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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+Opera\s+v\s+qrs\s+evaluation\s*$/: 18 ]

Total 18 documents matching your query.

1. LF: Re: Opera v qrs evaluation (score: 1)
Author: "James Moritz" <[email protected]>
Date: Tue, 31 Jan 2012 23:52:19 +0100
Dear Eddie, LF Group, I did a rough and ready comparative test on the "sensitivity" of QRSS3 and Op4 using your back-to-back transmissions. For 500kHz reception, broadband noise from the broadcast st
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00102.html (11,924 bytes)

2. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: "Graham" <[email protected]>
Date: Tue, 31 Jan 2012 21:47:07 +0100
JIm, I am seeing -32 db decodes, which must be round the lower limit , the s/n level is referenced to the path-sim software , the readings may be less than other beacon modes , for the same actual le
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00280.html (10,165 bytes)

3. LF: Re: Opera v qrs evaluation (score: 1)
Author: "James Moritz" <[email protected]>
Date: Tue, 31 Jan 2012 20:17:04 +0100
Dear Eddie, LF Group, In an attempt to actually make a comparison, I have set my RX to the 500kHz WSPR frequency, with Spec Lab going also. Since it has been running, G3ZJO's QRSS3 has been about 10
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00790.html (10,672 bytes)

4. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: qrss <[email protected]>
Date: Tue, 31 Jan 2012 22:16:58 +0000
Hi Jim It's still on, I see lots of de-codes from you, it will be interesting to hear your findings. I like QRS Morse, I have used it extensively, just look at the e-mail I post to the group with, si
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-01/msg00934.html (10,290 bytes)

5. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: qrss <[email protected]>
Date: Wed, 01 Feb 2012 09:29:41 +0000
Mal Fact. Everyone including G3KEV has missed my QRS3 and QRS10 on 500kHz every time I have had it on, using this same TX, in fact I removed the PIC which sends the QRS and inserted OPERA, viola PA0'
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00079.html (13,154 bytes)

6. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: qrss <[email protected]>
Date: Tue, 31 Jan 2012 23:37:35 +0000
Dear Jim, Rik, Laurence Thanks for the information, it does seem from all tests that QRS3 and OP4 are about equivalent. QRS as we know takes a human to notice its there among noise and can get missed
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00105.html (11,495 bytes)

7. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: "Graham" <[email protected]>
Date: Wed, 01 Feb 2012 19:47:18 +0100
Talking of digging holes , in this case , digging in the noise , the OP32 mode should provide the best s/n with decode possible with over 50/55% of the data Its possible to run this on 500 , just sel
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00107.html (17,725 bytes)

8. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: qrss <[email protected]>
Date: Wed, 01 Feb 2012 17:59:56 +0000
not too unexpectedly , follows the usual pie fight If you see me joining the fun of the pie fight you know I must be feeling better. 'you cannot use on/off keying for a data mode' because ..... It wi
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00178.html (18,959 bytes)

9. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: qrss <[email protected]>
Date: Wed, 01 Feb 2012 10:29:26 +0000
But but but but, how do you know some QRS is a Beacon until you notice it and decode it. You Mal then normally post a comment about the 'time an band width waster'. I am pretty sure that until yester
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00191.html (16,179 bytes)

10. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: qrss <[email protected]>
Date: Wed, 01 Feb 2012 09:14:55 +0000
Hi Jim Was -31dB the limit of decoding for OPERA, ie could you take QRS3 to below copy ability yet get decodes from OPERA even if not 100% of the time. I am still searching for the reason for never a
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00315.html (12,219 bytes)

11. LF: Re: Opera v qrs evaluation (score: 1)
Author: "James Moritz" <[email protected]>
Date: Wed, 01 Feb 2012 22:30:44 +0100
Dear Eddie, LF Group, Was -31dB the limit of decoding for OPERA, ie could you take QRS3 to below copy ability yet get decodes from OPERA even if not 100% of the time. Overnight, your signal decoded 1
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00342.html (13,414 bytes)

12. RE: LF: Re: Opera v qrs evaluation (score: 1)
Author: Steinar Aanesland <[email protected]>
Date: Wed, 01 Feb 2012 22:06:11 +0100
Hummmmm, It looks like I have to tune my spam filter again.. la5vna S Cheating did you say ?? How did it help you ? It drove you underground amongst the gas es water utilities. Have you surfaced yet
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00356.html (15,746 bytes)

13. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 01 Feb 2012 18:46:57 +0100
CHEATING Hi Eddie et al, There is no doubt that the greatest value of modes like WSPR and OPERA (in addition to their ability to work with very weak signals) is that monitoring and reporting is autom
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00394.html (14,713 bytes)

14. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Wed, 1 Feb 2012 15:52:32 +0000
Hi Eddie et al, There is no doubt that the greatest value of modes like WSPR and OPERA (in addition to their ability to work with very weak signals) is that monitoring and reporting is automated and
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00475.html (15,197 bytes)

15. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: John Bruce McCreath <[email protected]>
Date: Wed, 1 Feb 2012 13:23:58 -0500
Perhaps the CW setting of the rig's mode switch could be re-labelled as PD (Primitive Digital) so that there's no apples / oranges issue. 73, J.B., VE3EAR LowFER Beacon "EAR" 188.830 kHz. QRSS30 EN9
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00492.html (10,678 bytes)

16. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 01 Feb 2012 11:06:12 +0100
I would say your qrs on 500 was heard/seen but no one could be bothered to report it. I personally do not report QRS beacon acty on any band. The majority of 500 Beacons are normal CW and I can hear
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00632.html (14,097 bytes)

17. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 01 Feb 2012 19:47:09 +0100
Cheating did you say ?? How did it help you ? It drove you underground amongst the gas es water utilities. Have you surfaced yet ? Keep smiling !! Hi Eddie et al, There is no doubt that the greatest
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00671.html (14,848 bytes)

18. Re: LF: Re: Opera v qrs evaluation (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 01 Feb 2012 10:11:31 +0100
QRSS does NOT get lost or missed in the noise as you suggest and one can always see at least part of the information trace, whereas Opera is all or nothing and I have noticed at times a TRACE but NO
/rsgb_lf_group-archives/html/rsgb_lf_group/2012-02/msg00688.html (12,071 bytes)


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