Posts by IK1IYU

Today I have measured with my spectrum analyzer the power output from the PLUTO with the QO-100 Linux transceiver software running on a Raspberry PI4.

Power setting on the software at 0 dbm, that should be the maximum power output from the Adalm Pluto.

It's not easy to determine the real peek power modulating in SSB, it would be usefull to have a TUNE command like in SDR-Console, however with a normal level of conversation I measured from -20 to -9 dbm on the analyzer, but never near 0 dbm or something more.

With the 800Hz tone the power output is exactly -32 dbm.

The level of this tone should be adjustable in some way, as it is practically useless as is, it's just too low.

Some time ago, with other softwares I measured around +10 dbm maximum power from the Pluto and in fact I had to put a 10dbm attenuator in front of my PA3AXA 20W RF Amplifier.

There are really +/- 20 dbm missing somewhere....

I will try to add a 20dbm "chinese" LNA SPF5189Z and see what happens.

73, Piero

Or a simple LTV-354T optocoupler soldered directly to the two pins GPO0 and GPO1.

I'm using this and it works.

73, Piero IK1IYU

Well, than should be around 72,000 Km....but I think Filippo, IZ5TEP, was asking about TERRESTRIAL DATV distance records.

Piero

Andreas, have a look to this thread: TCXO FOR PLUTO

and also this one: EXTERNAL CLOCK FOR ADALM PLUTO

73 , Piero

When there is a will, there is a way.

...or we could go all together a week in JP94 and see what's going on there.

OK, PA3FYM is right...it's a conspiracy.

I find crazy that he can receive his signal on the WebSDR, and no others can hear him...

Is your uplink on USB? Why not arrange a sked and make test with some of us, here or on whatsapp group?

Quote from PA3FYM

Yes .. how do you know ?

Because it happened to me, with a commercial preassembled WI-FI cable...SMA male at one end, reverse male SMA (no pin) at the other end...

Yes Andreas, you don't say anything about your cable, which type is exactly???

As noted before by G0MJW, I think that you have a reverse polarized SMA connector at the feed point....

Ask me how I know?....

Sure, but this is not the case.

Arecibo radiotelescope was deadly damaged by hurricane Maria.

Another sign of climate changes.

73 de Piero, IK1IYU

Yep!!! I was going to ask you if you reloaded the page into your browser after changing the settings...

OK, well done. Now you have to try to optimize the CBR setting for the best results.

See you on DATV,

73, Piero

You must use the RECORDING option and send UDP stream, than you can select the H.265 Nvidia (nvenc_hevc) encoder.

Here his the latest one:

https://www.f5uii.net/wp-content/uploads/2020/10/pluto.zip

73, Piero

Please don't break a mirror, or you will have to face seven years of bad luck!!! (as from an italian proverb)

You can use small pieces of kitchen aluminium foil instead.

Try to contact Sandor, DM4DS.

Hey! I was just asking informations....

I stay very cool and I HAVE ALREDY MADE MY DONATIONS to Evariste since the very beginning of the project.

I don't think to have been rude...I know that Evariste is working on another plutosdr implementation.

So you stay cool, and let me wait a reply from F5OEO or IS0GRB.

Thanks,

73 Piero

What happened to the development?

A week is passed without news and updates.

The site firmware.hackhamradio.com is down.

The "click&tune" for the Minitiouner Pro would be an important step forward...

Thanks,

73 Piero

OK!!! pluto.frm Version 2808 is now working fine on Narrow Band transponder reception also.

Thanks!

SDR Console v3.0.24; this is the waterfall with the latest pluto.frm

Simply patching the previous pluto.frm version is working ok, so I presume the latest pluto.frm is broken somewhere.