Mal,
WSPR does not need a linear PA. It is FSK.
73s Roger
-- Via my 2.4GHz transceiver --
I doubt if WSPR is as good as OPERA taking all things into
consideration. WSPR needs Linear PA at 35% efficiency. Opera works with an
amplifier in class D or E at 90% efficiency. CW es QRS likewise works with
D or E class amp.
You have to look at the bigger picture.
To get a proper evaluation transmit the same ERP with each
mode bearing in mind the inefficiency of a Linear amplifier versus a class D or
E which is over twice as efficient. The way tests are being conducted at present
are too haphazard to be meaningful
Twice as much DC input power is needed with a Linear amp
to generate the same ERP as a class D or E.
g3kev
----- Original Message -----
Sent: Saturday, September 22, 2012 3:36
PM
Subject: Re: LF: Re: Experimental
software for WSPR-8 and -32
Interesting ...
Define 'simple' ?
G..
Sent: Saturday, September 22, 2012 4:21 PM
Subject: Re: LF: Re: Experimental software for WSPR-8 and
-32
Hi to all,
only a question to the experts:
is the
SLOW WSPR better than the simple OPERA-32 ???
73 de Mauro
K1WVQ
At 16.57 22/09/12, you wrote:
Hi Markus, LF,
It works!
First reception of DF6NM in WSPR-8 here.
Timestamp Call MHz SNR Drift
Grid Pwr Reporter RGrid km az
2012-09-22 14:40
DF6NM 0.137538 0 0
JN59nj 0.5 DK7FC/8 JN49ik
175 272
2012-09-22 14:30
DK7FC 0.137499 +13 0
JN49ik 1 DK7FC/8 JN49ik
0 0
I have used a virtual audio cable, with
success.
For those who still try without success, here is my
description in simple words.
If your RX is a HF TRX at 136 kHz dial
setting, then the tone of DF6NM appears at 1440 Hz, the tone of DK7FC
appears at 1430 Hz.
The microphone input is used and it must be
defined as the standard audio input device. This is important since the
SounInput program related always to the default input.
Then
soundinput generates the audio file and replays it in
SoundOutput.
SoundOutput replays it to the standard audio output
device, which is the virtual audio cable 1 for me. So VAC1 must be defined
as the standard output device!
The sound input of the WSPR software
must be set to VAC1 too.
The file wspr-8_rx.bat must be edited. If
the BFO frequency in the WSPR software is 1500 Hz, then this value must be
inserted for fc in the row for the soundoutput settings.
Set the
value for fc for soundinput (the row below) to 1450 Hz and save the
file.
Then double click wspr-8_rx.bat and wait some minutes. You may
watch the small souninput and soundoutput windows...
Hope it works
for others as well now.
73, Stefan7DK7FC
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