Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Merni lanac za DIY audio
#14
Podesivi eliminacioni ("notch") filter  za opseg od 990 do 1010Hz u zadnjoj fazi testiranja.
Radi se o Hall topologiji, čija je prednost da se frekvencija podešava samo jednim elementom, u konkretnom slučaju trimerom koji se nalazi u žutom nosaču na prednjoj ploči.
Ostalo je još da se zaleme prekidači za upravljanje atenuatorom i da se zameni improvizovani otpornik kojim je podešena dubina filtra.

Filter trenutno ostvaruje 90dB slabljenja na karakterisitičnoj frekvenciji, ali je signal relativno "prljav" zbog EMI. Iza filtera je ranije pomenuti LNA, čiji izlaz gledam na osciloskopu pri osetljivosti od 50mV.
Kada ga spakujem u kutiju biće detaljnih mernih rezultata, a ako bude interesa objaviću i šemu sa vrednostima elemenata.
Moraju se koristiti kvalitetne komponente (kondenzatori od 1%, otpornici od 0,1%), a na kraju je ipak neophodno fino podešavanje trimerom.

Pozdrav
Reply


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

Forum Jump:


Users browsing this thread: 14 Guest(s)