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D6_firmware/community

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Adrianf1980

@Adrianf1980

Hello

I wonder if the spectrum analyzer is good for a 100% rf noob

Jose Luu

@joseluu

Hi Adrian, it is not as good as a real SA as it has a fixed bandwidth (about 300KHz), and depending on how you scan, you may miss narrow band signals, for instance if you go from 1GHz to 3GHz in 2000 steps, the command software will make it jump every MHz and signals in between the 300KHz BW will be missed. In a word: you have to know how it works and its limitations (can be a good way to learn). Still it has impressive performance if you look for instance at the FM band survey on David's page: http://alloza.eu/david/WordPress3/?p=542 (scroll down 3/4). A few of us are spending some time to make it better (hardware and software wise), and if you factor in the low price, it is certainly worth considering.

F1CHF

@f1_chf_twitter

je suis venu voir ..j'avais jamais vu

faut pas faire enter , ça part tout seul
hi ...
controle et enter pour passer a la ligne
le CHF

Jose Luu

@joseluu

On peut ajouter des documents par drag/drop, ici la doc de l'ADF4351

Jose Luu

@joseluu

On peut creer des "rooms" par sous-sujet (du D6), a nous de nous organiser

F1CHF

@f1_chf_twitter

pour info j'ai trouvé un boitier en alu pour peanut, il arrive

https://www.ebay.fr/itm/Bo%C3%AEtier-bo%C3%AEte-instruments-PCB-aluminium-%C3%89tui-projet-%C3%A9lectronique-DIY-8-type-Noir/362010407242?ssPageName=STRK%3AMEBIDX%3AIT&var=631254728580&_trksid=p2057872.m2749.l2649

F1CHF

@f1_chf_twitter

ATTENTION avec ce boitier

si F1BHY a raison et si ce sont les cotes EXTERIEURES le D6 ne rentre pas dedans !
j'attends de voir
le CHF

Adrianf1980

@Adrianf1980

This is so France :( I cant read it

DavidAlloza

@DavidAlloza

Adrian, we are talking about a box case for the D6. This not seem an easy task :)

Adrianf1980

@Adrianf1980

Well as soon as I get my board I will sit on fusion and make a case for it. I can publish the STl file when I’m done

STL

Adrianf1980

@Adrianf1980

Guys I need this http://alloza.eu/david/WordPress3/?p=542

In English or at least a breakdown

F1CHF

@f1_chf_twitter

@Adrianf1980 I have the STL files
send me an email I will forward
the files (because I don't if it is possible here) F1CHF at FREE.FR

DavidAlloza

@DavidAlloza

I just release a new version of SNASharp
All details here : http://alloza.eu/david/WordPress3/?p=791

HuubH

@HuubH

May have done something stupid. I own a V2.032B version of the board. Programmed it with the modified firmware. Tried all of them, but no luck. VFO does work, but input does not show signal. It seems to scan the spectrum but output is a flat line Across the spectrum with an extreme out of range value. Tried with Simple Spectrum Analyzer and SNASharp, no joy. Made a backup of the firmware (i thought) but the file seems corrupt.

Is there some calibration to be done or could somebody provide me with a backup of the original firmware for the V2.032B board. Any input is welcome.
Thank you in advance, Huub

Jose Luu

@joseluu

Hello HuubH,
I made a V6 firmware enabling a pull up resistor on pin4 of the stm32, this should be enough to enable the AD8307, could you try it ?

Huub Hameleers

@huubh_gitlab

Hi Jose, Sure! I will try this tomorrow or the day after. Will report back when done. Huub

Huub Hameleers

@huubh_gitlab

Oke, Jose, could not wait so I just tried the version and it works. Had to repair the trace, disconnected the enable pin from the 5V line and reprogrammed the STM with you latest version. Done that, and used SNASHarp for testing. Thank you for making the effort. Huub

By the way, can not think of a reason the enable line was added, do you have a clue about that?

Jose Luu

@joseluu

Thanks for trying. No idea why the enable is used, I have checked: it does not help the ADC calibration phase.

HuubH

@HuubH

One other thing (maybe two) Seems i have two gitlab account, sorry about that. The other thing, with the version 6 firmware i seem not to be able to do a callibration in SNASharp. Using a previous DeviceDef with previously run callibration does give me callibrated output.

Jose Luu

@joseluu

Thanks for the info for bug with the calibration in V6. I have to confess I did not test the V6 :-(

DavidAlloza

@DavidAlloza

@HuubH
What device definition do you use in your test ?
F1FGV_FIRMWARE_12BITS_D6_JTGP-1033 35M-4.4G or
HAOBA_D6_JTGP-1033_35M_4.4G ?
Could you test with "raw cature" checked, the input linked to the output, TG On, and put a screenshot here ?

Jose Luu

@joseluu

I have released a .def file with the V6, nothing special in it, but could be buggy, see: https://github.com/joseluu/D6_firmware/releases/tag/V6

Huub Hameleers

@huubh_gitlab

Hi, i've run some test. First a calibration with the latest version SNASharp. With your latest def. file and same test with the included defenition. Trace before and after callibration (cleaned folder) And with TG ON and OFF. Finally an image of the previous version of SNASharp with a nicely callibrated result (Flat). Exchanged callibration file form old and latest SNA version. The calibration file from the 04 definition gives a nice callibrated trace when i disabld the RAW option.

The names of the imagefiles contain some information

DavidAlloza

@DavidAlloza

Thank you. The raw capture don't take account of calibration, "normaly" you will get the same result with the last version and raw capture disabled as the previous version. If this is not the case there is a bug.

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