Pluto : TX is stutters in DVB-S

DH1KP · Feb 19th 2020

I start with the Pluto in DVB-S but with a higher bit rate the pluto starts to produce intermittent transmissions.

The PC is an i7 4 x 3.6 Ghz 16mb Ram and WIN 10 64 bit.

I use DATV-Express for sending. The frequency of the Pluto is expanded and the 2nd core is activated. The Firmware is 0.31 from analog.com

Only with 250 or 500 kbps the transmission is OK.

The Pluto is connectet to the USB 3 port without an external power supply.

What is my Problem?

ik4idy · Feb 19th 2020

DATV EXPRESS is no more developed and it's unreliable.

For this reason to avoid waste of time, I strongly suggest to move to the OBS+Pluto with F5OEO last firmware.

In this case you have stop to fight with the old DATV Express.

73

DH1KP · Feb 19th 2020

Thank you for your answer Alessio.

I'll try it.

Thanks Klaus

EA2ARU · Apr 26th 2020

Good morning:

Is possible send DATV to QO-100 with Adalm-Pluto and the SG Labs 20 watts power amplifier? What is the recomended hadware for it?

73,s de Jabi, ea2aru.

DD0KP · Apr 26th 2020

EA2ARU yes it is, but you need a small PA in between the Pluto and the SG-Labs one.

DD4YR · Apr 26th 2020

Quote from EA2ARU

Is possible send DATV to QO-100 with Adalm-Pluto and the SG Labs 20 watts power amplifier? What is the recomended hadware for it?

No,

the SG Labs 20 Watt pa is not a DATV pa!

The operating point of the quiescent current must be increased for DATV for linearity. The power at DATV is then a maximum of 5 watts, you need a very large dish, 1.8m or larger to be able to transmit with small SR at all.

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