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2.4 GHz DVB-S transmitter test setup working

Started by Jan Panteltje December 10, 2014
2.4 GHz DVB-S transmitter test setup working
 http://panteltje.com/pub/DVB-S_the_way_I_like_it_IMG_4680.JPG

 http://panteltje.com/pub/2.4Ghz_DVB-S_ATV_transmitter_test_setup_wide_IMG_4681.JPG
The whole test setup is remotely controlled via ethernet  (white lead).
I took the ADF4350 test code I wrote and integrated it with the ts2iq program I wrote earlier
 ( http://panteltje.com/panteltje/raspberry_pi_dvb-s_transmitter/ ),
so now the ADF4350 board (foreground) provides 2.4 GHz to the AD8346 QAM modulator on the board north of it,
the VCOs are now disabled on that board.
What comes out is mixed down in the black box on the right,
and fed into a long coax that goes to the PC where the first picture is taken from.

Will try to fit that ADF4350 board on the big eurocard,
else we need a separate card..

A few simple command line options in ts2iq_pi allows now to set any frequency
between 138 MHz and 4.4 GHz, as well ar 4 output levels in dBm.
I already have the driver amp and a 70 W power amp...
The rest is boxes.

The other stuff on the table is either used, or was helpful in testing this.
:-)

On the spectrum analyzer things look good too, and note the QAM constellation in the first picture.

The Raspberry generates all signals, video stream is on SDcard, it controls the ADF4350 too.
Symbolrate 1500.. FEC 1/2.

Jan Panteltje <panteltje@yahoo.com> wrote:
> A few simple command line options in ts2iq_pi allows now to set any > frequency between 138 MHz and 4.4 GHz, as well ar 4 output levels in > dBm. > I already have the driver amp and a 70 W power amp... > The rest is boxes.
When OPTA^WACM calls, I will tell them I've never heard of you. :D Protip: Buy a boat... Captain Midnight got caught partly because he was at a fixed location. Matt Roberds
On Wednesday, December 10, 2014 3:06:09 PM UTC+1, Jan Panteltje wrote:
> 2.4 GHz DVB-S transmitter test setup working > http://panteltje.com/pub/DVB-S_the_way_I_like_it_IMG_4680.JPG > > http://panteltje.com/pub/2.4Ghz_DVB-S_ATV_transmitter_test_setup_wide_IMG_4681.JPG > The whole test setup is remotely controlled via ethernet (white lead). > I took the ADF4350 test code I wrote and integrated it with the ts2iq program I wrote earlier > ( http://panteltje.com/panteltje/raspberry_pi_dvb-s_transmitter/ ), > so now the ADF4350 board (foreground) provides 2.4 GHz to the AD8346 QAM modulator on the board north of it, > the VCOs are now disabled on that board. > What comes out is mixed down in the black box on the right, > and fed into a long coax that goes to the PC where the first picture is taken from. > > Will try to fit that ADF4350 board on the big eurocard, > else we need a separate card.. > > A few simple command line options in ts2iq_pi allows now to set any frequency > between 138 MHz and 4.4 GHz, as well ar 4 output levels in dBm. > I already have the driver amp and a 70 W power amp... > The rest is boxes. > > The other stuff on the table is either used, or was helpful in testing this. > :-) > > On the spectrum analyzer things look good too, and note the QAM constellation in the first picture. > > The Raspberry generates all signals, video stream is on SDcard, it controls the ADF4350 too. > Symbolrate 1500.. FEC 1/2.
What is the use of this transmitter? (for surveliance, I just use a IP camera and my NAS) Cheers Klaus
mroberds@att.net wrote:
> > Jan Panteltje <panteltje@yahoo.com> wrote: > > A few simple command line options in ts2iq_pi allows now to set any > > frequency between 138 MHz and 4.4 GHz, as well ar 4 output levels in > > dBm. > > I already have the driver amp and a 70 W power amp... > > The rest is boxes. > > When OPTA^WACM calls, I will tell them I've never heard of you. :D > > Protip: Buy a boat... Captain Midnight got caught partly because he was > at a fixed location. > > Matt Roberds
Yes. In a bar, bragging while the feds were sitting near him. The uplink he used is sitting abandoned about 15 minutes from here. He was caught because there were only a few uplinks not in use at that time, and by the FCC engineers identifying the character generator he used. Then it was a simple matter of tailing him, till he admitted guilt. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge.
On a sunny day (Wed, 10 Dec 2014 13:23:37 -0800 (PST)) it happened Klaus
Kragelund <klauskvik@hotmail.com> wrote in
<2e224442-4427-49f8-82f1-99c48a494945@googlegroups.com>:

>On Wednesday, December 10, 2014 3:06:09 PM UTC+1, Jan Panteltje wrote: >> 2.4 GHz DVB-S transmitter test setup working >> http://panteltje.com/pub/DVB-S_the_way_I_like_it_IMG_4680.JPG >> >> http://panteltje.com/pub/2.4Ghz_DVB-S_ATV_transmitter_test_setup_wide_IMG_4681.JPG >> The whole test setup is remotely controlled via ethernet (white lead). >> I took the ADF4350 test code I wrote and integrated it with the ts2iq program I wrote earlier >> ( http://panteltje.com/panteltje/raspberry_pi_dvb-s_transmitter/ ), >> so now the ADF4350 board (foreground) provides 2.4 GHz to the AD8346 QAM modulator on the board north of it, >> the VCOs are now disabled on that board. >> What comes out is mixed down in the black box on the right, >> and fed into a long coax that goes to the PC where the first picture is taken from. >> >> Will try to fit that ADF4350 board on the big eurocard, >> else we need a separate card.. >> >> A few simple command line options in ts2iq_pi allows now to set any frequency >> between 138 MHz and 4.4 GHz, as well ar 4 output levels in dBm. >> I already have the driver amp and a 70 W power amp... >> The rest is boxes. >> >> The other stuff on the table is either used, or was helpful in testing this. >> :-) >> >> On the spectrum analyzer things look good too, and note the QAM constellation in the first picture. >> >> The Raspberry generates all signals, video stream is on SDcard, it controls the ADF4350 too. >> Symbolrate 1500.. FEC 1/2. > >What is the use of this transmitter?
It will be for DVB-S ATV. And the 2.4 GHz mode will be for the Qatar ATV sat to be lauched in 2016. Qatar geostationay satellite: Linear transponder 2400.050 - 2400.300 MHz Uplink 10489.550 - 10489.800 MHz Downlink Wideband digital transponder 2401.5 - 2409.5 MHz Uplink 10491.0 - 10499.0 MHz Downlink The insane replies by the usual clueless lurkers here best be ignored. It is 100% legal, I have the licenses. But it seems they do not.