Thanks all for good suggestions.
I Will try all to find a good results. I start searching for solutions
because I saw so many good received from SSTV pictures from ISS this
days.
APRS frequency here is on 144.800MHz
BR Andy
On Mon, Dec 28, 2020 at 7:15 PM Pedro Converso <pconver(a)gmail.com>
wrote:
Try attenuate RF entry level on SDR Dongle
73, lu7abf, Pedro
On 12/28/20, Jean Marc Momple <jean.marc.momple(a)gmail.com> wrote:
Andy,
To filter at RF level between 145.800 and 145.825 MHz will require
a lot of
cavities and even if possible most probably the
attenuation would
make the
whole exercise useless.
May be at baseband level but I am not really competent to advise,
your
question is of interest and anyone who may help
there is most
welcome.
73
Jean Marc (3B8DU)
> On Dec 28, 2020, at 9:34 PM, Andy Brian <briaandy(a)gmail.com>
wrote:
>
> Hi,
>
> I received many pictures from ISS. I'm using RTL dongle 2832 with
SDR#
> program and
> MMSSTV with virtual cable and Orbitron.I found many rainbow lines
on
> pictures and I analysed that this is the case
of transmission
with APRS
> local stations around 5km away and 1mhz below
my receiving.
> Anyone have experirence of good filtering or set the SDR# program
to
> reduce the infulence from
> of transmitter which is far away from 145.8MHz but still in the
2MHz
> bandwidth of RTL2832?
>
> BR Andy
>
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