Drake Modification

A popular way to receive 2.4 GHz signals (as used by AO-40's S2 transmitter) is by use of any one of a number of MMDS downconverters. These units must typically be modified to change their downconverted frequency range to match that of the user's 2 meter receiver.

Here are some pictures from when I modified my Drake downconverter.

Here's the Drake, open but unmodified	Corrugated section removed	Shield removed	Inside view. Crystal on lower left to be changed.
Need to unsolder connector at upper right	Board removed, underside view	New xtal on left, old xtal on right	New xtal soldered in
Remove couple coils and capacitors

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