STEMlab 122.88-16 SDR

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DH1KLM
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STEMlab 122.88-16 SDR

Beitrag von DH1KLM » Fr Nov 23, 2018 10:59 am


73 de Sigi, DH1KLM

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df5fh
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Re: STEMlab 122.88-16 SDR

Beitrag von df5fh » Di Apr 09, 2019 12:56 pm


Hi dear Red Pitaya fans,
and hi Pavel, what is your opignion regarding the new device ? I expect that it will dure some time until your great software packages are available for the new machine ? I hope I was not too blue-eyed to pre-order one exemplar at redpitaya.com :D

Vy 73
Henning
DF5FH

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DH1KLM
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Re: STEMlab 122.88-16 SDR

Beitrag von DH1KLM » Di Apr 09, 2019 8:44 pm


73 de Sigi, DH1KLM

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df5fh
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Re: STEMlab 122.88-16 SDR

Beitrag von df5fh » Di Apr 09, 2019 9:12 pm


Oooops ... danke
Zuletzt geändert von df5fh am Di Apr 09, 2019 9:17 pm, insgesamt 2-mal geändert.

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DC9OE
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Re: STEMlab 122.88-16 SDR

Beitrag von DC9OE » Mi Apr 10, 2019 5:16 pm


.... unter viewtopic.php?f=76&t=405 findest Du ein paar Messdaten.

Und wir haben den STEMlab 16 auch schon in einem konkreten Gerät im Einsatz.
IMG_8275.JPG
73, Edwin - DC9OE

PS. das einzige was noch nicht geht ist der VNA... für Heft 5 der CQDL habe ich einen Artikel dazu geschrieben.

Baugruppen und Zubehör gibts unter: www.smartradioconcepts.com

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pavel
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Re: STEMlab 122.88-16 SDR

Beitrag von pavel » Mi Apr 10, 2019 8:48 pm


PS. das einzige was noch nicht geht ist der VNA...
Hello Edwin,

Have you tried the latest release from the following link?

https://github.com/pavel-demin/stemlab- ... g/20190403

If I'm not mistaken, the VNA application from this release should work properly.

If it doesn't work for you, then please provide more details of what exactly doesn't work.

I received the final version of the new board only two weeks ago. Once I received it, I was able to proceed with the testing of my applications. There will be probably more releases with various improvements.

Best regards,

Pavel

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DC9OE
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Re: STEMlab 122.88-16 SDR

Beitrag von DC9OE » Do Apr 11, 2019 3:56 pm


Hi Pavel, many thanks I will try and let you know.
Markus and I tested on Tuesday, but may be we have not used the latest version.

Kind regards, Edwin

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Re: STEMlab 122.88-16 SDR

Beitrag von df5fh » Do Apr 11, 2019 5:11 pm


Das ist ja ein Ding ... da glaube ich, alle sind noch in der preorder-Liste von RedPitaya.com, dabei hat Pavel schon alles fertig. Bin gespannt, wie lange ich noch warten muss :)

73, Henning

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Re: STEMlab 122.88-16 SDR

Beitrag von DK7XL » Do Apr 11, 2019 5:40 pm


Pavel, Edwin,

the most recent update on FW for 122.88-16 tells that TX output level has been increased for compatibility reasons to HPSDR transceiver. What is the new level now?

Thanks and 73s,

Klaus

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pavel
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Re: STEMlab 122.88-16 SDR

Beitrag von pavel » Do Apr 11, 2019 5:58 pm


DK7XL hat geschrieben:
Do Apr 11, 2019 5:40 pm
the most recent update on FW for 122.88-16 tells that TX output level has been increased for compatibility reasons to HPSDR transceiver. What is the new level now?
"SDR transceiver compatible with HPSDR" is the name of the application for the Red Pitaya board. So, "compatible" isn't the reason for this update.

The output signal levels in the latest version are now the maximal levels that the new board can output.

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DC9OE
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Re: STEMlab 122.88-16 SDR

Beitrag von DC9OE » Do Apr 11, 2019 7:27 pm


... just a little addition for clarity.
Pavels SW allows Stemlab 16 to provide the maximum output feasible.
This is about 2,7dBm on 10MHz down to 0,8dBm on 50MHz.
(reason ist that there is no amplifier in Stemlab 16)

This is less than what Stemlab 14 provides (about 9,5dBm on 10MHz and about 6,5dBm on 50 MHz)

The Problem for people using HPSDR is in some limitations of the TX setup.
In this setup a dB Level can be provided to match changes in driver levels.
The problem is that this setup is limited to a minimum of 38,8dB - which is probably not enough in case you want to replace Stemlab 14 by Stemlab 16.

Therefore this either requires a modification or alternatively you can use our Charly 25 edition of Power SDR.
This version is backward compatible to everything else but does not have the limitations above. TX levels can be set to 0dB in this SW.

We have put a link to our version of the SW here: www.smartradioconcepts.com

73,Edwin - DC9OE

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Re: STEMlab 122.88-16 SDR

Beitrag von DK5QH » Do Apr 11, 2019 7:47 pm


Hi Edwin,
I find the link under smartradioconcepts, but somehow I'm doing anything wrong. The link refers to outdated github entries. The installable release is named Public Release Version: 2017-07-20 - Commit: 7989e51 and is dated 2/2018. Similar situation for Red Pitaya software.
Thanks in advance for clarification
Ernst DK5QH

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DC9OE
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Re: STEMlab 122.88-16 SDR

Beitrag von DC9OE » Do Apr 11, 2019 7:59 pm


Ernst, sorry for this , I will check with Markus and make sure the links are correct,

73,Edwin

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DC9OE
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Re: STEMlab 122.88-16 SDR

Beitrag von DC9OE » Do Apr 11, 2019 8:10 pm


Ernst I have just checked myself, if you use the link in the shop you end on this page:
Powersdr1.JPG
If you go under BETAS & RELEASES, the latest version in there is this one:
Powersdr2.JPG
This is from February and it is a Beta of course as we are still busy optimizing code for Charly 25 Boards and STEMlab 16.

Hope this helps.

73,Edwin

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Re: STEMlab 122.88-16 SDR

Beitrag von DK5QH » Do Apr 11, 2019 9:05 pm


Hi Edwin,
thanks a lot for your quick information. I have now found the files provided 16 days ago.

In addition, I would like to suggest at least minimal documentation of content and status of the individual packages. This also makes sense because Github is used in this case "a little different" than one is used to from Open Source projects.

73s Ernst

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DC9OE
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Re: STEMlab 122.88-16 SDR

Beitrag von DC9OE » Fr Apr 12, 2019 12:34 pm


Hi Ernst,
thanks and yes I agree we have a lot of documentation to do, both on HW and SW and the plan is of course to do it.
Problem is time - we are always in conflict between development (and now also production) and documentation...

One day we will get there hopefully by the time of Ham Radio ....

73,Edwin

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DC9OE
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Re: STEMlab 122.88-16 SDR

Beitrag von DC9OE » Sa Apr 13, 2019 6:49 pm


.. kurzer Hinweis - mit der neuesten Firmware Version von Pavel funktioniert der VNA wieder.

Details finden sich unter CHARLY 25.

73,Edwin

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Yevgeni
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Re: STEMlab 122.88-16 SDR

Beitrag von Yevgeni » Do Apr 18, 2019 12:29 am


Hello.
Meine ersten Proben RP 16 BIt.
https://www.dropbox.com/sh/a1yecde4hs91 ... g.pdf?dl=1
73 de RZ3QS

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Yevgeni
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Re: STEMlab 122.88-16 SDR

Beitrag von Yevgeni » Do Apr 18, 2019 12:30 am


Hello.
Meine ersten Proben RP 16 BIt.
https://www.dropbox.com/sh/a1yecde4hs91 ... g.pdf?dl=1
73 de RZ3QS

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Yevgeni
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Re: STEMlab 122.88-16 SDR

Beitrag von Yevgeni » Do Apr 18, 2019 12:31 am


Hello.
Meine ersten Proben RP 16 BIt.
https://www.dropbox.com/sh/a1yecde4hs91 ... g.pdf?dl=1
73 de RZ3QS

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