Il link diretto è questo http://www.ik0xbx.com/rx%20antenna%20ik0xbx.pdf

Considerando che voglio migliorare ulteriormente la situazione RX (troppo spesso non riesco a completare i qso perché i corrispondenti spariscono nel rumore di fondo), sono ben accettate critiche costruttive.

73 de IK0XBX Francesco

Previsioni Meteo Umbria

Risorse di RADIOASTRONOMIA ed E.M.E. by I0NAA

IQ0PG & IQ0PG/P awards


 
 
  
 

 

  
 
 
 

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  • Sterling Mann, N0SSC, has been named as the International Amateur Radio Union (IARU) Region 2 Liaison for Youth, the IARU Region 2 Executive Committee (EC) has announced. With the support of IARU Region 2, the Liaison for Youth will reach out to young hams throughout the Americas and their member-societies to develop and promote interest in amateur radio on the part of young hams through self-s...

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  • The latest beta release of the WSJT-X digital software suite includes digital protocols particularly designed for communication on LF and MF bands, such as 2200 meters and 630 meters, and its developers say that during its first few months of testing, contacts have spanned intercontinental paths “many times” on those bands. New protocols FST4 and FST4W are included in WSJT-X version 2.3.0-rc1 (...

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