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HAM foorum • Vaata teemat - Filtri sobitamine

HAM foorum

Raadioamatörismist ja kõigest haakuvast.
Tänane kuupäev 19 Sept 2020, 19:57

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Tee uus teema Vasta teemale  [ 10 postitust ] 
Autor Sõnum
 Teema pealkiri: Filtri sobitamine
PostitusPostitatud: 24 Mai 2014, 15:24 
Eemal

Liitunud: 06 Dets 2006, 17:50
Postitusi: 234
Asukoht: KO29LL
Küsin taas targematelt abi.

Vaja on sobitada KVG XF-9A filter pildil olevasse skeemi. Kas ja millised sobitused peaks tekitama küsimärkide kohale? Pisike selgitus ei teeks ka paha.

Juppide andmelehed:
A1:
Q1:
Z1:
IC1:


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Filtri sobitamine.PNG
Filtri sobitamine.PNG [ 22.54 KB | Vaadatud 10391 korda ]
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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 24 Mai 2014, 18:25 
Eemal

Liitunud: 24 Aug 2008, 14:07
Postitusi: 128
See vist mingi ideeskeem. Muidu tehakse peale filtrit IF astmed koos AGC-ga . Enne filtrit sobitatakse trafodega või siis vähemate kadudega: takistite või kondekate abil. Iseehitajale soovitan osata vene keelt ja kammida päevade kaupa CQHAM.RU
http://www.cqham.ru/cons.htm
http://www.cqham.ru/forum/showthread.php?t=26570
http://www.cqham.ru/forum/forum.php
http://www.cqham.ru/forum/showthread.php?t=27668
http://neon.skydan.in.ua/RF.php#Mix
http://www.qsl.net/va3iul/Homebrew_RF_C ... _Ideas.htm
http://gulp.physik.unizh.ch/picastar/
http://www.qth.at/oe3hbw/Projects/HGCR2010/HGCR2010.htm


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 Profiil  
 
 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 24 Mai 2014, 18:35 
Eemal

Liitunud: 06 Dets 2006, 17:50
Postitusi: 234
Asukoht: KO29LL


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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 24 Mai 2014, 21:11 
Eemal

Liitunud: 12 Apr 2011, 13:28
Postitusi: 1615
Asukoht: Põlvamaa, Mammaste, KO38MC


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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 24 Mai 2014, 21:48 
Eemal

Liitunud: 06 Dets 2006, 17:50
Postitusi: 234
Asukoht: KO29LL
SA612 sisend on andmelehe järgi 1,5k
Common Gate Amp'i kohta leidsin aiult seda, et selle väljund takistus on kõrge. Kui kõrge? Kust seda vaadata vüi kuidas seda arvutada... sellest arusaamiseks mul teadmise puuduvad. Selleks sai ka vidinate andmelehed siia lingitud.
Filtri andmelehel on rida: "Termination (Ω // pF): 500 // 30 "


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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 25 Mai 2014, 11:59 
Eemal

Liitunud: 12 Apr 2011, 13:28
Postitusi: 1615
Asukoht: Põlvamaa, Mammaste, KO38MC


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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 25 Mai 2014, 12:32 
Eemal

Liitunud: 06 Dets 2006, 17:50
Postitusi: 234
Asukoht: KO29LL


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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 25 Mai 2014, 13:12 
Eemal

Liitunud: 24 Aug 2008, 14:07
Postitusi: 128
Kõigepealt uuri näiteid valminud transiiverite skeeme ja otsusta, millist sobitusmeetodit kasutada ja kas see niimoodi maandatud paisuga väljakas üldse toimib .
... Sweepgenerator ... või mürageneraator ja detekteerid heli PC helikaarti Spectralab programmiga vaatad, kas filtri karakteristik sobitades säilib.
http://www.cqham.ru/forum/showthread.php?t=13544
.jne on seal paljudes teemades kvartsfiltri häälestamisest


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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 25 Mai 2014, 14:03 
Eemal

Liitunud: 29 Nov 2005, 19:58
Postitusi: 552
Asukoht: TÕRVA - KO27WX
mäletan, et 1980-date Funkamateuris või DUBUS-es oli paar 2m/70cm transiiveri skeemi selle filtriga. Kes ainult selle nüüd üles leiaks?
Kui mälu ei peta, siis filter sobitus 2 jadamisi oleva kondeka vahele võnkeringis vms


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 Teema pealkiri: Re: Filtri sobitamine
PostitusPostitatud: 25 Mai 2014, 15:10 
Eemal

Liitunud: 06 Dets 2006, 17:50
Postitusi: 234
Asukoht: KO29LL


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