Odpowiedz 
 
Ocena wątku:
  • 3 Głosów - 3.67 Średnio
  • 1
  • 2
  • 3
  • 4
  • 5
Transceiver DC01
SP6FRE Offline
Leszek
****

Liczba postów: 725
Dołączył: 20-09-2009
Post: #193
RE: Transceiver DC01
Ustaw napięcie na kolektorze Q4 na minaimalną wartość lub nawet zewrzyj do masy bramkę Q3 co wyłączy tor ARW. Sprawdź również czy przy odbiorze na bramkę Q2 przez R40 podawane jest napięcie bliskie 0. Oba tranzystory Q2 i Q3 silnie tłumią wzmocnienie raz pod wpływem sygnału ARW a dwa podczas nadawania. Dzieje się to po przekroczeniu na ich bramkach pewnego poziomu napięcia dodatniego (więcej niż 2.5V).
Możesz również sprawdzić jakie masz wzmocnienie na poszczególnych stopniach mierząc napięcie na wyjściu wzmacniacza operacyjnego w stosunku do podanego na wejściu. U13B powinien wzmacniać ok. 5 razy jeśli sygbnał zostanie podany na R35 od strony BPF a U14B wzmacnia ok. 30 razy jeśli sygnał będzie podany na pin 7 U13B.
Ale może zacznij od sprawdzenia napięć stałych na wyjściach wzmacniaczy operacyjnych w całym ciągu U8-11, przez U13A (wzmocnienie ok. 5 razy), przez BPF (wzmocnenie ok. 1) do U13B i U14B o czym już była mowa. Napięcia na wyjściu wszędzie powinny wynosić połowę napięcia zasilania. Jeśli gdzieś jest nie tak trzeba szukać w obwodach polaryzacji wejśc (+) i (-) odpowiednich wzmacniaczy gdzie napięcia powinny mieć również wartość ok. połowy napięcia zasilania. Jeśli tu się okaże jakieś odstępstwo to trzeba będzie szukac w obwodzie polaryzacji wejśc lub w poprzednich stopniach bo niektóre z układów sterowane są dla prądu stałego z wyjśc stopni poprzednich. A zatem do pomiarów, na początek napięć stałych na wyjściach a potem wzmocnienia poszczególnych stopni. Badając wzmocnienie używaj generatora o napięciu 5-10mV. Możesz zastosować dzielnik 1:100 z opornika 1k oraz 10 omów jesli masz żródło o większym poziomie.
L.J.
31-07-2012 18:25
Odwiedź stronę użytkownika Znajdź wszystkie posty użytkownika Odpowiedz cytując ten post
Odpowiedz 


Wiadomości w tym wątku
Transceiver DC01 - SP6FRE - 18-01-2010, 22:44
RE: Transceiver DC01 - SP5FCS - 18-01-2010, 23:37
RE: Transceiver DC01 - QRP73 - 19-01-2010, 13:09
RE: Transceiver DC01 - SP6FRE - 19-01-2010, 22:02
RE: Transceiver DC01 - SP2GOW - 20-01-2010, 11:18
RE: Transceiver DC01 - SP6FRE - 20-01-2010, 18:08
RE: Transceiver DC01 - SP2GOW - 20-01-2010, 21:00
RE: Transceiver DC01 - SP3RAF - 20-01-2010, 21:31
RE: Transceiver DC01 - SP2QCA - 21-01-2010, 17:47
RE: Transceiver DC01 - SP6FRE - 22-01-2010, 0:48
RE: Transceiver DC01 - SP2QCA - 22-01-2010, 10:35
RE: Transceiver DC01 - SP6FRE - 26-01-2010, 0:45
RE: Transceiver DC01 - SP9FKP - 31-01-2010, 10:27
RE: Transceiver DC01 - 3Z6AEF - 31-01-2010, 14:14
RE: Transceiver DC01 - SP6FRE - 31-01-2010, 15:37
RE: Transceiver DC01 - 3Z6AEF - 31-01-2010, 19:59
RE: Transceiver DC01 - SP6FRE - 01-02-2010, 19:54
RE: Transceiver DC01 - SP2JQR - 02-02-2010, 0:24
RE: Transceiver DC01 - SP6FRE - 02-02-2010, 14:35
RE: Transceiver DC01 - SP8GVM - 05-02-2010, 16:20
RE: Transceiver DC01 - SP6FRE - 06-02-2010, 22:32
RE: Transceiver DC01 - SP8GVM - 07-02-2010, 8:42
RE: Transceiver DC01 - SP6FRE - 07-02-2010, 14:26
RE: Transceiver DC01 - SP8GVM - 13-02-2010, 16:39
RE: Transceiver DC01 - SP6FRE - 14-02-2010, 19:48
RE: Transceiver DC01 - SP8GVM - 14-02-2010, 21:45
RE: Transceiver DC01 - SP6FRE - 16-02-2010, 14:39
RE: Transceiver DC01 - SP6FRE - 20-02-2010, 23:49
RE: Transceiver DC01 - SP8GVM - 21-02-2010, 9:11
RE: Transceiver DC01 - SP6FRE - 15-03-2010, 22:24
RE: Transceiver DC01 - SP6FRE - 20-03-2010, 16:36
RE: Transceiver DC01 - SP6FRE - 28-03-2010, 21:48
RE: Transceiver DC01 - SP3IQ - 08-11-2011, 17:43
RE: Transceiver DC01 - ORINOCO - 01-01-2011, 19:09
RE: Transceiver DC01 - SP3IQ - 24-02-2012, 0:26
RE: Transceiver DC01 - SP8GVM - 24-02-2012, 22:53
RE: Transceiver DC01 - SP3IQ - 26-02-2012, 7:29
RE: Transceiver DC01 - SP6FRE - 26-02-2012, 21:21
RE: Transceiver DC01 - SP3IQ - 26-02-2012, 22:58
RE: Transceiver DC01 - SP6FRE - 26-02-2012, 23:51
RE: Transceiver DC01 - SP9FKP - 08-03-2012, 20:53
RE: Transceiver DC01 - SP3IQ - 08-03-2012, 23:04
RE: Transceiver DC01 - SP6FRE - 12-03-2012, 22:36
RE: Transceiver DC01 - SQ9RFC - 13-03-2012, 2:35
RE: Transceiver DC01 - SP3IQ - 13-03-2012, 9:08
RE: Transceiver DC01 - SQ9RFC - 13-03-2012, 17:03
RE: Transceiver DC01 - SP3IQ - 13-03-2012, 18:17
RE: Transceiver DC01 - SP6FRE - 15-03-2012, 0:10
RE: Transceiver DC01 - SQ9RFC - 16-03-2012, 4:32
RE: Transceiver DC01 - SP3IQ - 16-03-2012, 22:22
RE: Transceiver DC01 - SQ7GVU - 16-03-2012, 23:19
RE: Transceiver DC01 - SP6FRE - 16-03-2012, 23:34
RE: Transceiver DC01 - SP6FRE - 19-03-2012, 0:09
RE: Transceiver DC01 - SQ9RFC - 19-03-2012, 3:09
RE: Transceiver DC01 - SQ7OVV - 19-03-2012, 19:25
RE: Transceiver DC01 - SP6FRE - 20-03-2012, 0:58
RE: Transceiver DC01 - SQ9RFC - 20-03-2012, 1:44
RE: Transceiver DC01 - SP6FRE - 25-03-2012, 22:48
RE: Transceiver DC01 - SQ9RFC - 25-03-2012, 23:58
RE: Transceiver DC01 - SP6FRE - 26-03-2012, 0:37
RE: Transceiver DC01 - SQ9RFC - 26-03-2012, 2:43
RE: Transceiver DC01 - SP6FRE - 26-03-2012, 10:44
RE: Transceiver DC01 - SP6FRE - 01-04-2012, 22:28
RE: Transceiver DC01 - SQ9RFC - 05-04-2012, 1:38
RE: Transceiver DC01 - SQ8Z - 11-04-2012, 23:43
RE: Transceiver DC01 - SP6FRE - 12-04-2012, 13:01
RE: Transceiver DC01 - SQ9RFC - 12-04-2012, 15:21
RE: Transceiver DC01 - SP6FRE - 16-04-2012, 21:57
RE: Transceiver DC01 - SP3IQ - 31-05-2012, 23:10
RE: Transceiver DC01 - SP6FRE - 01-06-2012, 9:46
RE: Transceiver DC01 - SP9FKP - 01-06-2012, 12:15
RE: Transceiver DC01 - SQ9RFC - 01-06-2012, 11:00
RE: Transceiver DC01 - SP3IQ - 01-06-2012, 14:33
RE: Transceiver DC01 - SP6FRE - 01-06-2012, 15:10
RE: Transceiver DC01 - SP3IQ - 01-06-2012, 15:34
RE: Transceiver DC01 - SP6FRE - 01-06-2012, 15:48
RE: Transceiver DC01 - SQ9RFC - 10-06-2012, 2:28
RE: Transceiver DC01 - SP6FRE - 10-06-2012, 9:42
RE: Transceiver DC01 - SQ9RFC - 10-06-2012, 10:47
RE: Transceiver DC01 - SP6FRE - 10-06-2012, 11:21
RE: Transceiver DC01 - SP3IQ - 10-06-2012, 13:48
RE: Transceiver DC01 - SQ5KHA - 11-06-2012, 8:41
RE: Transceiver DC01 - SQ9RFC - 11-06-2012, 11:58
RE: Transceiver DC01 - SQ5KHA - 11-06-2012, 12:26
RE: Transceiver DC01 - SQ9RFC - 11-06-2012, 13:11
RE: Transceiver DC01 - SQ5KHA - 11-06-2012, 13:17
RE: Transceiver DC01 - SQ9RFC - 11-06-2012, 13:39
RE: Transceiver DC01 - SQ5KHA - 11-06-2012, 16:14
RE: Transceiver DC01 - SP6FRE - 11-06-2012, 13:50
RE: Transceiver DC01 - SQ9RFC - 11-06-2012, 15:50
RE: Transceiver DC01 - SP6FRE - 11-06-2012, 20:47
RE: Transceiver DC01 - SP3IQ - 11-06-2012, 20:58
RE: Transceiver DC01 - SQ5KHA - 11-06-2012, 21:10
RE: Transceiver DC01 - SP3IQ - 11-06-2012, 21:40
RE: Transceiver DC01 - SQ5KHA - 11-06-2012, 21:47
RE: Transceiver DC01 - SP3IQ - 11-06-2012, 21:54
RE: Transceiver DC01 - SQ9RFC - 11-06-2012, 23:50
RE: Transceiver DC01 - SQ5KHA - 12-06-2012, 10:09
RE: Transceiver DC01 - SQ9RFC - 12-06-2012, 10:26
RE: Transceiver DC01 - SP6FRE - 12-06-2012, 10:37
RE: Transceiver DC01 - SQ5KHA - 12-06-2012, 13:46
RE: Transceiver DC01 - SQ9RFC - 12-06-2012, 14:41
RE: Transceiver DC01 - SP3IQ - 12-06-2012, 21:57
RE: Transceiver DC01 - SQ5KHA - 12-06-2012, 23:05
RE: Transceiver DC01 - SP3IQ - 12-06-2012, 23:22
RE: Transceiver DC01 - SQ9RFC - 13-06-2012, 2:29
RE: Transceiver DC01 - SP6FRE - 13-06-2012, 11:04
RE: Transceiver DC01 - SQ9RFC - 13-06-2012, 12:09
RE: Transceiver DC01 - SP6FRE - 13-06-2012, 12:36
RE: Transceiver DC01 - SQ5KHA - 13-06-2012, 14:48
RE: Transceiver DC01 - SQ9RFC - 13-06-2012, 15:07
RE: Transceiver DC01 - SP3RAF - 13-06-2012, 21:44
RE: Transceiver DC01 - SP6FRE - 13-06-2012, 22:54
RE: Transceiver DC01 - SQ9RFC - 14-06-2012, 0:04
RE: Transceiver DC01 - SP6FRE - 14-06-2012, 8:42
RE: Transceiver DC01 - SQ5KHA - 14-06-2012, 9:46
RE: Transceiver DC01 - SP6FRE - 14-06-2012, 10:28
RE: Transceiver DC01 - SQ9RFC - 14-06-2012, 10:39
RE: Transceiver DC01 - SP6FRE - 14-06-2012, 10:56
RE: Transceiver DC01 - SQ9RFC - 14-06-2012, 11:05
RE: Transceiver DC01 - SQ5KHA - 14-06-2012, 17:26
RE: Transceiver DC01 - SP6FRE - 14-06-2012, 21:06
RE: Transceiver DC01 - SQ5KHA - 14-06-2012, 21:23
RE: Transceiver DC01 - SQ9RFC - 15-06-2012, 0:14
RE: Transceiver DC01 - SP6FRE - 15-06-2012, 9:03
RE: Transceiver DC01 - SQ5KHA - 15-06-2012, 10:27
RE: Transceiver DC01 - SQ9RFC - 15-06-2012, 12:52
RE: Transceiver DC01 - SQ5KHA - 15-06-2012, 18:38
RE: Transceiver DC01 - SQ9RFC - 15-06-2012, 19:08
RE: Transceiver DC01 - SQ5KHA - 15-06-2012, 19:56
RE: Transceiver DC01 - SQ9RFC - 15-06-2012, 20:15
RE: Transceiver DC01 - SQ5KHA - 15-06-2012, 22:56
RE: Transceiver DC01 - SQ9RFC - 15-06-2012, 23:41
RE: Transceiver DC01 - SQ5KHA - 16-06-2012, 8:15
RE: Transceiver DC01 - SQ9RFC - 16-06-2012, 10:06
RE: Transceiver DC01 - SP6FRE - 16-06-2012, 17:32
RE: Transceiver DC01 - SQ5KHA - 16-06-2012, 19:26
RE: Transceiver DC01 - SQ9RFC - 18-06-2012, 1:33
RE: Transceiver DC01 - SQ5KHA - 18-06-2012, 10:19
RE: Transceiver DC01 - SP6FRE - 19-06-2012, 14:38
RE: Transceiver DC01 - SQ9RFC - 19-06-2012, 15:09
RE: Transceiver DC01 - SP3IQ - 19-06-2012, 18:24
RE: Transceiver DC01 - SQ5KHA - 19-06-2012, 21:14
RE: Transceiver DC01 - SQ9RFC - 22-06-2012, 2:07
RE: Transceiver DC01 - SP6FRE - 22-06-2012, 8:56
RE: Transceiver DC01 - SQ9RFC - 22-06-2012, 11:38
RE: Transceiver DC01 - SP6FRE - 22-06-2012, 12:20
RE: Transceiver DC01 - SQ5KHA - 22-06-2012, 18:20
RE: Transceiver DC01 - SQ9RFC - 23-06-2012, 1:11
RE: Transceiver DC01 - SQ5KHA - 23-06-2012, 6:43
RE: Transceiver DC01 - SP6FRE - 23-06-2012, 11:15
RE: Transceiver DC01 - SQ5KHA - 24-06-2012, 16:10
RE: Transceiver DC01 - SP6FRE - 24-06-2012, 19:48
RE: Transceiver DC01 - SQ5KHA - 24-06-2012, 20:12
RE: Transceiver DC01 - SQ9RFC - 26-06-2012, 16:03
RE: Transceiver DC01 - SQ5KHA - 26-06-2012, 16:59
RE: Transceiver DC01 - SQ9RFC - 26-06-2012, 22:36
RE: Transceiver DC01 - SQ5KHA - 27-06-2012, 9:09
RE: Transceiver DC01 - SQ9RFC - 27-06-2012, 10:18
RE: Transceiver DC01 - SQ5KHA - 27-06-2012, 10:26
RE: Transceiver DC01 - SP6FRE - 27-06-2012, 10:40
RE: Transceiver DC01 - SQ9RFC - 27-06-2012, 11:56
RE: Transceiver DC01 - SQ5KHA - 27-06-2012, 13:08
RE: Transceiver DC01 - SP6FRE - 27-06-2012, 13:34
RE: Transceiver DC01 - SQ5KHA - 27-06-2012, 14:01
RE: Transceiver DC01 - SQ9RFC - 27-06-2012, 14:37
RE: Transceiver DC01 - SP6FRE - 27-06-2012, 15:00
RE: Transceiver DC01 - SQ5KHA - 28-06-2012, 10:09
RE: Transceiver DC01 - SP6FRE - 28-06-2012, 10:46
RE: Transceiver DC01 - SQ5KHA - 28-06-2012, 13:21
RE: Transceiver DC01 - SP6FRE - 28-06-2012, 15:53
RE: Transceiver DC01 - SQ5KHA - 28-06-2012, 16:59
RE: Transceiver DC01 - SQ9RFC - 28-06-2012, 23:34
RE: Transceiver DC01 - SQ5KHA - 29-06-2012, 22:46
RE: Transceiver DC01 - SP2QCA - 10-07-2012, 8:16
RE: Transceiver DC01 - SQ5KHA - 10-07-2012, 9:09
RE: Transceiver DC01 - SP2QCA - 10-07-2012, 17:11
RE: Transceiver DC01 - SQ5KHA - 10-07-2012, 18:12
RE: Transceiver DC01 - SQ9RFC - 18-07-2012, 12:41
RE: Transceiver DC01 - SP6FRE - 18-07-2012, 23:10
RE: Transceiver DC01 - SQ9RFC - 18-07-2012, 23:20
RE: Transceiver DC01 - SP6FRE - 18-07-2012, 23:31
RE: Transceiver DC01 - SQ9RFC - 19-07-2012, 0:16
RE: Transceiver DC01 - SQ5KHA - 28-07-2012, 12:55
RE: Transceiver DC01 - SP6FRE - 29-07-2012, 22:55
RE: Transceiver DC01 - SQ9RFC - 29-07-2012, 23:32
RE: Transceiver DC01 - SQ5KHA - 30-07-2012, 12:09
RE: Transceiver DC01 - SP6FRE - 30-07-2012, 13:30
RE: Transceiver DC01 - SQ5KHA - 30-07-2012, 13:41
RE: Transceiver DC01 - SP6FRE - 30-07-2012, 13:53
RE: Transceiver DC01 - SQ9RFC - 30-07-2012, 14:21
RE: Transceiver DC01 - SQ5KHA - 31-07-2012, 10:01
RE: Transceiver DC01 - SP6FRE - 31-07-2012 18:25
RE: Transceiver DC01 - SQ5KHA - 01-08-2012, 10:56
RE: Transceiver DC01 - SP5BMP - 01-08-2012, 11:05
RE: Transceiver DC01 - SQ5KHA - 01-08-2012, 11:11
RE: Transceiver DC01 - SP5BMP - 01-08-2012, 12:40
RE: Transceiver DC01 - SQ5KHA - 01-08-2012, 13:11
RE: Transceiver DC01 - SP6FRE - 01-08-2012, 21:11
RE: Transceiver DC01 - SQ5KHA - 02-08-2012, 8:08
RE: Transceiver DC01 - SP6FRE - 02-08-2012, 21:46
RE: Transceiver DC01 - SQ5KHA - 07-08-2012, 17:06
RE: Transceiver DC01 - SQ5KHA - 03-08-2012, 8:01
RE: Transceiver DC01 - SQ9RFC - 07-08-2012, 13:35
RE: Transceiver DC01 - SP2QCA - 08-08-2012, 7:58
RE: Transceiver DC01 - SP6FRE - 07-08-2012, 23:45
RE: Transceiver DC01 - SQ9RFC - 08-08-2012, 1:15
RE: Transceiver DC01 - SQ9RFC - 29-09-2012, 10:53
RE: Transceiver DC01 - SQ9RFC - 16-01-2013, 13:19
RE: Transceiver DC01 - SP6FRE - 18-01-2013, 18:48
RE: Transceiver DC01 - SQ9RFC - 18-01-2013, 20:35
RE: Transceiver DC01 - SQ9RFC - 24-01-2013, 10:49
RE: Transceiver DC01 - SP6FRE - 24-01-2013, 13:15
RE: Transceiver DC01 - SQ9RFC - 24-01-2013, 14:21

Skocz do:


Użytkownicy przeglądający ten wątek: 2 gości