Opera experts,
I have a simple question to Opera. If the program keys a PTT of a PA
like a CW key and the operator can choose the frequency where he
transmits, what is the range of frequencies where a decode can be
expected from someone who set his RX to e.g. 477 kHz? Is it a USB
bandwidth, so maybe from 300...3000 Hz, i.e. 477.3...480 kHz?? Can i
completely free decide where i want to transmit on?
And if someone decides to let Opera choose the transmit frequency in
that band (e.g. by using a HF TRX and a transverter), where does the
program usually transmit. Is is accidentially oder is the range much
more limited?
73, Stefan/DK7FC
Am 10.07.2012 14:29, schrieb M0FMT:
Hi Graham
I have found that if I run 24 Watts no body hears me. If I run
one Watt people hear me?? If I boost the 1 Watt rig to 4 Watts same
rig people don't hear me...... dohh! It may be RF into the Opera PIC
keyer? I will next time try screening the PIC keyer. But the thing is
my PC decodes everything.... why?? Any ideas?
73 es GL Pete M0FMT IO91UX
TNX FER RPRT
Am now sending op4 on 500 at 1/2 intervals on the hour and 1/2
hour very approx. Can you report please if available will try to keep
it on most of afternoon.
73 es GL Pete M0FMT IO91UX
Pete
RX set 500.000 usb , running OP4 and WSPR rx at
the moment
GL !... G ..
Sent: Monday, July 09, 2012 6:26 PM
Subject: LF: OPERA MONITOR Now ?
Hi all
While you are all testing Graham's theory on optimum band
usage could you report my OP4 transmissions. I am using the stand alone
PIC 'JNT designed Opera keyer switching my all Valve (Tube for our
Cousins) TX.
Power now increased to four (4) Watts O/P from the original
1Watt at the antenna up lead. Antenna up lead abt 40 ft x 128ft long
E/W. from IO91UX.
73 Pete M0fmt.
73 es GL Pete M0FMT IO91UX
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