[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Drake 2880 Downconverter



This is very finely documented at:

http://www.din.or.jp/~m-arai/sband/mod32e.htm

I originally found the crystal required in the Digi-Key catalog.

A 10 pF chip capacitor is needed and can be obtained from
Downeast Microwave

73
Mike N4CNW

On Saturday 30 December 2000 13:48, brisch@qwest.net wrote:
> I have a question for those of you who have already converted the Drake.
> I have one that I have not converted yet but have (most of) the info for
> converting it.
>
> I would like to know if it is possible to make the downconversion to 420
> Mhz by substituting another crystal.  I have no info on the oscillator
> circuitry in the downconverter and do not know its limitations. Could a
> 7.??? Mhz xtl be used.
> While I am experimenting I, also, am giving thought to driving that circuit
> with a DDS source allowing me to move the frequency at will.
>
> Just ideas that I would like comments (pro and con)  on and any suggestions
> from those who have made the conversion.
>
> thanks
> Bill K0QK
>
> >Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> >To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home