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helmsman wrote:
On Thu, 21 Aug 2003 19:35:31 -0600, JA wrote: On Thu, 21 Aug 2003 19:19:56 -0600, Michael wrote: Hi... The past few days have been VERY bad for me here in North NJ as far as DX'ing. The noise level is out of hand. "HSSSSSSSSS !!!!!!!!!!! " Is it local or somthing global ??? Anyone notice the same thing ??? Someone posted about solar max and min a bit ago. Someone else posted about aurora borealis. The point I guess is that some natural phenomena are messing up radio waves. This page ftp://ftp.sec.noaa.gov/pub/latest/wwv.txt will give you this: Product: Geophysical Alert Message wwv.txt Issued: 2003 Aug 22 1210 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Environment Center # # Geophysical Alert Message # Solar-terrestrial indices for 21 August follow. Solar flux 119 and mid-latitude A-index 51. The mid-latitude K-index at 1200 UTC on 22 August was 4 (47 nT). Space weather for the past 24 hours has been moderate. Geomagnetic storms reaching the G2 level occurred. Space weather for the next 24 hours is expected to be minor. Geomagnetic storms reaching the G1 level are expected. Yeah, but what does this mean? Could you explain? |
#2
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Geomagnetic storms reaching the G1 level are expected.
Yeah, but what does this mean? Could you explain? This means you need to catch up on your reading. :^] jw wb9uai |
#3
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The higher the SFI number, the better the propagation. Typical daily SFI
values have ranged from 67 (Jan 1997) to 370 (Jan 1991). We are now at SFI: 120 so propagation on the upper SW bands is poor -- above 10Mhz. The A-Index kinda sez the sun is messin with propagation The higher the A-index, the more unstable propagation becomes. Classification of A-indices is as follows: A0 - A7 = quiet A8 - A15 = unsettled A16 - A29 = active A30 - A49 = minor storm A50 - A99 = major storm A100 - A400 = severe storm So currently the A-Index is 41 -- not good For more -- See Propagation fundamentals at URL: http://ac6v.com/propagation.htm#HF http://www.sec.noaa.gov/info/FAQ.html#g4 http://www.trsc.com/ref_propagation.html This ones titled "how come i can't hear anything?" Gd DX et al Signal In The Noise ========================================= "J999w" wrote in message ... Geomagnetic storms reaching the G1 level are expected. Yeah, but what does this mean? Could you explain? This means you need to catch up on your reading. :^] jw wb9uai |
#4
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"Signal In The Noise" wrote in message news:dHS1b.14965$S_.10595@fed1read01... The higher the SFI number, the better the propagation. Typical daily SFI values have ranged from 67 (Jan 1997) to 370 (Jan 1991). We are now at SFI: 120 so propagation on the upper SW bands is poor -- above 10Mhz. I can testify to the above ten Mhz thing. I had switched to getting BBC's European feed on 12095 Khz and now have switched back to 5975. Oh well, they are out there somewhere. The A-Index kinda sez the sun is messin with propagation The higher the A-index, the more unstable propagation becomes. Classification of A-indices is as follows: A0 - A7 = quiet A8 - A15 = unsettled A16 - A29 = active A30 - A49 = minor storm A50 - A99 = major storm A100 - A400 = severe storm So currently the A-Index is 41 -- not good For more -- See Propagation fundamentals at URL: http://ac6v.com/propagation.htm#HF http://www.sec.noaa.gov/info/FAQ.html#g4 http://www.trsc.com/ref_propagation.html This ones titled "how come i can't hear anything?" Gd DX et al Signal In The Noise ========================================= "J999w" wrote in message ... Geomagnetic storms reaching the G1 level are expected. Yeah, but what does this mean? Could you explain? This means you need to catch up on your reading. :^] jw wb9uai --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.512 / Virus Database: 309 - Release Date: 8/19/2003 |
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