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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Opera\s+questions\s*$/: 11 ]

Total 11 documents matching your query.

1. Re: LF: Opera questions (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Fri, 6 Jan 2012 20:38:09 +0000
Is it possible to establish the "effective sensitivity" when comparing Opera against WSPR, QRSS3, 30 etc? I am unsure if the bandwidths of the modes in which the S/N is shown for Opera is comparable.
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00139.html (16,113 bytes)

2. Re: LF: Opera questions (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Fri, 6 Jan 2012 20:34:36 +0000
Ok Roger    The  tx  time  is  linked to the  mode  name   OP2  = 2 mins  ,   OP15 =  15 mins   OP8    OP31   mins   Who's  on ?  Yes p possibly , but that  would  need  a  web programmer .. but  it
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00204.html (14,783 bytes)

3. Re: LF: Opera questions (score: 1)
Author: Andy Talbot <[email protected]>
Date: Fri, 6 Jan 2012 20:40:21 +0000
And we'd like to know the data coding structure so we could do a beacon Tx in a PIC Andy www.g4jnt.com
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00366.html (13,281 bytes)

4. RE: LF: Opera questions (score: 1)
Author: Gary G4WGT <[email protected]>
Date: Fri, 6 Jan 2012 21:07:18 +0000
Is it possible to establish the "effective sensitivity" when comparing Opera against WSPR, QRSS3, 30 etc? I am unsure if the bandwidths of the modes in which the S/N is shown for Opera is comparable.
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00533.html (16,313 bytes)

5. RE: LF: Opera questions (score: 1)
Author: "Dave G3WCB." <[email protected]>
Date: Fri, 06 Jan 2012 21:37:46 +0100
Hi Graham, Does Mr Ros have a web presence, I mean like Wolf and Alberto? If I was writing all this neat Opera stuff I'd want to bang on about how good it was ;-) 73, Dave G3WCB IO91RM --Original Mes
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00573.html (14,890 bytes)

6. Re: LF: Opera questions (score: 1)
Author: Andy Talbot <[email protected]>
Date: Fri, 6 Jan 2012 21:00:57 +0000
Opera 31 has 8 second symbol periods, so has a noise bandwidth of 0.125Hz. Normalising this -38dB (in the ref 2500Hz) to the actual bandwidth gives a S/N of +6dB WSPR and JT4 when normalised in the s
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00659.html (17,083 bytes)

7. Re: LF: Opera questions (score: 1)
Author: "Graham" <[email protected]>
Date: Fri, 06 Jan 2012 21:50:30 +0100
That's ok Roger .. Rx speed is automatic ..... the speed select is for Tx only - mode select via frequency band No PC time lock required ...its free running OP31 expected round -38 dB s/n (ave) OP8 ~
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00685.html (17,493 bytes)

8. RE: LF: Opera questions (score: 1)
Author: Gary G4WGT <[email protected]>
Date: Fri, 6 Jan 2012 20:49:19 +0000
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00722.html (10,816 bytes)

9. Re: LF: Opera questions (score: 1)
Author: "Graham" <[email protected]>
Date: Fri, 06 Jan 2012 21:26:34 +0100
Ok Roger The tx time is linked to the mode name OP2 = 2 mins , OP15 = 15 mins OP8 OP31 mins Who's on ? Yes p possibly , but that would need a web programmer .. but its only day 6 ! you can check the
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00915.html (12,545 bytes)

10. Re: LF: Opera questions (score: 1)
Author: "Graham" <[email protected]>
Date: Fri, 06 Jan 2012 21:43:49 +0100
You mean the 'Phantom of the Opera' ? hih Its only supposed to be in beat test , but that seems to of slipped slightly .. I think there will be a site ect , but he is waiting till the system is stabl
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00918.html (15,102 bytes)

11. LF: Opera questions (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Fri, 6 Jan 2012 20:10:29 +0000
Somewhere I must have missed some information: How long does it take to send a beacon message in Opera8 and Opera31? Is it possible to have something like the WSPRnet database showing stations on eac
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00971.html (10,369 bytes)


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