Signal Generators are usually very expensive and not easily affordable for the average user.
A cheap generator can still be built using a Wideband Frequency Synthesizer like the ADF4351, which can output frequencies from 35-4400 MHz. The internal VCO runs from 2.2 to 4.4 GHz, the range from 35-2200...
As the previous repaired 6632B Power Supply is able to sink current up to 5A, I tried to characterize some Li-Ion cells by discharging with constant current, while getting the measured Voltage and Current back from the supply over GPIB using remote sensing. A fuse has been added in series for safety...
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