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Suggestions for high frequency signal generators
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bayjelly:
What are suggestions for "affordable" high frequency signal generators? With "high frequency" I don't really mean the HF band, but around 500 MHz at least, but preferably up to 1 GHz or much more. 5-6 GHz would be fantastic, but I realize that may be entering difficult territory.

I'm a hobbyist and don't have lab grade requirements for e.g. phase noise, but the generators I can find on eBay are often easily multiple times the price of even my Spectrum Analyzer and VNA.

I sometimes see that there are some cheap boards on eBay or AliExpress, any experience or recommendations regarding those?
tautech:
Well you already have a SG in your SA TG if you use it in zero span mode.  ;)
bayjelly:
Right, tautech. I know that and even used that, but then my SA, which I really want to use in those sort of endeavors, is stuck in zero span mode at that particular frequency. :D Not super good if you want to use that signal as, say, the LO input to a mixer!
tautech:

--- Quote from: bayjelly on July 21, 2022, 10:23:11 pm ---What are suggestions for "affordable" high frequency signal generators? With "high frequency" I don't really mean the HF band, but around 500 MHz at least, but preferably up to 1 GHz or much more. 5-6 GHz would be fantastic, but I realize that may be entering difficult territory.

--- End quote ---
Difficult indeed with such a wide spec and zero indication of budget. Please define affordable.

$2.5K will get you a 2.1 GHz modern proper RF gen but if you need more AWG like capability/features start at $1.5k and go up !  :scared:
Some models to investigate:
SDG6000X
SDG7000A
SSG3000X
SSG5000X
Zenith:
Try the used instrument market, HP/Agilent, Marconi, Philips and a load of others.

Look on ebay, but also check used test equipment dealers. Phone a few.  They usually offer some short guarantee, and sometimes have reasonable prices.
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