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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+ebnaut\s+\&\s+speclab\s+question\s*$/: 9 ]

Total 9 documents matching your query.

1. LF: ebnaut & speclab question (score: 1)
Author: Jacek Lipkowski <[email protected]>
Date: Sun, 26 Feb 2017 08:52:04 +0100 (CET)
Is it possible to decode an ebnaut transmission using only the sample rate correction using external VLF transmitters in Spectrum Lab? VY 73 Jacek / SQ5BPF
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00236.html (9,100 bytes)

2. Re: LF: ebnaut & speclab question (score: 1)
Author: DK7FC <[email protected]>
Date: Sun, 26 Feb 2017 10:08:32 +0100
Hi Jacek, Yes but then the transmitter must be available during the whole transmission time and a single soundcard glitch can cost you to decode, so it is a high risk to use that method. I would prin
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00237.html (10,174 bytes)

3. Re: LF: ebnaut & speclab question (score: 1)
Author: Paul Nicholson <[email protected]>
Date: Sun, 26 Feb 2017 09:20:34 +0000
I'm not sure. Maybe the frequency accuracy will be enough. But there will be no timestamping so the user will have to search for the time offset. Maybe not a problem when using long symbols. Sounds
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00238.html (10,644 bytes)

4. Re: LF: ebnaut & speclab question (score: 1)
Author: g3zjo <[email protected]>
Date: Sun, 26 Feb 2017 09:31:35 +0000
Many cheap GPS modules have an awful lot of jitter, not being designed for accurate 1PPS timing applications. I tried several with SpecLab and was not happy with the jitter performance. I have not tr
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00239.html (10,200 bytes)

5. Re: LF: ebnaut & speclab question (score: 1)
Author: Markus Vester <[email protected]>
Date: Sun, 26 Feb 2017 04:34:21 -0500
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00240.html (13,834 bytes)

6. Re: LF: ebnaut & speclab question (score: 1)
Author: Jacek Lipkowski <[email protected]>
Date: Sun, 26 Feb 2017 20:23:12 +0100 (CET)
Many cheap GPS modules have an awful lot of jitter, not being designed for accurate 1PPS timing applications. I tried several with SpecLab and was not happy with the jitter performance. I have not tr
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00242.html (11,146 bytes)

7. Re: LF: ebnaut & speclab question (score: 1)
Author: Jacek Lipkowski <[email protected]>
Date: Sun, 26 Feb 2017 20:40:49 +0100 (CET)
Hi Jacek, short answer: Yes (if you have a soundcard without dropouts on the input). It will work on many modern PC's. For example, RN3AUS has achieved successful decodesd from DK7FC using samplerat
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00243.html (10,357 bytes)

8. Re: LF: ebnaut & speclab question (score: 1)
Author: DK7FC <[email protected]>
Date: Sun, 26 Feb 2017 20:56:12 +0100
Hi Jacek, Yes, he picked up my signal with the help of GBZ one one of his two PCs. However the next thing is that GBZ of whatever reference must be available all the time, of course. Alex' spectrogra
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00244.html (11,616 bytes)

9. Re: LF: ebnaut & speclab question (score: 1)
Author: g3zjo <[email protected]>
Date: Sun, 26 Feb 2017 20:39:58 +0000
I have a uBlox UP501 it's not good but not as bad as some for jitter. it works very well with vlfrx-tools (haven't looked at the code, but probably Paul included some magic code to average out jitter
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-02/msg00245.html (11,018 bytes)


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