David Taylor wrote:
>Yes, but I often get asked "What do you do with the Raspberry Pi?" (as
>if there's just one!) so having the  Web page shows at least a few of
>the things which interested me.  I'm also following Es'hail 2, but dish
>space here is limited, so likely it will be the Web SDR (at Goonhilly,
>England) for me.  It's interesting to see people tracking the Doppler -
>at least during the transition.  There's a lot on Twitter, with some
>folks thinking of using the Raspberry Pi as a basis for transmitting.

I designed something like this:
 http://panteltje.com/pub/lnb_ref_buffers_added_circuit_diagram_IMG_6655.JPG
build:
 http://panteltje.com/pub/lnb_ref_with_switcher_IMG_6653.JPG
to make a stable reference for my LNB, I received a bit different LNB:
 http://panteltje.com/pub/octagon_LNB_crystal_removed_IMG_6546.JPG
and according to my calculations I need a 24 MHz reference,.
So this board makes 24 MHz locked to a  Rubidium ebay 10 MHz reference,
it uses a LMX2332 also from ebay.

Wrote some software for that LMX2332:
 http://www.panteltje.com/pub/LMX2332_test.c

Anyways I need some better weather to do some test with that modified LNB,
will probably wait until Es'Hail 2 is at its final position end of the month.

Think I can get SSB that way, and also ATV.

As far as transmission goes, as this project got delayed and delayed...
I do have   to stay on topic    designed an ATV transmitter modulator:

http://panteltje.com/pub/2.4Ghz_DVB-S_ATV_transmitter_test_setup_wide_IMG_4681.
JPG
 http://panteltje.com/panteltje/raspberry_pi_dvb-s_transmitter/
and bought a linear amplifier that should also work in that band:
 http://panteltje.com/pub/spectrian_2.4-GHz_linear_top_view_IMG_4576.JPG
but as things were delayed it is somewhere deep hidden in some cabinet...
We will see what happens.
I read https://forum.batc.org.uk/viewforum.php?f=101 every now and then...

For ATV transmit it seems I need a bigger dish, bit of a problem with wind,
for example we are in a storm now.. force 7.



>What matters mostly for your ADS-B antenna is height - how clear of
>local obstructions you can get.  As you note, both ADS-B and AIS
>decoding are ideal for the Raspberry Pi.

Yes, exactly, and for AIS (ships) when testing at home I am screened
on the sea-side by some high buildings. leaves me only the traffic on the land
side (canal).

I have a project going with my Hubsan 501S drone, powered via a thin coax,
with a slim-jim hanging as AIS antenna, that convert the AIS to an other band
and then a DVB-T stick in the raspi.

http://panteltje.com/pub/h501s_drone_remote_power_test_ground_control_1_IMG_627
6.JPG
Can keep it in the air indefinitely...:
 http://panteltje.com/pub/h501s_drone_remote_power_flight_test_1_IMG_6274.JPG
would make a nice high antenna...

Unfortunately the government decided to declare where I live a no-fly zone, am
close to a mil airport.
but there is new legislation coming, will see what it gives,





>You do sound to have similar interests (although off-topic here), so you
>may like to join the PlanePlotter and ShipPlotter groups, and perhaps
>make a contribution.

I will do some reading on those groups,.
I have many interests, and an electronics background
and normally hang out in sci.electronics.design, sometimes under aliases...


>   http://groups.io/g/planeplotter
>   http://groups.io/g/shipplotter
>
>73,
>GM8ARV
>--
>Web: http://www.satsignal.eu
>

--- SoupGate-Win32 v1.05