The San Diego Microwave Group has been successfully using modified surplusQualcomm OmniTrack microwave assemblies for terrestrial communications over thelast seven years. The primary uses up to. this time have been: Modified PLL boardproducing 1152 MHz LO for 1296 MHz operation with 144 MHz IF. (Also as marker for2304 MHz through 24192 MHz) Modified PLL board producing 2160 MHz LO for 2304MHz operation with 144 MHz IF. Modified PLL board producing 2556 MHz X4 for useas 10224 MHz LO for 10368 operation. Modified assembly producing a synthesized LOtransverter for 10368 MHz with 144 or 432 MHz IF. Modified assembly producing asynthesized LO transverter for 5760 MHz. Modified assembly providing a stand aloneLNA for 10368 MHz. Source of 10 MHz TCXO reference oscillators suitable for usewith synthesizers up through 10 GHz.Detailed conversion procedures for these applications have been well documentedby the San Diego Microwave Group as well as a number of other users. Hundreds of thesynthesizers 10 GHz power amplifiers and some tens of transverters have been put intoAmateur service all over the wold. As a considerable number of the various Qualcommsurplus units have been and should continue to be available, the ongoing effort being putforth to produce detailed conversion documentation should not meet with a dead end ashas happened with many conversion projects based on a very limited quantity ofavailable material.
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