[amsat-bb] Re: LEO-satellites-antennas... ?

[Pavel Milanes Costa]

I Francesco et all, 

Tks for the tip.

I'm reading good stories about the AA2TX lindys on the internet...

I have the pdf files for it's construction and almost all the parts in my junk box... 

This will be a busy weekend... If I have anough material I will be building 2 of them for RH and LHCP..

73 and thanks again 

----- Mensaje original -----
De: Francesco Messineo <francesco.messineo at gmail.com>
Para: Pavel Milanes Costa <co7wt at frcuba.co.cu>
CC: AMSAT BB <amsat-bb at amsat.org>
Enviado: Tue, 07 Jan 2014 03:25:26 -0500 (CST)
Asunto: Re: [amsat-bb] Re: LEO-satellites-antennas... ?

Hi Pavel,

On Tue, Jan 7, 2014 at 2:15 AM, Pavel Milanes Costa <co7wt at frcuba.co.cu> wrote:
> Yes, Omni antenna in 70cm is my head ache now, no rotor yet (arduino is on
> his way...)
>
> I just build a QFH + 10dB preamp on the mast and a RTL...  testing it yet.
>
> I can copy FO-29 (Beacon and transponder), SO-67 beacon, just heard xatcobeo
> with short carrier by times...
>
> Al this above 30 degrees of elevation...  below 30 degrees nothing... hi hi
> hi..
>
> SO-50 is a no go even in a 70 degrees pass...
>
> I'm evaluating the parasit lidenblad or the turnstile moxons... any advice
> based on practice on this two and against QFH? better? worse? the same?
>

I've worked all the LEO sat available some years ago with a couple of
lindenblads from AA2TX project. Both with masthead preamp. Radio was
an FT-847.
I can remember working AO-07 (cw only) down to very low elevations,
FO-29 and the Indian satellite (sorry, can't remember the number right
now) where the easiest with some passes available also for SSB QSOs.
AO-27 was easy to work when traffic was not high, also SO-50 was
workable and of course the ISS trasponder.

73 de IZ8DWF