NOAA warning for rf communications

Fri Oct 24 13:49:27 UTC 2003

Well, this is more than you really wanted to know, but....

	ELV	Exremely Low 	dc - 3khz
	VLF	Very Low Freq	3khz - 30khz
	LF	Low Frequency	30khz - 300Khz
	MF	Medium		300Khz - 3Mhz
	HF	High		3mhz-30mhz
	VHF	Very High	30mhz-300mhz
	UHF	Ultra High	300-3Ghz
	SHF	Super High	3Ghz - 30 Ghz
	EHF	Extremely High	30Ghz - 300Ghz

Different folks put the breaks at slightly different places (the.g. the 
amatuer radio community puts the hf/vhf break @ 50Mhz and the MF/HF 
break @ 1.8Khz.

And, as a side note, I can't find the URL, but the US Cong is talking 
about pulling all the funding for the NASA space weather programs. Would 
mean less/no warning of this sort of stuff.

We now return you to our regularly scheduled off topic discussions

Komrade

Owen DeLong wrote:
> This will not likely affect point-to-point line-of-site communications 
> above 50Mhz.
> It will likely affect non-terrestrial communications and HF 
> communications depending
> on ionospheric reflection.
> 
> Owen
> 
> 
> --On Friday, October 24, 2003 07:15:29 AM -0400 Todd Vierling 
> <tv at duh.org> wrote:
> 
>>
>> On Thu, 23 Oct 2003, Roy wrote:
>>
>> : "Satellite and other spacecraft operations, power systems, high
>> : frequency communications, and navigation systems may experience
>> : disruptions over this two-week period."
>> :
>> : I think you will find that 802.11b and other terrestrial microwave LOS
>> : links don't meet any of those criteria and should be unaffected.
>>
>> "High frequency communications"?
>>
>> We *are* talking about multi-GHz frequencies here.
>>
>> -- 
>> -- Todd Vierling <tv at duh.org> <tv at pobox.com>
> 
> 
> 
> 