Merni lanac za DIY audio

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Merni lanac za DIY audio

Braca Offline

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#142

08-27-2026, 03:43 PM

Evo i rezultata prvih merenja.

Kao prvo, kontrola šuma s otpornikom od 50 oma na ulazu. Otpornik je tu zato što tu konfiguraciju koristim i kod drugih uređaja, iako je u ovom slučaju njegov uticaj zanemarljiv, jer je on u seriji sa ulaznim optornikom od 10k. Izlaz iz atenuatora je direktno vezan sa Cosmosom.
Na spektrima iz prvog priloga vidimo da prisustvo atenuatora dodaje samo 1nV/rtHz sopstvenom šumu ADC-a, što je zanemarljivo.

Drugi prilog: Viktorov oscilator, 2Vrms (mereno sa HP 34401A), oslabljeno za 60dB daje u spektru 2,013mV, a u numeričkom delu 2,007mV.
Treći prilog: isto kao gore, samo je ulaz smanjen na 1Vrms. Rezultat: u spektru 1,009mV, numerički rezultat -59,96dBV.

Atenuator položio ispit.

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Messages In This Thread

Merni lanac za DIY audio - by Braca - 06-17-2017, 11:57 AM

RE: Merni lanac za DIY audio - by BeliNinja - 06-17-2017, 12:12 PM

RE: Merni lanac za DIY audio - by Braca - 06-17-2017, 12:24 PM

RE: Merni lanac za DIY audio - by Gosha - 06-19-2017, 11:56 AM

RE: Merni lanac za DIY audio - by Braca - 06-18-2017, 05:26 PM

RE: Merni lanac za DIY audio - by Gosha - 06-19-2017, 11:53 AM

RE: Merni lanac za DIY audio - by Braca - 06-19-2017, 12:35 PM

RE: Merni lanac za DIY audio - by Gosha - 06-20-2017, 07:43 AM

RE: Merni lanac za DIY audio - by mikikg - 06-19-2017, 10:26 PM

RE: Merni lanac za DIY audio - by mikikg - 06-20-2017, 01:20 AM

RE: Merni lanac za DIY audio - by Braca - 06-20-2017, 12:00 PM

RE: Merni lanac za DIY audio - by Gosha - 06-20-2017, 01:13 PM

RE: Merni lanac za DIY audio - by vladd - 06-20-2017, 02:45 PM

RE: Merni lanac za DIY audio - by Braca - 06-20-2017, 10:10 PM

RE: Merni lanac za DIY audio - by Braca - 06-22-2017, 08:58 AM

RE: Merni lanac za DIY audio - by Bocko - 06-22-2017, 01:33 PM

RE: Merni lanac za DIY audio - by Braca - 06-22-2017, 08:02 PM

RE: Merni lanac za DIY audio - by Braca - 06-25-2017, 01:13 PM

RE: Merni lanac za DIY audio - by Braca - 06-27-2017, 05:14 PM

RE: Merni lanac za DIY audio - by Braca - 07-01-2017, 01:28 PM

RE: Merni lanac za DIY audio - by vladd - 07-01-2017, 03:41 PM

RE: Merni lanac za DIY audio - by Braca - 07-01-2017, 05:33 PM

RE: Merni lanac za DIY audio - by vladd - 07-01-2017, 09:01 PM

RE: Merni lanac za DIY audio - by Braca - 07-02-2017, 12:39 PM

RE: Merni lanac za DIY audio - by Braca - 07-03-2017, 04:17 PM

RE: Merni lanac za DIY audio - by Braca - 07-03-2017, 09:20 PM

RE: Merni lanac za DIY audio - by BeliNinja - 07-03-2017, 09:26 PM

RE: Merni lanac za DIY audio - by Braca - 08-12-2017, 08:54 PM

RE: Merni lanac za DIY audio - by vladd - 08-13-2017, 07:57 AM

RE: Merni lanac za DIY audio - by Braca - 08-13-2017, 12:02 PM

RE: Merni lanac za DIY audio - by Braca - 05-04-2020, 12:10 PM

RE: Merni lanac za DIY audio - by Braca - 05-07-2020, 11:10 AM

RE: Merni lanac za DIY audio - by Braca - 05-20-2020, 05:44 PM

RE: Merni lanac za DIY audio - by gorso69 - 02-24-2021, 10:13 AM

RE: Merni lanac za DIY audio - by Braca - 02-24-2021, 03:59 PM

RE: Merni lanac za DIY audio - by gorso69 - 02-24-2021, 04:29 PM

RE: Merni lanac za DIY audio - by Braca - 02-24-2021, 05:04 PM

RE: Merni lanac za DIY audio - by gorso69 - 02-25-2021, 12:09 AM

RE: Merni lanac za DIY audio - by Braca - 02-25-2021, 08:44 AM

RE: Merni lanac za DIY audio - by gorso69 - 02-25-2021, 06:35 PM

RE: Merni lanac za DIY audio - by Braca - 02-26-2021, 10:21 AM

RE: Merni lanac za DIY audio - by gorso69 - 02-26-2021, 07:45 PM

RE: Merni lanac za DIY audio - by Braca - 02-27-2021, 08:41 AM

RE: Merni lanac za DIY audio - by gorso69 - 02-28-2021, 04:18 PM

RE: Merni lanac za DIY audio - by Braca - 03-01-2021, 07:18 PM

RE: Merni lanac za DIY audio - by gorso69 - 03-01-2021, 08:02 PM

RE: Merni lanac za DIY audio - by Gosha - 03-02-2021, 04:05 PM

RE: Merni lanac za DIY audio - by Dragan100 - 03-01-2021, 08:22 PM

RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 08:51 AM

RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 09:30 AM

RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 10:45 AM

RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 11:25 AM

RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 12:52 PM

RE: Merni lanac za DIY audio - by gorso69 - 03-02-2021, 05:12 PM

RE: Merni lanac za DIY audio - by Gosha - 03-02-2021, 06:23 PM

RE: Merni lanac za DIY audio - by Braca - 03-02-2021, 07:36 PM

RE: Merni lanac za DIY audio - by gorso69 - 03-04-2021, 12:57 PM

RE: Merni lanac za DIY audio - by Gosha - 03-04-2021, 05:36 PM

RE: Merni lanac za DIY audio - by gorso69 - 03-06-2021, 03:23 PM

RE: Merni lanac za DIY audio - by Braca - 03-06-2021, 03:53 PM

RE: Merni lanac za DIY audio - by Braca - 03-09-2021, 09:51 AM

RE: Merni lanac za DIY audio - by gorso69 - 03-29-2021, 01:36 PM

RE: Merni lanac za DIY audio - by Braca - 03-29-2021, 07:43 PM

RE: Merni lanac za DIY audio - by gorso69 - 03-29-2021, 08:44 PM

RE: Merni lanac za DIY audio - by Braca - 04-02-2021, 10:40 AM

RE: Merni lanac za DIY audio - by gorso69 - 04-02-2021, 01:45 PM

RE: Merni lanac za DIY audio - by Braca - 04-02-2021, 02:38 PM

RE: Merni lanac za DIY audio - by gorso69 - 04-03-2021, 06:57 PM

RE: Merni lanac za DIY audio - by Braca - 04-04-2021, 11:12 AM

RE: Merni lanac za DIY audio - by gorso69 - 04-04-2021, 12:01 PM

RE: Merni lanac za DIY audio - by Braca - 04-04-2021, 12:47 PM

RE: Merni lanac za DIY audio - by gorso69 - 04-04-2021, 01:25 PM

RE: Merni lanac za DIY audio - by Braca - 05-22-2021, 11:54 AM

RE: Merni lanac za DIY audio - by Dragan100 - 05-26-2021, 01:11 PM

RE: Merni lanac za DIY audio - by Braca - 05-26-2021, 03:22 PM

RE: Merni lanac za DIY audio - by Braca - 05-30-2021, 01:22 PM

RE: Merni lanac za DIY audio - by gorso69 - 07-15-2021, 06:22 PM

RE: Merni lanac za DIY audio - by Braca - 07-16-2021, 01:32 PM

RE: Merni lanac za DIY audio - by gorso69 - 07-16-2021, 09:36 PM

RE: Merni lanac za DIY audio - by Braca - 07-17-2021, 03:02 PM

RE: Merni lanac za DIY audio - by gorso69 - 07-17-2021, 06:30 PM

RE: Merni lanac za DIY audio - by gorso69 - 07-27-2021, 12:46 PM

RE: Merni lanac za DIY audio - by gorso69 - 07-27-2021, 01:00 PM

RE: Merni lanac za DIY audio - by Braca - 07-27-2021, 06:48 PM

RE: Merni lanac za DIY audio - by gorso69 - 07-28-2021, 03:30 PM

RE: Merni lanac za DIY audio - by Braca - 07-29-2021, 09:19 AM

RE: Merni lanac za DIY audio - by gorso69 - 08-01-2021, 05:55 AM

RE: Merni lanac za DIY audio - by Braca - 08-01-2021, 09:52 AM

RE: Merni lanac za DIY audio - by Braca - 08-08-2021, 03:09 PM

RE: Merni lanac za DIY audio - by Braca - 08-09-2021, 11:20 AM

RE: Merni lanac za DIY audio - by Braca - 09-09-2021, 01:04 PM

RE: Merni lanac za DIY audio - by Braca - 09-16-2021, 10:09 AM

RE: Merni lanac za DIY audio - by Bocko - 09-16-2021, 03:36 PM

RE: Merni lanac za DIY audio - by Braca - 09-16-2021, 04:12 PM

RE: Merni lanac za DIY audio - by Braca - 09-17-2021, 12:10 PM

RE: Merni lanac za DIY audio - by Khadgar2007 - 09-17-2021, 09:13 PM

RE: Merni lanac za DIY audio - by Braca - 09-18-2021, 09:56 AM

RE: Merni lanac za DIY audio - by Braca - 12-24-2021, 03:56 PM

RE: Merni lanac za DIY audio - by Braca - 01-15-2022, 11:12 AM

RE: Merni lanac za DIY audio - by Braca - 01-23-2022, 07:19 PM

RE: Merni lanac za DIY audio - by Braca - 04-06-2022, 04:46 PM

RE: Merni lanac za DIY audio - by Braca - 08-14-2022, 05:46 PM

RE: Merni lanac za DIY audio - by Braca - 08-15-2022, 10:39 AM

RE: Merni lanac za DIY audio - by Vlajko - 08-16-2022, 01:29 AM

RE: Merni lanac za DIY audio - by Braca - 08-16-2022, 09:35 AM

RE: Merni lanac za DIY audio - by Braca - 09-19-2022, 05:26 PM

RE: Merni lanac za DIY audio - by ddanijel - 09-20-2022, 10:42 AM

RE: Merni lanac za DIY audio - by Dragan100 - 09-19-2022, 10:40 PM

RE: Merni lanac za DIY audio - by Аритон - 09-20-2022, 12:00 AM

RE: Merni lanac za DIY audio - by BeliNinja - 09-20-2022, 06:57 AM

RE: Merni lanac za DIY audio - by Braca - 09-20-2022, 08:33 AM

RE: Merni lanac za DIY audio - by Braca - 09-25-2022, 04:12 PM

RE: Merni lanac za DIY audio - by Dragan100 - 09-25-2022, 05:13 PM

RE: Merni lanac za DIY audio - by Braca - 10-29-2022, 11:11 AM

RE: Merni lanac za DIY audio - by Braca - 12-09-2023, 11:10 AM

RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 12:00 PM

RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 12:01 PM

RE: Merni lanac za DIY audio - by Braca - 12-09-2023, 12:57 PM

RE: Merni lanac za DIY audio - by BeliNinja - 12-09-2023, 01:05 PM

RE: Merni lanac za DIY audio - by Braca - 01-22-2024, 05:47 PM

RE: Merni lanac za DIY audio - by Braca - 11-30-2025, 08:01 PM

RE: Merni lanac za DIY audio - by Braca - 12-01-2025, 04:27 PM

RE: Merni lanac za DIY audio - by Braca - 03-22-2026, 10:16 AM

RE: Merni lanac za DIY audio - by Bocko - 03-22-2026, 11:02 AM

RE: Merni lanac za DIY audio - by BeliNinja - 03-22-2026, 11:42 AM

RE: Merni lanac za DIY audio - by Braca - 03-22-2026, 01:00 PM

RE: Merni lanac za DIY audio - by BeliNinja - 03-22-2026, 01:10 PM

RE: Merni lanac za DIY audio - by Braca - 03-22-2026, 02:44 PM

RE: Merni lanac za DIY audio - by Аритон - 03-22-2026, 01:56 PM

RE: Merni lanac za DIY audio - by Аритон - 03-22-2026, 01:57 PM

RE: Merni lanac za DIY audio - by emiSAr - 03-22-2026, 02:21 PM

RE: Merni lanac za DIY audio - by Аритон - 03-22-2026, 05:28 PM

RE: Merni lanac za DIY audio - by BeliNinja - 03-22-2026, 03:05 PM

RE: Merni lanac za DIY audio - by Аритон - 03-22-2026, 05:34 PM

RE: Merni lanac za DIY audio - by BeliNinja - 03-22-2026, 05:40 PM

RE: Merni lanac za DIY audio - by Braca - 03-22-2026, 06:11 PM

RE: Merni lanac za DIY audio - by BeliNinja - 03-22-2026, 06:18 PM

RE: Merni lanac za DIY audio - by Braca - 08-26-2026, 10:56 AM

RE: Merni lanac za DIY audio - by Khadgar2007 - 08-26-2026, 11:43 AM

RE: Merni lanac za DIY audio - by Braca - 08-26-2026, 03:12 PM

RE: Merni lanac za DIY audio - by Khadgar2007 - 08-26-2026, 05:00 PM

RE: Merni lanac za DIY audio - by Braca - 08-27-2026, 03:43 PM

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