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Re: OT 20M Moving QRM

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Ken G Kopp

Re: OT 20M Moving QRM

On Mar 3, 2016 2:41 PM, "Ken G Kopp" <[hidden email]> 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" <[hidden email]> 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" <[hidden email]>
>> > 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 [hidden email]
>> > >
>> > >
>> > >
>> > >
>> > > ______________________________________________________________
>> > > Elecraft mailing list
>> > > Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> > > Help: http://mailman.qth.net/mmfaq.htm
>> > > Post: mailto:[hidden email]
>> > >
>> > > This list hosted by: http://www.qsl.net
>> > > Please help support this email list: http://www.qsl.net/donate.html
>> > > Message delivered to [hidden email]
>> > >
>> > ______________________________________________________________
>> > Elecraft mailing list
>> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> > Help: http://mailman.qth.net/mmfaq.htm
>> > Post: mailto:[hidden email]
>> >
>> > This list hosted by: http://www.qsl.net
>> > Please help support this email list: http://www.qsl.net/donate.html
>> > Message delivered to [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
>

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NK7Z

Re: OT 20M Moving QRM

See my private email to you Ken...
--
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 14:44 -0700, Ken G Kopp wrote:

> On Mar 3, 2016 2:41 PM, "Ken G Kopp" <[hidden email]> 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" <[hidden email]> 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" <[hidden email]
> > > > >
> > > > 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   [hidden email]
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > _____________________________________________________________
> > > > > _
> > > > > Elecraft mailing list
> > > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > > > > Help: http://mailman.qth.net/mmfaq.htm
> > > > > Post: mailto:[hidden email]
> > > > >
> > > > > This list hosted by: http://www.qsl.net
> > > > > Please help support this email list: http://www.qsl.net/donat
> > > > > e.html
> > > > > Message delivered to [hidden email]
> > > > >
> > > > ______________________________________________________________
> > > > Elecraft mailing list
> > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > > > Help: http://mailman.qth.net/mmfaq.htm
> > > > Post: mailto:[hidden email]
> > > >
> > > > This list hosted by: http://www.qsl.net
> > > > Please help support this email list: http://www.qsl.net/donate.
> > > > html
> > > > Message delivered to [hidden email]
> > > ______________________________________________________________
> > > Elecraft mailing list
> > > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > > Help: http://mailman.qth.net/mmfaq.htm
> > > Post: mailto:[hidden email]
> > >
> > > This list hosted by: http://www.qsl.net
> > > Please help support this email list: http://www.qsl.net/donate.ht
> > > ml
> > > Message delivered to [hidden email]
> >
> >
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]