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- Newsgroups: rec.radio.shortwave
- Path: sparky!uunet!wupost!csus.edu!netcom.com!joe
- From: joe@netcom.com (Joseph Jesson)
- Subject: Re: MC3362/3 based receiver
- Message-ID: <1992Nov20.203812.29202@netcom.com>
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- References: <199211192153.AA14136@tilde.csc.ti.com>
- Date: Fri, 20 Nov 1992 20:38:12 GMT
- Lines: 26
-
-
- I am afraid the schematic does not fit in an ANSI or text field but here
- is the block diagram:
-
-
- 3-300 Mhz ===> Ext. Tuned Ckt ===> RF Amp (MC3363 Only Internal) ===>
-
- ===> Mixer (Internal 3362, 3363) 1st ===> 10.7 IF (Int) ==> Ceramic Filter ==>
- ^
- | Local Osc (Internal) <=== Varacter (Internal)
-
- ===> Mixer (Internal) 2nd ===>= IF (455Khz) > Quadrature Detector (Int) >Audio
- ^ ^
- | | Lo (10.245 Fixed Internal) ^
- | | CW Osc (ext)
- | |
- |======> IF Amp (Linear External 455Khz)=========== Sync AM Feedback
- To Quad Det.
-
-
- Hope this gives you the idea! This does not show the built in RSSI
- level det output which is nice for an S meter or spectrum scope Y
- axis...
-
- joe jesson
-
-