The dial frequency for Opera should be set at 500.000kHz USB, the center audio tone is 1500 Hz & the maximum variation is +/- 200Hz, so as you say if someone has not set their dial correctly this could cause the problem. The parameters have been published & all users should be aware of this.
> From:
[email protected]> To:
[email protected]> Date: Thu, 5 Jan 2012 22:33:35 +0100
> Subject: LF: Re: Dual OPERA Beacon 500K OP2+OP15
>
>
> Hi Gary,
>
> Thanks for the response.
> Well I heard Opera signals here tonight on 501.80, 502.00 and 502.20. You
> may check the Delft websdr (I am using this websdr at the moment as my RX
> ant is not back up yet). These users probably have the wrong TX dialed in?
> I still think it would be a good thing to allocate a specific part of 500
> for (all kinds of) beacons. That way interference will be minimized an
> optimal freedom for experimenters (all modes HI) can be assured.
>
> Kind regards,
>
> Minto pa3bca
>
>
> --------------------------------------------------------------------------
> Ceterum censeo Carthaginem delendam esse
>
> From: Gary G4WGT
> Sent: Thursday, January 05, 2012 22:18
> To:
[email protected]> Subject: RE: LF: Dual OPERA Beacon 500K OP2+OP15
>
> Hi Minto,
>
> Sorry that you seem to be experiencing a problem from the Opera beacons.
>
> There should be no QRM from Opera as the Tx sub-band is 501.300 to
> 501.700kHz & would not interfere with your CW QSO's on 502.000 & 502.500kHz.
>
> Also the Opera software will not Tx on an occupied freqency due to it's
> agile frequency feature, it will automatically QSY to a clear frequency
> within it's sub-band before Txing.
>
> I am monitoring the frequency & I have not seen any Opera signal outside the
> limits which I have mentioned above in this email.
>
> 73, Gary - G4WGT.
>
>
>
>
> > From:
[email protected]> > To:
[email protected]> > Date: Thu, 5 Jan 2012 21:47:02 +0100
> > Subject: Re: LF: Dual OPERA Beacon 500K OP2+OP15
> >
> > I am not convinced that this Opera beaconing (experiment??) is a good
> > thing,
> > that is to say not as it is currently conducted on 500.
> > For some reason the frequencies that are used are smack in the middle of
> > the
> > ‘normal’ CW part of 500. Why not go to the (upper) band edge like WSPR?
> > Already I have experienced some annoying interference, after calling CQ on
> > 502 and/or 502.5 I heard more than one Opera sig on 502.0 and 502.2 –
> > right
> > through my CQ. Probably no operator listening or Opera not checking the
> > QRG?
> > Just now I heard PA3CW calling CQ on 502.00. Halfway through his CQ an
> > Opera
> > beacon started ON EXACT THE SAME FREQUENCY. Dick PA3CW did respond (with
> > ...--..) to the CW-like Opera beacon but to no avail..
> >
> > So please let’s agree on the band edges for these types of beacons. They
> > have their use and are fun to work/play with, but as I understand it they
> > do
> > not need much bandwidth so moving to a confined area the band edge(s)
> > should
> > not be a problem.
> > And select one. I see (hear) an Italian beacon day and night somewhere
> > above
> > 501. Another 500 Hz of the 3 KHz allocated lost for CW.
> >
> > Regards, Minto pa3bca
> >
> >
> > --------------------------------------------------------------------------
> > Ceterum censeo Carthaginem delendam esse
> >
> > From: Graham
> > Sent: Thursday, January 05, 2012 18:35
> > To:
[email protected]> > Subject: LF: Dual OPERA Beacon 500K OP2+OP15
> >
> > All
> >
> > Running dual beacon OP 2 and OP15
> >
> > on 500K usb dial set
> >
> > 5 watts carrier power per mode/carrier to 40 ft top loaded vertical
> > erp ? anyone guess ?
> >
> > Reports welcome
> >
> > 73 -Graham
> > G0NBD
> >
> >
> >
>
