Pluto specifics


sm6fhz
 

Hi.
When I read the data for the Pluto and the heart of the Pluto, the AD9363 (alt. AD9364) I see a specified Bandwidth of maximum 20 MHz.

https://wiki.analog.com/university/tools/pluto/users/customizing#updating_to_the_ad9364

When I look at the settable Bandwidth in SDRC I see Bandwidths up to 6 MHz.
Can someone explain this. Is there a catch somewhere, I do not see.
It is only for my curiosity. Presently I do not have any use of larger Bandwidths except for using it to receive the full FM broadcast band.

73 / Ingolf, SM6FHZ


Simon Brown
 

Pluto only has USB 2, maximum bandwidth I've got without sample loss is 6 MHz.

6 MHz x 2 x 2 x 8 = 192 Msps sample rate.

Robin Getz hinted that a future Pluto may support USB 3.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of sm6fhz via groups.io <ingolf.fhz@...>
Sent: 10 September 2022 09:30
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: [SDR-Radio] Pluto specifics
 
Hi.
When I read the data for the Pluto and the heart of the Pluto, the AD9363 (alt. AD9364) I see a specified Bandwidth of maximum 20 MHz.

https://wiki.analog.com/university/tools/pluto/users/customizing#updating_to_the_ad9364

When I look at the settable Bandwidth in SDRC I see Bandwidths up to 6 MHz.
Can someone explain this. Is there a catch somewhere, I do not see.
It is only for my curiosity. Presently I do not have any use of larger Bandwidths except for using it to receive the full FM broadcast band.

73 / Ingolf, SM6FHZ

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sm6fhz
 

QSL Simon.
I see, that's the limitation.
I wonder if the "internal" Ethernet port on the board (not via the USB port) would support the full 20 MHz BW or a similar limitation is there as well.

BTW how's George?

73 / Ingolf


Simon Brown
 

George is great.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of sm6fhz via groups.io <ingolf.fhz@...>
Sent: 10 September 2022 12:52
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 
QSL Simon.
I see, that's the limitation.
I wonder if the "internal" Ethernet port on the board (not via the USB port) would support the full 20 MHz BW or a similar limitation is there as well.

BTW how's George?

73 / Ingolf

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sm6fhz
 

Good to hear that you get along well, Simon !
73 / Ingolf


Siegfried Jackstien
 

and a dogwalk gives the brain some time to clean up the buffers from programming :-)

have a nice weekend

dg9bfc sigi



Am 10.09.2022 um 17:23 schrieb Simon Brown:

George is great.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of sm6fhz via groups.io <ingolf.fhz@...>
Sent: 10 September 2022 12:52
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 
QSL Simon.
I see, that's the limitation.
I wonder if the "internal" Ethernet port on the board (not via the USB port) would support the full 20 MHz BW or a similar limitation is there as well.

BTW how's George?

73 / Ingolf

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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:

Hi.
When I read the data for the Pluto and the heart of the Pluto, the AD9363 (alt. AD9364) I see a specified Bandwidth of maximum 20 MHz.

https://wiki.analog.com/university/tools/pluto/users/customizing#updating_to_the_ad9364

When I look at the settable Bandwidth in SDRC I see Bandwidths up to 6 MHz.
Can someone explain this. Is there a catch somewhere, I do not see.
It is only for my curiosity. Presently I do not have any use of larger Bandwidths except for using it to receive the full FM broadcast band.

73 / Ingolf, SM6FHZ


Simon Brown
 

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@...>
Sent: 11 September 2022 06:52
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 

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:

Hi.
When I read the data for the Pluto and the heart of the Pluto, the AD9363 (alt. AD9364) I see a specified Bandwidth of maximum 20 MHz.

https://wiki.analog.com/university/tools/pluto/users/customizing#updating_to_the_ad9364

When I look at the settable Bandwidth in SDRC I see Bandwidths up to 6 MHz.
Can someone explain this. Is there a catch somewhere, I do not see.
It is only for my curiosity. Presently I do not have any use of larger Bandwidths except for using it to receive the full FM broadcast band.

73 / Ingolf, SM6FHZ

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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Roy VE7DH
 

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy


Siegfried Jackstien
 

you can drive with a ferrari to the shop and get some food .. or with a "volkswagen" ... both bring you there :-)

so ... you can use a pluto (plus an sg labs and a predriver) ... and an lnb for receive (at best with a poty feed)  ... that gets you on the air for about 5 to 700 bucks (with all needed parts included and depending what exactly you buy or build your own)

.. or you can buy "kuhne" (spending one grand for it .. plus the needed down mixer and feed another half grand) ... thats double to triple the above money!!

or buy the new "udl-16" from hilberling (over 2 grand) ... plus feed its about 4 to 5 times what a minimal setup with a pluto would cost


cause i homebrewed my amp and feed and modded the pluto on my own my first setup with a pluto was below 300 bucks ... but that also was a very cheap pluto (early bird price of 90 dollars if i remember right)

complete homebrewed amp (just bought a pcb from another ham and a 5 bucks chip on evilbay) and handcrafted feed (simon ... you know what i mean ... wink wink) :-)


so .. use a volkswagen (or a vauxhall or similar car) to drive to the shop (pluto) ... or a ferrari (kuhne)... or a bugatti (hilberling) ?!?


i prefer the cheap solution (pluto) ... the extra half a second delay is a thingy we have to live with when using an sdr (so listen duplex is mandatory to not doubling all the time)

but that is the only thing that "may" be a problem (listen listen listen!!)


pluto was mainly developed as a "toy for students" .. yes .. but with an external reference or a stable tcxo plus some cooling added it works very good on all vhf uhf (and above) bands and can become quite stable

you need some filtering and some amps for the bands you want to use it ... but you will me surprized how far the 4mw can bring you with a good antenna

just for testing i connected it to my dualband stacked vertical and i could lock into a repeater 30 miles away (yes with only plutos power used)


it also "hurts me" a bit if i hear somebody using up and downmixer (or a "groundstation" that is up and downmixer plus amp in one box) ... most of them do not have that high signal quality you can get with a proper setup with a pluto

or are drifting like a "70ies" vfo (if not using a gpsdo to lock it properly)


many times i can bet on what the other station is using just with watching how the signal looks and sounds like (call it a finger print of the signal) .. if he is using a gpsdo or not ... and if it is a pluto (or lime) ... or an analog rig with upmixer

and very often i see overdriven signals with a much toooooo wide signal (splattering 6 to 9 kc wide)


if somebody asks me how to get on the bird i tell them " three P" ... pluto, poty, poweramp :-)


have a nice sunday and take george out for a walk (maybe to ferry boat in for a cider?!?)


greetz sigi dg9bfc


ps my condolence for your old lady liz .. may she rest in peace ... hopefully the new king charles will do a similar if not better job


Am 11.09.2022 um 08:03 schrieb Simon Brown:

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@...>
Sent: 11 September 2022 06:52
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 

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:
Hi.
When I read the data for the Pluto and the heart of the Pluto, the AD9363 (alt. AD9364) I see a specified Bandwidth of maximum 20 MHz.

https://wiki.analog.com/university/tools/pluto/users/customizing#updating_to_the_ad9364

When I look at the settable Bandwidth in SDRC I see Bandwidths up to 6 MHz.
Can someone explain this. Is there a catch somewhere, I do not see.
It is only for my curiosity. Presently I do not have any use of larger Bandwidths except for using it to receive the full FM broadcast band.

73 / Ingolf, SM6FHZ

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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Simon Brown
 

6 MHz is the most I've achieved with USB2. USB2 can handle more but Pluto can't deliver.

After V3.2 is released we can try higher bandwidths but I'm sure it'll not work.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Roy VE7DH via groups.io <ve7bpb@...>
Sent: 11 September 2022 14:18
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 
The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy

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Larry Dodd
 

In theory a USB2 should be capable of 30 MHz. But with overhead in practice, and other real world detriments 15 MHz is more realistic. Folks that use USB hubs will see even less. Never use a hub if speed is important. Use the shortest possible quality USB cable in a direct on computer USB connector for best results. 
Larry K4LED 

_______________________

On Sep 11, 2022, at 9:18 AM, Roy VE7DH <ve7bpb@...> wrote:

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy


Simon Brown
 

I just checked - latest firmware, latest version of the Library and at more than 6MHz I lose too many samples.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Simon Brown via groups.io <simon@...>
Sent: 11 September 2022 14:24
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 
6 MHz is the most I've achieved with USB2. USB2 can handle more but Pluto can't deliver.

After V3.2 is released we can try higher bandwidths but I'm sure it'll not work.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Roy VE7DH via groups.io <ve7bpb@...>
Sent: 11 September 2022 14:18
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 
The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy

--
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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


jdow
 

10 Msps works for two reasons. First it is the only thing on the well designed USB2 port. Or second it is running in packed mode when reduces the byte count significantly. That will not work (well) with something that uses more than 12 bits per sample.

{^_^}

On 20220911 06:18:27, Roy VE7DH wrote:

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy


jdow
 

480 mega bits per second gets cut down considerably to maybe as high as 400 Mbps or lower. Depending on who is doing the counting (and the hardware and software) this translates into as low as 30 MBps (unusual) and as high as 45 MBps (almost unheard of). Each sample is a pair of 2 BYTE subsamples. To make 10 Msps for I/Q samples you must have the bus pushing 40 MBps with very high reliability, I've never achieved this with no dropouts on a USB2 port - because that is where I plug in the keyboard and mouse. They take a LOT of time on the bus for very low transfer rates.

{^_^}

On 20220911 06:34:36, Larry Dodd wrote:

In theory a USB2 should be capable of 30 MHz. But with overhead in practice, and other real world detriments 15 MHz is more realistic. Folks that use USB hubs will see even less. Never use a hub if speed is important. Use the shortest possible quality USB cable in a direct on computer USB connector for best results. 
Larry K4LED 

_______________________

On Sep 11, 2022, at 9:18 AM, Roy VE7DH <ve7bpb@...> wrote:

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy


Siegfried Jackstien
 

Just do not use mouse or kbd on the same port..


Am 11.09.2022 21:16 schrieb jdow <jdow@...>:

480 mega bits per second gets cut down considerably to maybe as high as 400 Mbps or lower. Depending on who is doing the counting (and the hardware and software) this translates into as low as 30 MBps (unusual) and as high as 45 MBps (almost unheard of). Each sample is a pair of 2 BYTE subsamples. To make 10 Msps for I/Q samples you must have the bus pushing 40 MBps with very high reliability, I've never achieved this with no dropouts on a USB2 port - because that is where I plug in the keyboard and mouse. They take a LOT of time on the bus for very low transfer rates.

{^_^}

On 20220911 06:34:36, Larry Dodd wrote:
In theory a USB2 should be capable of 30 MHz. But with overhead in practice, and other real world detriments 15 MHz is more realistic. Folks that use USB hubs will see even less. Never use a hub if speed is important. Use the shortest possible quality USB cable in a direct on computer USB connector for best results. 
Larry K4LED 

_______________________

On Sep 11, 2022, at 9:18 AM, Roy VE7DH <ve7bpb@...> wrote:

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy


Simon Brown
 

FWIW,

Was looking for info on the Pluto max. bandwidth and saw references around the web claiming a max. of 4 or 5 MHz.

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of jdow via groups.io <jdow@...>
Sent: 11 September 2022 20:16
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics
 

480 mega bits per second gets cut down considerably to maybe as high as 400 Mbps or lower. Depending on who is doing the counting (and the hardware and software) this translates into as low as 30 MBps (unusual) and as high as 45 MBps (almost unheard of). Each sample is a pair of 2 BYTE subsamples. To make 10 Msps for I/Q samples you must have the bus pushing 40 MBps with very high reliability, I've never achieved this with no dropouts on a USB2 port - because that is where I plug in the keyboard and mouse. They take a LOT of time on the bus for very low transfer rates.

{^_^}

On 20220911 06:34:36, Larry Dodd wrote:

In theory a USB2 should be capable of 30 MHz. But with overhead in practice, and other real world detriments 15 MHz is more realistic. Folks that use USB hubs will see even less. Never use a hub if speed is important. Use the shortest possible quality USB cable in a direct on computer USB connector for best results. 
Larry K4LED 

_______________________

On Sep 11, 2022, at 9:18 AM, Roy VE7DH <ve7bpb@...> wrote:

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy

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jdow
 

I presume you mean "on the same controller."

I never tried on a multi-controller USB2 card. I went USB 3 multi-controller and met a great deal of success with one device per controller chip. (Often the USB2 handling by USB3 controllers is better than that of native USB2 controllers, in my experience.)

{^_^}

On 20220911 13:23:50, Siegfried Jackstien wrote:

Just do not use mouse or kbd on the same port..


Am 11.09.2022 21:16 schrieb jdow <jdow@...>:

480 mega bits per second gets cut down considerably to maybe as high as 400 Mbps or lower. Depending on who is doing the counting (and the hardware and software) this translates into as low as 30 MBps (unusual) and as high as 45 MBps (almost unheard of). Each sample is a pair of 2 BYTE subsamples. To make 10 Msps for I/Q samples you must have the bus pushing 40 MBps with very high reliability, I've never achieved this with no dropouts on a USB2 port - because that is where I plug in the keyboard and mouse. They take a LOT of time on the bus for very low transfer rates.

{^_^}

On 20220911 06:34:36, Larry Dodd wrote:
In theory a USB2 should be capable of 30 MHz. But with overhead in practice, and other real world detriments 15 MHz is more realistic. Folks that use USB hubs will see even less. Never use a hub if speed is important. Use the shortest possible quality USB cable in a direct on computer USB connector for best results. 
Larry K4LED 

_______________________

On Sep 11, 2022, at 9:18 AM, Roy VE7DH <ve7bpb@...> wrote:

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy


Siegfried Jackstien
 

yes ... same controller (that may have a few usb ports connected to it)

dg9bfc sigi

Am 12.09.2022 um 09:03 schrieb jdow:

I presume you mean "on the same controller."

I never tried on a multi-controller USB2 card. I went USB 3 multi-controller and met a great deal of success with one device per controller chip. (Often the USB2 handling by USB3 controllers is better than that of native USB2 controllers, in my experience.)

{^_^}

On 20220911 13:23:50, Siegfried Jackstien wrote:
Just do not use mouse or kbd on the same port..


Am 11.09.2022 21:16 schrieb jdow <jdow@...>:

480 mega bits per second gets cut down considerably to maybe as high as 400 Mbps or lower. Depending on who is doing the counting (and the hardware and software) this translates into as low as 30 MBps (unusual) and as high as 45 MBps (almost unheard of). Each sample is a pair of 2 BYTE subsamples. To make 10 Msps for I/Q samples you must have the bus pushing 40 MBps with very high reliability, I've never achieved this with no dropouts on a USB2 port - because that is where I plug in the keyboard and mouse. They take a LOT of time on the bus for very low transfer rates.

{^_^}

On 20220911 06:34:36, Larry Dodd wrote:
In theory a USB2 should be capable of 30 MHz. But with overhead in practice, and other real world detriments 15 MHz is more realistic. Folks that use USB hubs will see even less. Never use a hub if speed is important. Use the shortest possible quality USB cable in a direct on computer USB connector for best results. 
Larry K4LED 

_______________________

On Sep 11, 2022, at 9:18 AM, Roy VE7DH <ve7bpb@...> wrote:

The question that occurs to me; if 6 mhz is the limit due to USB2 limitations, then why is there a 10Mhz setting when using my SDRPlay devices with USB2? In fact, I have been running one of my RSP2 units at 8 Mhz for years monitoring wspr frequencies from 160m to 40m without any difficulty using my first generation I7 computer.

regards, Roy


Conrad, PA5Y
 

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
Sent: 11 September 2022 08:03
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Pluto specifics

 

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@...>
Sent: 11 September 2022 06:52
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Pluto specifics

 

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:

Hi.
When I read the data for the Pluto and the heart of the Pluto, the AD9363 (alt. AD9364) I see a specified Bandwidth of maximum 20 MHz.

https://wiki.analog.com/university/tools/pluto/users/customizing#updating_to_the_ad9364

When I look at the settable Bandwidth in SDRC I see Bandwidths up to 6 MHz.
Can someone explain this. Is there a catch somewhere, I do not see.
It is only for my curiosity. Presently I do not have any use of larger Bandwidths except for using it to receive the full FM broadcast band.

73 / Ingolf, SM6FHZ


--

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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.