[amsat-bb] Re: Status DO-64?

[OZ1MY]

Hi Mak,
Yes I have made QSOs as well. Last time was 9th of September.
In the start of the life of the transponder it was much easier.

I do not know what is different - but one thing could be the
attitude of DO-64. If that is the course I would expect the
effect to change from orbit to orbit ?

One thing that is sure is that it is on the receive side.
Even without a preamplifier I can hear the noise floor
of the transponder.
May be something has gone wrong - only time will show.

Perhaps someone from Delfts knows ?

73 OZ1MY
Ib
----- Original Message ----- 
From: "SV1BSX" <sv1bsx at yahoo.gr>
To: <amsat-bb at amsat.org>
Sent: Saturday, September 27, 2008 1:04 PM
Subject: [amsat-bb] Re: Status DO-64?


> Hi Ib,
>
> tks for reply and informative note.  However I wondering about the DO-64 !
> If you "shoot" the satellite with 2x19 el and 70 W, I suppose the ERP from
> a similar system is 2-3 KWatts.
>  In case you had not easy access to satellite with this power, I wondering
> what is changed, as I remember that during the first weeks of
transponder's
> activation the satellite was accessible, even if somebody was using
> 200-300 Watts ERP (that is my max power and I managed a lot of QSOs).
>
>  Anyway, too bad if the satellite-uplink is not enough sensitive any
longer.
> I can't imagine  ....5-10 KW ERP uplink-power for a good enough access.
> This way is a non-usable object for the majority of amateur satellite
> operators.
>
> 73, Mak SV1BSX
>
>
>
>
> ----- Original Message ----- 
> From: "OZ1MY" <oz1my at privat.dk>
> To: "SV1BSX" <sv1bsx at yahoo.gr>; <amsat-bb at amsat.org>
> Cc: <rob at itr-datanet.com>
> Sent: Saturday, September 27, 2008 12:46 PM
> Subject: Re: [amsat-bb] Re: Status DO-64?
>
>
> > Hi Mak and Rob,
> > I just had a pass here over Copenhagen with
> > max elevation of 86 degrees.
> > I were able to hear myself using 70 W to my
> > normal 2x19 element antenna - but very faint.
> > I also heard a CW station.
> > Conclusion - it is on but very difficult to use unless
> > you have a lot of power for the uplink (more than I have).
> > Have a nice weekend all
> > 73 OZ1MY
> > Ib
> > ----- Original Message ----- 
> > From: "SV1BSX" <sv1bsx at yahoo.gr>
> > To: <amsat-bb at amsat.org>
> > Sent: Saturday, September 27, 2008 11:33 AM
> > Subject: [amsat-bb] Re: Status DO-64?
> >
> >
> >> Hi Rob,
> >>
> >> I agree.  Today morning I tried at 08:02 - 08:10Z,  Orbit #2252,
> > excellent
> >> pass
> >> for my location.
> >>
> >>  As you pointed out,  I also heard the beacon with a true 559 on CW (Hi
> >> Hi
> >> DELFI-C3),
> >> however it was impossible to access the transponder.
> >>
> >> So, your note is correct.
> >>
> >> 73, Mak SV1BSX
> >>
> >>
> >>
> >> ----- Original Message ----- 
> >> From: "Rob Hardenberg PE1ITR" <rob at itr-datanet.com>
> >> To: <amsat-bb at amsat.org>
> >> Sent: Saturday, September 27, 2008 11:13 AM
> >> Subject: [amsat-bb] Status DO-64?
> >>
> >>
> >> > Hi All,
> >> >
> >> > Er there station making qso's on DO-64? Last 2 weeks I tried serveal
> > times
> >> > but I can't hear my
> >> > signal on the transponder. It looks like the transponder receiver is
> >> > not
> >> > working. I can hear the
> >> > beacon and transponder noise very well.
> >> >
> >> >
> >> > 73 Rob PE1ITR
> >> > http://www.pe1itr.com
> >> >
> >> > _______________________________________________
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> >> > author.
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> >>
> >>
> >> _______________________________________________
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> >
> >
>
>
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