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RXRL-NV Technical and Maintenance Manual
R.V.R. Elettronica S.r.l. (Bo)
Pag. 89
2)
Accendere il trasmettitore e attendere fino a che non è avvenuto
l’aggancio sulla frequenza di lavoro e non si è spenta la spia
UNLOCK.
3)
Connettere all’uscita RF posta nel pannello posteriore, un
wattmetro passante provvisto di prelievo capacitivo, indi collegare
sul prelievo un frequenziometro e sull’uscita passante un carico
fittizio in grado di dissipare una potenza > o = 15W continui.
4)
Selezionare sul pannello frontale con il Meter Selector la misura
FWD della potenza diretta.
Verificare la lettura del valore massimo di potenza (2W, 5W o 10W
a seconda delle versioni).
5)
Valutare con il frequenziometro il valore della frequenza d’uscita
del trasmettitore e regolarlo tramite i compensatori C68 e C69 posti
sulla scheda Main Card.
6)
Connettere ora l’equipaggiamento come mostrato nel SETUP A2.
7)
Regolare il valore di attenuazione dell’attenuatore variabile in
base alla potenza di uscita del trasmettitore (Tabella E).
8)
Collegare il contatore all’uscita IF 10,7MHz (8 Fig.2) e verificare
effettivamente questo valore, regolando tramite i compensatori C27
e C28 situati sulla scheda Sintesi.
In questo modo se la conversione a 10,7 MHz è corretta significa
che la frequenza in uscita dal FRONT-END prima della conversione
è uguale a quella d’uscita del trasmettitore (± 2KHz).
SETUP A2
Содержание RXRL-NV
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Страница 174: ...RXRL NV ii Appendix Rev 0 3 11 04 03 Pagina lasciata intenzionalmente in bianco...
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