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JunTek PSG9080 Programmable Signal Generator (80 MHz - 300 MSa/s - 14-bit)

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Quarlo Klobrigney:


The first time I used the generator, the power supply splattered the entire MW and SW bands (don't even ask about LW) on a radio I was tying to align.


I bought it to align the big stuff (you Europeans know the type) from the 50's and 60's as it was smaller than my FY6900 that's wedged in between other pieces of equipment on the overhead bench.


That power supply is absolute trash, How do they justify selling the generator for such a price with that thing powering it.
I set it aside to put a linear supply to it at a later date. 2 years later it still awaits.....


Quote from: Neper on 2021-10-16, 10:27:49


Quote from: ptluis on 2021-10-14, 06:38:23
Correct PSG9080 it's better than fy6800 cleaner waveform from what I saw in video reviews, apart from jitter, amplitude stability and wave distortion was solved by using a linear power supply made from a old transformer and some 7812, 7912 and 7805 linear regulators.
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I'm running my 9080 with an external linear PSU connected to the 5 V DC input. Its built-in PSU injects far too much noise back into the mains.




--- End quote ---


kosmos:
what do you think is the Joy-it PSG9080 or the JUNTEK part newer or preferable. I ordered the Joy-IT PSG9080, maybe I'll get a RIGOL DG10xxZ for comparison.

Bravo:
I found that Norton antivirus corrupted the PC software. When I used a laptop which does not have Norton on it there was no problem.

Edison:
The source in the PSG9080 doesn't just make a mess of the network and the output, I hear quite high tones and I can't sit near it when it's on, I normally hear a whistle from the transformer - for now, operation at 5V - I plan (two years) to convert it to a linear source and finish the input for EXT 50MHz

Just an addition: the power supply beeps audibly only without load, yesterday I thought of trying to see what the small plate can withstand - the power supply shut down at 4.3A and supplied 3A without a significant increase in temperature

radiolistener:
yes, mains PSU module used in this signal generator has issues. It has audible noise and may inject some noise interference into mains. I recommend to replace it with something better quality PSU module or just power it from external 5V / 2A PSU. You can power it from USB power bank.

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