----- Original Message -----
Sent: Saturday, July 14, 2012 12:23
PM
Subject: Re: LF: Re: DUAL BEACON WSPR +
OPERA 500Khz
Of course you're right,Albert.
I did a wrong calculation,perhaps because it was
before coffee. :-)
73
Clemens
DL4RAJ
----- Original Message -----
Sent: Saturday, July 14, 2012 11:59
AM
Subject: Re: LF: Re: DUAL BEACON WSPR +
OPERA 500Khz
Clemens,
To my knowledge the PEP of two
tones (carriers) is only 6 dB higher than one tone. So a (real) linear
amplifier suitable for delivering 60 - 100 watts output can deal with the
two 15W carriers without any problem.
73, Albert PA0A
Op 14-7-2012 11:21, Clemens Paul schreef:
Graham,
>the amplifiers will produce full power on
500 , but with the 50% efficiency , for
single carrier modes , >its not very cost effective !
On the other hand,if you would use one single
linear amp to TX two 15W carriers (tones in USB)
it would have to be capable
of delivering 900W(!) PEP to stay linear.
73
Clemens
DL4RAJ
E-Mail ist virenfrei.
Von AVG
überprüft - www.avg.de
Version:
2012.0.2195 / Virendatenbank: 2437/5130 - Ausgabedatum: 13.07.2012
E-Mail ist virenfrei.
Von AVG
überprüft - www.avg.de
Version: 2012.0.2195
/ Virendatenbank: 2437/5130 - Ausgabedatum: 13.07.2012
