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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+QRSS\/DFCW\s+transmission\s+with\s+a\s+Raspberry\s+Pi\s*$/: 14 ]

Total 14 documents matching your query.

1. LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: DK7FC <[email protected]>
Date: Fri, 09 Oct 2015 02:13:54 +0200
Hi all, I'm trying to find a (or the "best") software for the Raspberry Pi to transmit QRSS/DFCW on LF/MF. Since it's easily possible to transmit WSPR, it cannot be a problem to transmit QRSS. Which
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00074.html (10,132 bytes)

2. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: Dimitrios Tsifakis <[email protected]>
Date: Fri, 9 Oct 2015 11:24:08 +1100
Hi Stefan, if there is nothing else out there, I would be happy to write a simple c program to do this... 73, Dimitris VK2COW
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00075.html (11,305 bytes)

3. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: pws <[email protected]>
Date: Fri, 09 Oct 2015 15:45:23 +0200
Hi Stefan, On 09.10.2015 02:13, DK7FC wrote: ... I'm trying to find a (or the "best") software for the Raspberry Pi to transmit QRSS/DFCW on LF/MF. ... https://github.com/JamesP6000/PiCW Peter, df3lp
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00076.html (10,480 bytes)

4. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: DK7FC <[email protected]>
Date: Fri, 09 Oct 2015 23:23:16 +0200
Hi Peter, This is not suitable for DFCW. But QRSS would be fine as a first step. Do you have some experience with the software? Ist -w 0.0001 possible for QRSS? I can imagine that -w 1 is the lowest
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00081.html (10,995 bytes)

5. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: DK7FC <[email protected]>
Date: Sat, 10 Oct 2015 02:09:04 +0200
Hi Dimitris, Oh, you have a new callsign! Did you move your QH also? Well, i've searched a bit more and didn't find a suitable tool. Strange! So, if you really are an expert on programming, i would b
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00084.html (11,531 bytes)

6. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: Dimitrios Tsifakis <[email protected]>
Date: Sat, 10 Oct 2015 11:21:16 +1100
Hi Stefan, new callsign and new QTH indeed. I am now outside the city, the nearest house is about 300m away from mine. I also have some space, about 20 hectares, so expect more traffic on LF/MF :-) O
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00085.html (13,414 bytes)

7. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: DK7FC <[email protected]>
Date: Sat, 10 Oct 2015 17:40:49 +0200
Hi Dimitris, Am 10.10.2015 02:21, schrieb Dimitrios Tsifakis: Hi Stefan, new callsign and new QTH indeed. I am now outside the city, the nearest house is about 300m away from mine. I also have some s
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00087.html (15,052 bytes)

8. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: pws <[email protected]>
Date: Sat, 10 Oct 2015 19:50:38 +0200
Hi Stefan, "PiCW" has 2 nice features: - frequency calibration against NTP - soft keying; may be helpful if QRO... Since it's open source and well commented, it should be possible to modify it for du
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00089.html (11,155 bytes)

9. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: DK7FC <[email protected]>
Date: Sat, 10 Oct 2015 20:06:21 +0200
Hi Peter, Thanks. It may be helpful for Dimitris. I'm not a programmer... Am 10.10.2015 19:50, schrieb pws: - soft keying; may be helpful if QRO... Helpful to destroy a hard keying PA! => Unwanted. 7
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00090.html (10,447 bytes)

10. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: Dimitrios Tsifakis <[email protected]>
Date: Sun, 11 Oct 2015 07:58:48 +1100
Hi Stefan, all your good suggestions noted! Hmm, that's about 2 km of wire, my place is not big enough, but the people around me seem to be quite friendly, so I guess it's possible. What sort of wire
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00091.html (13,188 bytes)

11. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: DK7FC <[email protected]>
Date: Sun, 11 Oct 2015 02:18:43 +0200
Hi Dimitris, Am 10.10.2015 22:58, schrieb Dimitrios Tsifakis: BEV! That's it. Can you build a beverage antenna on your new QTH? Maybe 3 Lambda on 630m? :-) You know, i would do so! :-) Hmm, that's ab
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00092.html (13,408 bytes)

12. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: Dimitrios Tsifakis <[email protected]>
Date: Sun, 11 Oct 2015 16:46:50 +1100
Hi Stefan, By chance, and after I picker the COW callsign, I discovered that the QTH locator is the appropriate QF44ox :-) There is a lot to consider. I am still unpacking boxes here, so I have been
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00095.html (13,404 bytes)

13. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: Johan Bodin <[email protected]>
Date: Sun, 11 Oct 2015 14:04:18 +0200
Hi Dimitrios, Stefan, I did a little sunday afternoon hack, maybe you can use this to generate CW from ASCII: https://dl.dropboxusercontent.com/u/107227836/cwtx_c_code.zip
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00099.html (11,503 bytes)

14. Re: LF: QRSS/DFCW transmission with a Raspberry Pi (score: 1)
Author: DK7FC <[email protected]>
Date: Sun, 11 Oct 2015 21:20:28 +0200
Hi Dimitris, I have another idea: [ -F ] Factor . Factor is a Multiplier for the output frequency and DFCW shift. Factor = 1 if not set otherwise in the command line. You know, some PAs use an /2 or
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-10/msg00109.html (12,081 bytes)


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