Junior Member level 2
I need to be able to adjust the local oscillator frequency going into my mixer, but only by a relatively small amount (from about 100 MHz to 200 MHz). I don't want to use a VCO because I can't find any that will go that low, and they're overkill since the ones I've seen give you a range from like 300 MHz to 2.3 GHz. A voltage controlled crystal oscillator has the correct range, however the one I'm looking at is about ±50 ppm accuracy. Is it considered bad practice to use a VCXO as a local oscillator like that? I've only really seen them used before in PLLs.