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Re: Ham shack satellite communications

From Gerhard Hoffmann <dk4xp@arcor.de>
Newsgroups sci.electronics.design
Subject Re: Ham shack satellite communications
Date 2026-09-17 00:22 +0200
Message-ID <118f4ql$apu1$1@solani.org> (permalink)
References (1 earlier) <118e621$a3qb$1@solani.org> <118e8sv$3f367$1@dont-email.me> <31olallgb3fuskvtji77dn64jolu7efsof@4ax.com> <118eql8$ajdt$1@solani.org> <u3ulal9lg701vo3oa4109di074jl2162pn@4ax.com>

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Am 16.09.26 um 22:18 schrieb john larkin:

> That pic is from 1946, and they used tubes and point-contact diode
> mixers. Mediocre noise figures. I guess the moon is actually a pretty
> big reflector.
> 
> Being spherical, it must scatter the reflection over half the
> universe.

Path loss is abt. 235 dB IIRC, give or take some minor deviations
for exact frequency and current moon position in the elliptical
orbit.

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Thread

Ham shack satellite communications "Don" <g@crcomp.net> - 2026-09-14 15:14 +0000
  Re: Ham shack satellite communications Cóilín Nioclásín Glostéir <thanks-to@Taf.com> - 2026-09-15 20:13 +0000
    Re: Ham shack satellite communications "Don" <g@crcomp.net> - 2026-09-15 21:40 +0000
      Re: Ham shack satellite communications Jan Panteltje <alien@comet.invalid> - 2026-09-16 07:45 +0000
        Re: Ham shack satellite communications "Don" <g@crcomp.net> - 2026-09-16 11:56 +0000
  Re: Ham shack satellite communications Don Y <blockedofcourse@foo.invalid> - 2026-09-16 05:54 -0700
  Re: Ham shack satellite communications Gerhard Hoffmann <dk4xp@arcor.de> - 2026-09-16 15:37 +0200
    Re: Ham shack satellite communications Gerhard Hoffmann <dk4xp@arcor.de> - 2026-09-16 15:42 +0200
    Re: Ham shack satellite communications Jan Panteltje <alien@comet.invalid> - 2026-09-16 14:25 +0000
      Re: Ham shack satellite communications Gerhard Hoffmann <dk4xp@arcor.de> - 2026-09-16 16:56 +0200
        Re: Ham shack satellite communications Jan Panteltje <alien@comet.invalid> - 2026-09-16 17:59 +0000
          Re: Ham shack satellite communications Gerhard Hoffmann <dk4xp@arcor.de> - 2026-09-16 20:17 +0200
      Re: Ham shack satellite communications john larkin <jl@htigct.com> - 2026-09-16 11:31 -0700
        Re: Ham shack satellite communications Gerhard Hoffmann <dk4xp@arcor.de> - 2026-09-16 21:28 +0200
          Re: Ham shack satellite communications "Don" <g@crcomp.net> - 2026-09-16 19:57 +0000
          Re: Ham shack satellite communications john larkin <jl@htigct.com> - 2026-09-16 13:18 -0700
            Re: Ham shack satellite communications Gerhard Hoffmann <dk4xp@arcor.de> - 2026-09-17 00:22 +0200
          Re: Ham shack satellite communications Jan Panteltje <alien@comet.invalid> - 2026-09-17 06:12 +0000
    Re: Ham shack satellite communications "Don" <g@crcomp.net> - 2026-09-16 14:54 +0000

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