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Transceiver DC01
SP6FRE Offline
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Liczba postów: 725
Dołączył: 20-09-2009
Post: #19
RE: Transceiver DC01
Dziękuję za informację o czułości. Podaj jeszcze czy ta czułość została pomierzona ze wzmacniaczem wejściowym w. cz. czy w wersji podstawowej tylko z mieszczem na wejściu?
L.J.
Tym razem ostatni ,na razie, z pomiarów - pomiar trzech najniższych, wejściowych, oktawowych filtrów pasmowych. Pomiar wykonany został wobulatorem na bazie Tiny DDS-a ( http://lx-net.pl/hr/wobul/wob_dds.html ) i choć system pomiarowy nie serwuje wyniku od razu to stosując zawężenie pasma pomiarowego i przesuwanie zakresu pomiarowego można z niego 'wyciągnąć' sporo danych a na pewno daje możliwość poglądu na charakterystykę przenoszenia i pozwala na jej korektę. Wobulator działa praktycznie prawie od zera do ok. 10MHz z możliwością przestrajania od 10Hz do 10MHz.
Na zdjęciach zamieściłem kolejno parami zdjęcia charakterystyk filtrów oktawowych 0.2-1MHz, 1-2MHz i 2-4MHz. Pierwsze zdjęcie w parze to pogląd na przenoszenie filtra w zakresie 0-10MHz a drugie to 'zbliżenie' charakterystyki w paśmie przenoszenia mierzone w zakresach: 0-2MHz (200kHz na działkę) dla filtru 0.2-1, 0.5-2.5MHz (200kHz na działkę) dla filtra 1-2 oraz 0.5-5.5MHz (500kHz na działkę) dla filtra 2-4. Ponieważ na osi x jest 10 działek głównych to łatwo ustalić pożądaną częstotliwość. Ocxzywiście 'zbliżenie' jest dokładniejsze w ustaleniu charakterystycznych punktów na wykresie jeśli chodzi o częstotliwość pomiaru. Jak widać najlepiej udał mi się filtr 2-4MHz a poprawy wymagają oba pozostałe. Filtry zostały wykonane z seryjnie produkowanych elementów o wartościach nierzadko odbiegających od wyliczonych teoretycznie stąd spore zafalowanie w paśmie ale mając takie narzędzie pomiarowe zapewne uda mi się coś skorygować ;-). Logika transceivera przełącza odpowiednie fitry oktawowe automatycznie w zależności od odbieranej częstotliwości a granice przełączenia to 1MHz, 2MHz, 4MHz, 8MHz i 16MHz.
Ponieważ nadeszły drugo oczekiwane układy Max7480 to zabiorę się teraz za wykonanie regulowanego filtra dolnoprzepustowego m.cz. oraz wzmacniacza w.cz. co zakończy ostatecznie konstrukcję.
L.J.


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İmage İmage İmage İmage İmage İmage
02-02-2010 14:35
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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

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