On Mar 3, 2016 2:41 PM, "Ken G Kopp" <[email protected]> wrote:
> Dave, > > You shouldn't make finite statements like this. There are some of us who > sometimes know better. > > Sounders -do- come in a -wide- variety of formats ... many are > purposefully wide and use variable sweep rates so as not to be so > "visible". Some move very slowly. It all depends on the kind of > information being sought. > > In a past life I lived / worked in the shadow of the NBS Labs in Boulder, > who operates one within the City of Boulder. There was another a mile away > from our house in Longmont. That one took about a minute to travel across > 160M. There is one at Weber State in northern Utah. There are hundreds > ... maybe thousands ... in operation all over the world. > > I also worked at CU's radio astronomy Lab and used a receiver that swept > 300 kHz to 300 MHz once every second 24/7, so we were all very familiar > with the many, many ionosondes. They make interesting ... and varied ... > traces on the chart recorder. > > BTW, if you know what to look for you can often see Jupiter's noise on > your P3. > > Then, there are the many wave radars, with several located in the > restrooms of Oregon's State Parks along the coast. ( We were hosts with > our RV parked about 100' from one.) They're about 50 kHz wide. Google > "Seasonde" for more info on these. > > 73 > > K0PP > On Mar 3, 2016 1:19 PM, "Dave Cole" <[email protected]> wrote: > >> That is not an ionosonde... They are a pure carrier moving at a steady >> speed, and they sweep MUCH faster than that. >> -- >> 73's, and thanks, >> Dave (NK7Z) >> >> For software/hardware reviews see: >> http://www.nk7z.net >> >> For MixW support see: >> https://groups.yahoo.com/neo/groups/mixw/info >> >> For SSTV help see: >> http://groups.yahoo.com/neo/groups/MM-SSTV/info >> >> >> On Thu, 2016-03-03 at 11:16 -0700, Ken G Kopp wrote: >> > Google "Ionospheric sounder". There are lots of them around the >> > world that >> > operate 24/7 and this may be one of them. >> > >> > 73 >> > >> > Ken Kopp - K0PP >> > On Mar 3, 2016 11:06 AM, "David Ahrendts" <[email protected]> >> > wrote: >> > >> > > Does anyone recognize this moving QRM? Last evening 6:30pm. Band is >> > > dead. >> > > Ambient noise pretty calm. But notice the slowly moving noise bumps >> > > on the >> > > K3S SVGA display. Might this be weather radar? >> > > https://vimeo.com/157616344 >> > > >> > > David A., KK6DA, LA >> > > >> > > >> > > >> > > David Ahrendts [email protected] >> > > >> > > >> > > >> > > >> > > ______________________________________________________________ >> > > Elecraft mailing list >> > > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > > Help: http://mailman.qth.net/mmfaq.htm >> > > Post: mailto:[email protected] >> > > >> > > This list hosted by: http://www.qsl.net >> > > Please help support this email list: http://www.qsl.net/donate.html >> > > Message delivered to [email protected] >> > > >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > Help: http://mailman.qth.net/mmfaq.htm >> > Post: mailto:[email protected] >> > >> > This list hosted by: http://www.qsl.net >> > Please help support this email list: http://www.qsl.net/donate.html >> > Message delivered to [email protected] >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [email protected] > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
