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On Tue, Jul 7, 2015 at 2:22 PM, ChemE Stewart <cheme...@gmail.com> wrote: > David, > > Of course the low frequency square pulses show up on receivers, that is > how pulsed doppler works! > > > http://www.rfcafe.com/references/articles/images/Signal-Analysis-Modern-Radar-R-S-6.jpg > > When it is on (every pulse) a weather radar puts out ~1,000,000 WATTS, (32 > billion watts EIRP) > > Stewart > > > On Tue, Jul 7, 2015 at 2:10 PM, David Roberson <dlrober...@aol.com> wrote: > >> Come on now Stewart. If you take the time to analyze the spectrum of a >> pulsed radar signal, you will find that all of the energy is contained in a >> location surrounding the carrier frequency. Also, how well do you think a >> dish radar antenna being feed by a bandwidth limited waveguide is going to >> radiate those 200 to 1000 Hz signals? If you can show me where any >> significant amount of that low frequency is radiated I will assume that you >> are knowledgeable in RF design. >> >> It is easy to convince people that know nothing about radio and radar >> systems to be concerned about unimportant issues. And, as everyone knows, >> statistics can prove just about anything that you wish to prove based upon >> the restrictions that are placed upon the data that is analyzed. >> >> The same type of reasoning is used to keep kids from being vaccinated or >> cellular antenna locations from being located in the ideal places. We need >> real science instead of variable statistics to settle these issues >> properly. >> >> Dave >> >> >> >> -----Original Message----- >> From: ChemE Stewart <cheme...@gmail.com> >> To: vortex-l <vortex-l@eskimo.com> >> Sent: Tue, Jul 7, 2015 1:53 pm >> Subject: Re: [Vo]:Possible cause for coral reefs dying... >> >> Dave, the pulse train is a square wave, with the "on" amplitude approx >> 900' long or longer depending upon duty cycle, bouncing between >> clouds/planes and the suface of the ocean >> >> Just one weather radar has an EIRP of 32 billion watts of power, which >> gets ducted and scattered by planes and the atmosphere, more during storms. >> >> Mildly shocking biology with every pulse, depending upon impedence >> >> Electricity can kill you in a nanosecond, each radar pulse is 1000 >> times longer that that in duration. >> >> Admit it, you sparkies screwed up :) >> >> Stewart >> >> >> >> >> >> >> >> >> >> On Tuesday, July 7, 2015, David Roberson < dlrober...@aol.com> wrote: >> >>> The radar pulse rate does not effect the penetration into the water. >>> In other words, the 200 to 1000 Hz rate is applied to the carrier and does >>> not independently appear anywhere else. >>> >>> Dave >>> >>> >>> -----Original Message----- >>> From: ChemE Stewart < cheme...@gmail.com> >>> To: vortex-l < vortex-l@eskimo.com> >>> Sent: Tue, Jul 7, 2015 8:12 am >>> Subject: Re: [Vo]:Possible cause for coral reefs dying... >>> >>> VLF <https://en.m.wikipedia.org/wiki/Very_low_frequency> radio waves >>> (3–30 kHz <https://en.m.wikipedia.org/wiki/Hertz>) can penetrate >>> seawater to a depth of approximately 20 meters. Hence a submarine at >>> shallow depth can use these frequencies. >>> >>> Most of the radars pulse at 200-1000 Hz. >>> >>> Most of the coral disease is in shallow water <20 meters >>> >>> On Tuesday, July 7, 2015, ChemE Stewart < cheme...@gmail.com> wrote: >>> >>>> Except low pulsed frequencies >>>> >>>> On Tuesday, July 7, 2015, James Bowery < jabow...@gmail.com> wrote: >>>> >>>>> >>>>> >>>>> On Tue, Jul 7, 2015 at 1:42 AM, MarkI-ZeroPoint < >>>>> zeropo...@charter.net> wrote: >>>>> >>>>>> This is primarily meant for fellow Vort, ChemEng (Stewart), but >>>>>> some others may have an interest… >>>>>> >>>>>> Stewart, I think I may have a cause for your hypothesis re: a link >>>>>> between our modern radar systems and the dying of coral reefs… >>>>>> >>>>> ... >>>>>> Time to break out the tin-foil hats??? >>>>>> >>>>> >>>>> No need. Salt water shields against EM penetration. >>>>> >>>> >
