Re: [noaaport] [ldm-users] signal charts

My signal looks like it didn't drop like the others did??  Any ideas on why?

http://www.noaaport.co/

Mark

> >-----Original Message-----
> >From: noaaport-bounces@xxxxxxxxxxxxxxxx [mailto:noaaport-
> >bounces@xxxxxxxxxxxxxxxx] On Behalf Of Gilbert Sebenste
> >Sent: Monday, June 25, 2012 10:03 AM
> >To: Patrick L. Francis
> >Cc: ldm-users@xxxxxxxxxxxxxxxx; noaaport@xxxxxxxxxxxxxxxx
> >Subject: Re: [noaaport] [ldm-users] signal charts
> >
> >On Fri, 22 Jun 2012, Patrick L. Francis wrote:
> >
> >> One of these days I'll get around to putting up a dish here, but to
> >> improve c/n in the past I've used better cable from the lnb to the
> >> Novra than we are using now, a shorter distance from the lnb to the
> >> Novra, adding an appropriate attenuation sequence, keeping the Novra
> >> away from interference (such as setting it on top of a computer
> >etc..)
> >> ... it's not really that hard... besides G, your dish has always
> >been
> >> very reliable, as are you :o)
> >
> >I have a 75'+ run to the dish, and found that RG-11 cable with nice,
> >thick shielding on it does wonders. That alone reduced TI and signal
> >loss significantly, and with a near 3 dB gain in signal to boot!
> >
> >Things I have learned:
> >
> >On the mainland, a 3.7 meter dish MINIMUM is needed. 3.8 is better.
> >On the coasts and near the Canadian border, 4.5 meters is needed, and
> >the NWS already has that as their spec.
> >
> >A $49 LNB? It'll work. If you want it to always work when you need it
> >though...forget it. Me and my Norsat 3120 does just fine. Costs
> >somewhat more, but trust me, it is worth it.
> >
> >8VSB is a bear to work with. Be patient. Literally, being off by
> >millimeters can significantly reduce your signal strength.
> >It took me 4 times to adjust the dish and "dial it in" and get it as
> >close to exact as possible. But I don't have the greatest equipment.
> >If you have a "bird dog meter", or know someone who does, you can get
> >'er done better and faster...on the first try.
> >
> >If you want to have signal pad for heavy rain fade...AKA living in the
> >midwest and southern U.S. ...get yourself a 4.5 meter dish. Thank us
> >later. (Someone who has a 10 meter dish gets signal overload and had
> >to put an attenuator on it. Nice problem to have. :-)  )
> >
> >Even though it is a big chore to set up...if you use NOAAport for
> >serious classroom instruction, and cannot afford to be without
> >data...then get one. If you are satisfied with the IDD reliability, or
> >cannot afford a dish and related equipment, stick to what you have.
> >But, if it's not a cost issue (and get creative---many NPR stations
> >and campus cable TV head ends are abandoned with their big dishes!),
> >do it!
> >
> >> What I'm glad about is that now at least we can compare c/n to
> >> multiple sources (with hopefully more in the future) so that when
> >> things appear to go hinkie from time to time we don't need to worry
> >as
> >> much, and can simply see if others are experiencing similar issues
> >:o)
> >
> >Yessir! I like it. Thanks for the legwork, Patrick!
> >
> >Gilbert
> >
> >**********************************************************************
> >*********
> >Gilbert Sebenste
> >********
> >(My opinions only!)
> >******
> >Staff Meteorologist, Northern Illinois University
> >****
> >E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx
> >***
> >web: http://weather.admin.niu.edu
> >**
> >Twitter: http://www.twitter.com/NIU_Weather
> >**
> >Facebook: http://www.facebook.com/niu.weather
> >*
> >**********************************************************************
> >*********
> >
> >_______________________________________________
> >noaaport mailing list
> >noaaport@xxxxxxxxxxxxxxxx
> >For list information or to unsubscribe, visit:
> >http://www.unidata.ucar.edu/mailing_lists/



  • 2012 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the noaaport archives: