Pluto specifics
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Yes,
QO-100.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Conrad, PA5Y via groups.io <g0ruz@...>
Sent: 18 September 2022 12:10 To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> Subject: Re: [SDR-Radio] Pluto specifics Do you refer to QO-100 Simon? For any other application I beg to differ. Do the job? Depends on what the job is. I would not use a Pluto with an amplifier for any terrestrial use. The output is horrible.
73
Conrad PA5Y
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Simon Brown via groups.io
And let us not forget that Pluto is very much an educational device which we amateurs have adopted.
Beats me why people spend many thousands of euro on Kuhne transverters etc. when you can do the job for far less with a Pluto and SG Labs after blaster.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of jdow via groups.io <jdow@...>
The TL:DR is "USB2". The reason is the maximum bandwidth you can cram through a USB 2 connection. (AirSpy and AirSpy (R2) push the limits of USB 2 and sometimes get 10 MHz bandwidth without dropouts and without bitpacking. Without bitpacking 6 Msps is a better choice for reliability than trying to push it a little. NOTE that you likely will not get 6 Msps through an Ethernet connected Pluto. 100 MHz Ethernet is a little faster than 1/4th the speed of the USB2 connection. (A USB2 to 1 G ethernet adapter would probably make it to 6 Msps. I've never seen one.) {^_^}
On 20220910 01:30:42, sm6fhz wrote:
- + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems. -- - + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
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Conrad, PA5Y
OK then NP 😉
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Simon Brown via groups.io
Yes,
QO-100.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Conrad, PA5Y via groups.io <g0ruz@...>
Do you refer to QO-100 Simon? For any other application I beg to differ. Do the job? Depends on what the job is. I would not use a Pluto with an amplifier for any terrestrial use. The output is horrible.
73
Conrad PA5Y
From:
main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Simon Brown via groups.io
And let us not forget that Pluto is very much an educational device which we amateurs have adopted.
Beats me why people spend many thousands of euro on Kuhne transverters etc. when you can do the job for far less with a Pluto and SG Labs after blaster.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of jdow via groups.io <jdow@...>
The TL:DR is "USB2". The reason is the maximum bandwidth you can cram through a USB 2 connection. (AirSpy and AirSpy (R2) push the limits of USB 2 and sometimes get 10 MHz bandwidth without dropouts and without bitpacking. Without bitpacking 6 Msps is a better choice for reliability than trying to push it a little. NOTE that you likely will not get 6 Msps through an Ethernet connected Pluto. 100 MHz Ethernet is a little faster than 1/4th the speed of the USB2 connection. (A USB2 to 1 G ethernet adapter would probably make it to 6 Msps. I've never seen one.) {^_^}
On 20220910 01:30:42, sm6fhz wrote:
- + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
- + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
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Conrad, PA5Y
Now I will wait for sigi’s comments.
Conrad
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Conrad, PA5Y via groups.io
OK then NP 😉
From:
main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Simon Brown via groups.io
Yes,
QO-100.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Conrad, PA5Y via groups.io <g0ruz@...>
Do you refer to QO-100 Simon? For any other application I beg to differ. Do the job? Depends on what the job is. I would not use a Pluto with an amplifier for any terrestrial use. The output is horrible.
73
Conrad PA5Y
From:
main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
On Behalf Of Simon Brown via groups.io
And let us not forget that Pluto is very much an educational device which we amateurs have adopted.
Beats me why people spend many thousands of euro on Kuhne transverters etc. when you can do the job for far less with a Pluto and SG Labs after blaster.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of jdow via groups.io <jdow@...>
The TL:DR is "USB2". The reason is the maximum bandwidth you can cram through a USB 2 connection. (AirSpy and AirSpy (R2) push the limits of USB 2 and sometimes get 10 MHz bandwidth without dropouts and without bitpacking. Without bitpacking 6 Msps is a better choice for reliability than trying to push it a little. NOTE that you likely will not get 6 Msps through an Ethernet connected Pluto. 100 MHz Ethernet is a little faster than 1/4th the speed of the USB2 connection. (A USB2 to 1 G ethernet adapter would probably make it to 6 Msps. I've never seen one.) {^_^}
On 20220910 01:30:42, sm6fhz wrote:
- + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
- + - + - Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
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Siegfried Jackstien
Comments.. Hmmm The spurii you see depend a bit on the settings of the pluto... Or settings in sdr console... Pluto can be quite clean if you use a bit lower power and add another gain stage in between... And filters for the band you want to use it on.. In rx and tx path!! 50 or 60 db below main signal with all unwanted signals spurs etc... is not easy .... So.. Pluto is not to be used as a main station with a kw amp and big antennas... I bet other contesters will "want to kill you"... Grin... But with a much smaller amp (so those spurii are milliwatts or less)... Its ok i think... You should measure and carefully set the levels way way down And... Settings in console (example tx filter and drive settings)... Is the main thing that may produce a clean (or clean enough) signal... Or a very dirty signal with lots of ghost carriers.. Set power out to minus 20dbm and add a 20db stage behind (example a skyworks 65017). To get a quite clean signal..with 0 dbm Is much better as cranking up the pluto to 0 dbm Greetz sigi dg9bfc Am 18.09.2022 13:28 schrieb "Conrad, PA5Y" <g0ruz@...>:
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Playing with tomorrow's V3.2 release, I'm seeing 55dB down. May be able to improve on this...
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Siegfried Jackstien via groups.io <siegfried.jackstien@...>
Sent: 18 September 2022 19:22 To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> Subject: Re: [SDR-Radio] Pluto specifics Comments.. Hmmm
The spurii you see depend a bit on the settings of the pluto... Or settings in sdr console...
Pluto can be quite clean if you use a bit lower power and add another gain stage in between... And filters for the band you want to use it on.. In rx and tx path!!
50 or 60 db below main signal with all unwanted signals spurs etc... is not easy
.... So.. Pluto is not to be used as a main station with a kw amp and big antennas... I bet other contesters will "want to kill you"... Grin...
But with a much smaller amp (so those spurii are milliwatts or less)... Its ok i think... You should measure and carefully set the levels way way down
And... Settings in console (example tx filter and drive settings)... Is the main thing that may produce a clean (or clean enough) signal... Or a very dirty signal with lots of ghost carriers..
Set power out to minus 20dbm and add a 20db stage behind (example a skyworks 65017). To get a quite clean signal..with 0 dbm
Is much better as cranking up the pluto to 0 dbm
Greetz sigi dg9bfc
Am 18.09.2022 13:28 schrieb "Conrad, PA5Y" <g0ruz@...>:
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sm6fhz
Hi.
Is there a reason for Pluto not being supported in the Server? Neither USB nor Ethernet connection. 73 / Ingolf, SM6FHZ
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Yes,
At the moment it's difficult 🙂 .
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of sm6fhz via groups.io <ingolf.fhz@...>
Sent: 21 September 2022 18:16 To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> Subject: Re: [SDR-Radio] Pluto specifics Hi.
Is there a reason for Pluto not being supported in the Server? Neither USB nor Ethernet connection. 73 / Ingolf, SM6FHZ -- - + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
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sm6fhz
QSL Simon.
But not technically impossible? Then I understand. 73 / Ingolf, SM6FHZ
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Just some time. If / when I do it, I'll also support transmit via the server.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of sm6fhz via groups.io <ingolf.fhz@...>
Sent: 21 September 2022 19:02 To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> Subject: Re: [SDR-Radio] Pluto specifics QSL Simon.
But not technically impossible? Then I understand. 73 / Ingolf, SM6FHZ -- - + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
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sm6fhz
QSL.
Looking forward to when the server supports Tx as well. 73 / Ingolf
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There are two big programming steps:
Neither are rocket science, just lots of code to write, test etc. Technically very easy, just requires discipline.
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of sm6fhz via groups.io <ingolf.fhz@...>
Sent: 21 September 2022 19:24 To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> Subject: Re: [SDR-Radio] Pluto specifics QSL.
Looking forward to when the server supports Tx as well. 73 / Ingolf -- - + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
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