Die Suche ergab 42 Treffer
- So Jan 28, 2018 2:01 pm
- Forum: RX Hardware
- Thema: Probleme mit Abschwächer im Vorverstärker von DC2PD
- Antworten: 11
- Zugriffe: 22116
Re: Probleme mit Abschwächer im Vorverstärker von DC2PD
Hi Henning :-( just scratching my head. There is a strong probability that your Red Pitaya's I2C IS working perfectly. The contrary would mean you have killed some gpio of your FPGA, and it would be a different and sad story In fact, capturing the I2C signal with a tektro 2225 is possible, but you'l...
- Sa Jan 27, 2018 10:59 pm
- Forum: RX Hardware
- Thema: Probleme mit Abschwächer im Vorverstärker von DC2PD
- Antworten: 11
- Zugriffe: 22116
Re: Probleme mit Abschwächer im Vorverstärker von DC2PD
Hallo Henning As far as I can judge, you probably have a hardware problem, not a software one. - check if you have use the E2 connector, not the E1 - check if you didn't use a wrong pin of this E2 connector (Pin 9 for SCL, 10 for SDA - first of all, disconnect the DC2PD from the E2 connector - check...
- Do Dez 28, 2017 2:02 pm
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
... the I2C board is up and running
as usual, short description at
https://f6itu.wordpress.com/2017/12/28/ ... rmes-lite/
files on github at
https://github.com/F6ITU/Alexi2C
73'
Marc
as usual, short description at
https://f6itu.wordpress.com/2017/12/28/ ... rmes-lite/
files on github at
https://github.com/F6ITU/Alexi2C
73'
Marc
- Mi Dez 27, 2017 5:28 pm
- Forum: Peripheri
- Thema: Welche Mikrofone verwendet Ihr?
- Antworten: 1
- Zugriffe: 4432
Re: Welche Mikrofone verwendet Ihr?
Hi Sigi Any kind of low cost electret microphone pluged in my soundcard (those you can buy for less than 2 euros). Most of the time, reports are quite good and people quite desappointed when I told them it's not a super-duper-kenwIcomsu high priced mike I even tried low cost Bluetooth headset initia...
- So Dez 24, 2017 1:50 pm
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
Hi So far, so good (and Thank you Pavel, your Alexiares protocol integration seems to run "nice and easy") The red pitaya and your firmware help me a lot debugging (and understanding) the way filters, antenna outputs, attenuators and preamp are switched using the SPI https://f6itu.files.wo...
- Mo Dez 04, 2017 9:33 am
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
Thank you, Gert
yep, it should work...
I won't be able to help you before wednesday (I'm not in my shack presently and have to solder a pca9555 on my bench)
But I promise I will try to reproduce the problem and investigate asap
73'
Marc f6itu
yep, it should work...
I won't be able to help you before wednesday (I'm not in my shack presently and have to solder a pca9555 on my bench)
But I promise I will try to reproduce the problem and investigate asap
73'
Marc f6itu
- So Dez 03, 2017 8:36 pm
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
Hi Gert
Which address did you chose ? (in other words, are you in "peneloppe" or "alexiares" mode ? both don't have the same behaviour concerning P07 as far as I can remember (I'm away of my pitaya board right now)
Marc
Which address did you chose ? (in other words, are you in "peneloppe" or "alexiares" mode ? both don't have the same behaviour concerning P07 as far as I can remember (I'm away of my pitaya board right now)
Marc
- So Nov 05, 2017 11:40 am
- Forum: RX/TX Steuerung
- Thema: 6m LPF bypass oder nicht ?
- Antworten: 2
- Zugriffe: 4037
Re: 6m LPF bypass oder nicht ?
Vielen dank, René Your answer on the yahoo apache forum was "ganz klar" and my question was totally stupid. In fact, as I'm routing an Alex PCB -the lpf right now- I must admit that form time to time, having the nose "in" the building and re-design makes you loose the "big p...
- Fr Nov 03, 2017 10:23 am
- Forum: RX/TX Steuerung
- Thema: 6m LPF bypass oder nicht ?
- Antworten: 2
- Zugriffe: 4037
6m LPF bypass oder nicht ?
Hi Ich möchte wissen, wer die Funktion Alex lpf «6m bypass» benutzt, und in welcher Szenario/Ziel? Es sei denn, die Leute die mit höherer Ordnung Nyquist Zone arbeiten wollen (und in diesem Fall, die “RX2-direkt Eingang” macht genau die selbe Sache) Ich denke nur an eine permanenten LPF ohne “bypass...
- Do Nov 02, 2017 2:18 pm
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
Many thks Pavel BTW... it's not because something is not clear for me that it is obscure for the majority :- ) I'm particularly dumb when I try to enter in the software and binary playground . There was another reason that "oneminded" me... I was totally focused on the Alex I2S serial prot...
- Mi Nov 01, 2017 1:46 pm
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
Tnks Pavel
... probably because associating 0x20 and "0" was to elliptic for me.
Things are definitely clear now.
Tnks again
Marc
... probably because associating 0x20 and "0" was to elliptic for me.
Things are definitely clear now.
Tnks again
Marc
- Mi Nov 01, 2017 7:34 am
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
Thank you Pavel
I had no doubt concerning the TX level control at 0x22 ... it's clearly commented in the code
My question was concerning the antenna in/out switching (pca9555 P11/14 when NOT in Alexiares mode). My guess is 0x20
Am I right ?
73'
Marc f6itu
I had no doubt concerning the TX level control at 0x22 ... it's clearly commented in the code
My question was concerning the antenna in/out switching (pca9555 P11/14 when NOT in Alexiares mode). My guess is 0x20
Am I right ?
73'
Marc f6itu
- Di Okt 31, 2017 6:22 pm
- Forum: RX/TX Steuerung
- Thema: Outputs für Bandpassfilter und Antennenumschaltung
- Antworten: 26
- Zugriffe: 36226
Re: Outputs für Bandpassfilter und Antennenumschaltung
Hi Peter and all I just need a small explanation (tried to find it in the code, but not good enough in C to find the answer) - If I've understood, ATT1 and ATT2 are driven when the I2C address is 0x22 (output 8/9 of the decoder) - Which address are using all other output (output 10, 11, 12 and 13) f...
- Do Okt 26, 2017 10:48 pm
- Forum: RX Hardware
- Thema: Einfache Modifikation am Eingang zur Erhöhung der Eingangsempfindlichkeit
- Antworten: 26
- Zugriffe: 43622
Re: Einfache Modifikation am Eingang zur Erhöhung der Eingansempfindlichkeit
Hi Pavel
Indeed...
I didn't thought about this obvious (now) reason
Tnks !
Marc
Indeed...
I didn't thought about this obvious (now) reason
Tnks !
Marc
- Do Okt 26, 2017 5:27 pm
- Forum: RX Hardware
- Thema: Einfache Modifikation am Eingang zur Erhöhung der Eingangsempfindlichkeit
- Antworten: 26
- Zugriffe: 43622
Re: Einfache Modifikation am Eingang zur Erhöhung der Eingansempfindlichkeit
Hi Wolfgang and Ievgueni Thanks a lot for this "how to" I just missed one or two points about the Ievgueni modification - for which reason should the jumper be placed on the "5/6" position after the mod ? this position adds 500k and 10 pf in // with the 50 Ohm path, I don't under...
- Sa Okt 14, 2017 9:41 am
- Forum: Software
- Thema: Verloren in der Red Pitaya jungle
- Antworten: 11
- Zugriffe: 12449
Re: Verloren in der Red Pitaya jungle
mmhhh ... wunderbarer Wein und Schlösser, die mich an schöne Spaziergänge (und gläser) erinnern
Vielen dank, 73'
Marc
Vielen dank, 73'
Marc
- Fr Okt 13, 2017 5:44 pm
- Forum: Software
- Thema: Verloren in der Red Pitaya jungle
- Antworten: 11
- Zugriffe: 12449
Re: Verloren in der Red Pitaya jungle
Vielen dank Jörg
Ist es möglich um das DF3DZ "bild" (ende des artikel) zu sehen ? (erste URL)
Ohne schaltplan sind diese erklärung nicht so klar
73'
Marc
Ist es möglich um das DF3DZ "bild" (ende des artikel) zu sehen ? (erste URL)
Ohne schaltplan sind diese erklärung nicht so klar
73'
Marc
- Mi Okt 11, 2017 6:20 pm
- Forum: Software
- Thema: Verloren in der Red Pitaya jungle
- Antworten: 11
- Zugriffe: 12449
Re: Verloren in der Red Pitaya jungle
Hi Many thanks to all for your point of view and contributions (btw, thank you Pavel… I never heard this German saying before… gat to remember it ) Agreed with Pavel and Sigi… documentation has definitely nothing to do with the “openness” of a project (even if from time to time one’s could tell you ...
- Mi Okt 11, 2017 10:58 am
- Forum: Software
- Thema: Verloren in der Red Pitaya jungle
- Antworten: 11
- Zugriffe: 12449
Re: Verloren in der Red Pitaya jungle
Vielen dank, Wolfgang
I was trying to make an "inventory" of the open hard/soft red pitaya realm.
Indeed, the work of Pavel is already in the list (and loaded in my Pitaya)
I'll keep on digging
73'
Marc
I was trying to make an "inventory" of the open hard/soft red pitaya realm.
Indeed, the work of Pavel is already in the list (and loaded in my Pitaya)
I'll keep on digging
73'
Marc
- So Okt 08, 2017 2:22 pm
- Forum: Software
- Thema: Verloren in der Red Pitaya jungle
- Antworten: 11
- Zugriffe: 12449
Verloren in der Red Pitaya jungle
Hallo liebe SDRfreunde Ich versuche, den Dschungel (muss ich sagen Dingsbums?) von Entwicklungen um die Red Pitaya zu befreien. Ich habe keine "Pitaya SDR for dummies" gefunden... Ich hoffe, ich erzähle nicht zu viel dumkeiten. Hardware-Seite: Die beiden einzigen Änderungen, die veröffentl...