Fishball, Fishball 7020 or LibreSDR

[MAR1TO15]

I recently ordered a Fishball but I see that with the Black Friday offers they all dropped in price, they recommend that I buy one of the best or I keep the one I currently have that cost me about $90 or I go for a LibreSDR that is currently for about $130, I come from an RTL-SDR and I wanted to give the balance to a better SDR

[MAR1TO15]

I was thinking of using it mainly to receive satellites, analyze filters that I manufacture with SATSAGEN, a little wireless controllers, etc.

[F5OEO]

LibreSDR has still some issue, mainly on clock input. Furthermore, LibreSDR (surely ZinqSDR) clone is not so good. Try a fishball , if possible with 7020.

[MAR1TO15]

A Fishball is on its way, is it worth returning it and ordering one with the 7020?

[F5OEO]

7020 is for future developments...7010 is OK for now.

[MAR1TO15]

I was looking at the schematics that the manufacturer of my board provided me and I see that the input baluns are TC1-1-13M + that have an S11 from 3db to 3ghz, should I change them for some TCM1-63AX+?

[F5OEO]

Have you got it from opensourcesdrlab ? If yes, can you give a link to schematic ?

[BeckGyver]

I have a download link for the resources containing the schematic.
https://workupload.com/archive/kc2v7ryVZZ

Not sure how long it will be available but worked for me today.
I have one available if we need testing.

[MAR1TO15]

I got it at HamGeek store, I can send you the PDF with the schematics if you want

[F5OEO]

Have already HamGeek documentation...opensdrlab have added some gpio on it. I look for the documentation as they don't asnwer me yet.

[MAR1TO15]

Does the Fishball 7020 currently have any advantage over the normal one?

[F5OEO]

7020 has plenty of place for DSP. Right now, no firmware use this extra size, but will come soon.

[MAR1TO15]

Will I be able to get the same bandwidth with my Fishball? The 14MSPS over USB C?

[F5OEO]

USBC is not USB3...So no ! You have to gow with GigabitEthernet !

[MAR1TO15]

I saw that Ethernet could reach up to 45 MHz. Is this not possible with the Fishball?

[F5OEO]

CS8 with overclock

[MAR1TO15]

What is CS8?

[plantjes1]

I can't get my Fishball to work via Gigabit lan but it works great via USB-C
Only use with sdr-TV as i can't find the DT in MQTT struckture
So DATV -RED and DATV Easy can't find the fishball..

Advice?

[F5OEO]

CS8 is Complex Short 8 bits : reduce signal dynamic but allow *2 bandwidth (samplerate) Le mer. 26 nov. 2025 à 22:24, MAR1TO15 ***@***.***> a écrit :

…

What is CS8? — Reply to this email directly, view it on GitHub <#194 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABPHORXEXOLKX7SAZ6DEQVD36YLBPAVCNFSM6AAAAACNER7GR2VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMBZGA3TCMY> . You are receiving this because you commented.Message ID: ***@***.***>

[Bourascom23]

Hi @F5OEO ,

I’ve found another SDR variant and I’d like to know your opinion before buying it.
It uses a Zynq-7020 platform and claims to include a true AD9361 (with aluminium case, GPIO headers and PA):

OpenSourceSDRLab 7020 SDR (AD9361/AD9363)
https://opensourcesdrlab.com/products/opensourcesdrlab-7020-sdr-ad9361-ad9363-development-board-with-pa-for-pluto-matlab-software-defined-radio?VariantsId=10362

Also — I saw it (or a very similar listing) on AliExpress:
https://ar.aliexpress.com/item/1005010385325179.html?spm=a2g0o.imagesearchproductlist.main.1.70e4clwFclwFXU&algo_pvid=0d7a1402-1059-4b40-afb2-14a9c4227502&algo_exp_id=0d7a1402-1059-4b40-afb2-14a9c4227502&pdp_ext_f=%7B%22order%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21DZD%2125925.50%2119444.12%21%21%211280.00%21960.00%21%40211b816617644322852171423ebd21%2112000052228635963%21sea%21DZ%210%21ABX%211%210%21n_tag%3A-29910%3Bd%3A6fe6019%3Bm03_new_user%3A-29895&curPageLogUid=JNaEyGTUqgAA&utparam-url=scene%3Aimage_search%7Cquery_from%3Apc_web_image_search%7Cx_object_id%3A1005010385325179%7C_p_origin_prod%3A&gatewayAdapt=glo2ara

Could you please tell me:

Is this board actually using a legitimate AD9361 (not a modified AD9363)?

Would this hardware fully support or be compatible with the Tezuka firmware?
(especially the RF paths, clocking, and 7020 resources)

I want to be sure this hardware is reliable and truly compatible before making the purchase.

Thanks a lot for your guidance and for all your great development work!

[Exteec]

OpenSourceSDRLab 7020 SDR (AD9361/AD9363) https://opensourcesdrlab.com/products/opensourcesdrlab-7020-sdr-ad9361-ad9363-development-board-with-pa-for-pluto-matlab-software-defined-radio?VariantsId=10362

I've got this board and use with Tezuka firmware successfuly.
I bought version with AD9361 (and this is what can be seen on the chip) and PA.
Maia shows full 56MHz bandwidth so I think it looks legit.
I tested it with SATSAGEN as VNA. I did not try to provide external clock.