[amsat-bb] Re: Sat Dishes and P3E Q's

i8cvs domenico.i8cvs at tin.it
Wed Aug 11 15:55:53 PDT 2010

Hi Ron, KC2WQW

Both dishes are offset type dishes but before to tink about to use it for P3E I strongly recommend to carefully study the following one:


You have all the time to study the above wonderful pages from W1GHZ because nobody know exactly when P3E will be launched.

We can only hope...and pray.....for a launch probably between years 2012 or 2014 !

73" de 

i8CVS Domenico
  ----- Original Message ----- 
  From: Ron Overdrive 
  To: i8cvs 
  Sent: Wednesday, August 11, 2010 9:15 PM
  Subject: Re: [amsat-bb] Sat Dishes and P3E Q's

  Honestly I haven't measured the dishes nor know what you mean by prime focus or offset dish. Like I said I don't know much about parabolic dishes. All I know is they're not perfectly round, but more elliptical. Did a quick search online the smaller one that I believe is a Ku-Band dish looks exactly like this: http://www.amazon.com/DISH-Network-Satellite-Twin-Plus/dp/B001IQKY9M . The larger one is very wide and looks somewhat like this: http://www.electronicsparadise.com/n/Network_Switches/Dish_Network_Dish_500_Plus_Superdish_Complete_with_DP34_Switch_B001Q14KS0.htm

  ~73, KC2WQW

  On Wed, Aug 11, 2010 at 2:48 PM, i8cvs <domenico.i8cvs at tin.it> wrote:

    ----- Original Message -----
    From: "Ron Overdrive" <ronoverdrive at tehfurry.com>

    To: <amsat-bb at amsat.org>

    Sent: Wednesday, August 11, 2010 7:33 PM
    Subject: [amsat-bb] Sat Dishes and P3E Q's

    > I am curious how things are coming along with Phase 3 Express (P3E) as the
    > current official websites don't tell me much. The last bit of updates seem
    > to be from 2005 with an expected launch date of 2007 - 2008 which was 2 -
    > years ago. Since there's no info about it being active I'm guessing P3E
    > hasn't be launched yet.
    > The reason I'm asking is because I came across 2 Dish Network dishes that
    > friend had sitting in his junk room that he acquired from the previous
    > of his home. One is a smaller dish labeled Dish 500 which I'm guessing is
    > Ku-Band dish and a larger one labeled Dish Plus which I'm assuming is a
    > C-band dish. As you probably have guessed I want to use these for AMSAT
    > and I don't know much about parabolic dishes so all I have are guesses for
    > what bands they work on so if anyone can point me in the right direction
    > figure this out please do.

    Hi Ron,

    You don't mention wath is the diameter of your dishes and if they are prime
    focus dishes or offset dishes.

    By the way Ku-Band or C band dishes are good for P3E but in order to designe
    the type of feed it is necessary to know the dish focus /diameter i.e the
    F/D ratio.

    For 2400 MHz on OSCAR-13 and AO40 I have used with good results a 4"
    diameter prime focus dish with a F/D ratio of 0.45 and I plan to use the
    same dish for P3E

    73" de

    i8CVS Domenico

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