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18 results from messages in wsjtgroup

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  • Hi For a "lite version" give MSHV, by Christo LZ2HV, a try: http://www.lz2hv.host.sk/?q=node/6 73 Bo, OZ2M
    booz2m@... Feb 21
  • Hi Jean-marc 144,492 MHz is for WSPR beacons per IARU Region 1 Bandplan: http://iaru-r1.org/index.php?option=com_remository&Itemid=173&func=startdown&id=485 I.e. coordinated and 24 h operation. For normal/casual traffic another frequency ought to be used if you want to comply with the IARU Region 1 bandplan. 73 Bo, OZ2M
    booz2m@... Jul 15, 2014
  • Hi Just took a quick look at the Si4432datasheet. It has a resolution of 156 Hz/312 Hz. If this is true you cannot use it for WSPR directly. Far from actually. The phase noise is nothing to brag about. 73 Bo, OZ2M
    booz2m@... May 18, 2014
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  • Hi OK :-) Yes, the function WSPRMakeSymbols will do the trick for you. One note about H/W, in general, is that there are a lot of solutions out there already that are of dubious RF quality. Please keep in mind that we are radio amateurs and we have fellow hams that deserve to be able to use the bands too. We are subject to a lot of electro-SMOG ourselves. We shouldn't add to this...
    booz2m@... May 18, 2014
  • Hi Not sure what you mean with "two bit pattern" but here is source code in Atmel GCC for WSPR, PI4 and many other MGMs: http://rudius.net/oz2m/ngnb/software.htm 73 Bo, OZ2M
    booz2m@... May 18, 2014
  • Hi Joe Ah yes of cause! My mistake with both the way this group is setup and the new Neo design requires a lot of additional clicking compared to the old design. But thanks for reminding me and most importantly re-posting my message. Bo
    booz2m@... Jan 12, 2014
  • Hi Rick Could it be JT65B2 or JT65C2? 73 Bo, OZ2M
    booz2m Jun 29, 2013
  • Hi Philip I agree that global bandplands would be great. I don't know if work is ongoing on this matter. However, everybody wants development, but, nobody wants change :-) In some countries there are regulator defined bandplan(s), thus law or law like. In other countries, and I guess most, this is not the case, i.e. often IARU bandsplands are recommended but by nature they cannot...
    booz2m Jun 23, 2013
  • Hi Philip and the group When reading the bandplan don't forget to read the footnotes they are equally important. In this particular case footnote that leads to sections 11.1.1 and 11.1.2. Just because the transmission protocol is WSPR doesn't make it a coordinated beacon. For un-coordinated MGM transmissions there is 100 kHz assigned for the purpose from 50,3 MHz to 50,4...
    booz2m Jun 22, 2013
  • Hello Philip It is hard for me to tell the exact reason why but I will give it a go anyway it if is not pure overloading or a timing issue. You and Michel, F1ABL, are about 1300 km apart and with several major airports in between (BHX, LGW, LHR, CDG and ORY) thus with lots of aircraft scatter possibilities. This may have caused a lot of multi path on top of the direct signal. It...
    booz2m Jun 14, 2013