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Article #14743

Need help with xtals and an xtal scanner

#14743
From: Paula Stockholm
Date: Wed, 18 Nov 1992 12:43
37 lines
1728 bytes
In article <1992Nov17.175341.20447@CERIS.Purdue.EDU> dheisler@CERIS.Purdue.EDU writes:

 > 
 > Actual frequency : just the straight 14x.xxx right?

        No, the actual frequency is the actual minus the i-f (10.8 for
        Bearcat, 10.7 for all other scanners.


 > holder: what's this? Did i misunderstand?

        How is the crystal mounted - solder-in, socket? Which size? I
        don't know the specific type names.


 > tolerance : is that ppm? what's normal for this sort of thing?

        Primarily for transmit crystals. How much can the crystal
        frequency vary over a given range of temperature.


 > load capacity: is that like power capacity? what's normal?

        A crystal operates in parallel or series with a small capacitor
        (load capacitance).


        Now, after all that; get in touch with a company that deals with
        scanners or scanner crystals. They will have all the above info
        on file for the various models.  Look for names in a Scanner
        Guide or communications magazine.

        * * * * * * * * * * * * * *  * * * * * * * * * * * * * * *
	*   Paula Stockholm              paula@nlbbs.UUCP        *
	*  Cumberland, Maine          !nlbbs!paula@uunet.uu.net  *
	* * *  * * * * * * * * * * * * * * * * * * * * * * * * * * 
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Message-ID: <722090633snx@nlbbs.UUCP>
Path: arc1-ca.pugleaf.net!sparky!uunet!gator!nlbbs!uupms!paula
References: <1992Nov17.175341.20447@CERIS.Purdue.EDU>

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Path: arc1-ca.pugleaf.net!sparky!uunet!gator!nlbbs!uupms!paula
From: paula@nlbbs.UUCP (Paula Stockholm)
Newsgroups: sci.electronics
Subject: Need help with xtals and an xtal scanner
Message-ID: <722090633snx@nlbbs.UUCP>
Date: Wed, 18 Nov 92 12:43:53 GMT
References: <1992Nov17.175341.20447@CERIS.Purdue.EDU>
Reply-To: paula@nlbbs.UUCP
Distribution: world
Organization: The Electronics Workbench
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