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R&S SML01 1.1Ghz Generator

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Martin72:
EDIT: Title changed.

Hi,

I would like to buy a 1Ghz generator, but currently only to determine bandwidths of oscilloscopes, nothing else.
So I don't want to buy a new one, that would be too expensive for this one application.
So I looked for used generators and I found one:

https://www.aimtti.com/product-category/legacy-products/aim-tgr1040

I could get exactly this model used for under 400€, because it is supposed to be technically flawless, but the display has a small quirk and the transformer hums.
Neither is a problem for me, from the side everything is clear.
What I want to know is if this generator is good enough for what I want to do.
I do not trust the whole even cheaper China stuff over the way - Or is that a misjudgement ?
What do you think, buy this generator or is it cheaper ?

nctnico:
2dB level accuracy is nothing to write home about. You can find an R&S SMIQ which has much better performance for about the same amount of money with some patience.

Martin72:
1050€ minimum currently and huge dimensions..It should be space saving I forgot to say.


--- Quote ---2dB level accuracy
--- End quote ---

Hm, OK...For determining the -3dB frequency this is worse.

TurboTom:
The price for a discuntinued RF signal generator of these specs is borderline acceptable, but I doubt that the money is well spent for the application that you have got in mind. Amplitude accuracy over the span is specified to be +-2dB. In order to properly characterize oscilloscopes even half of that accuracy appears to be too much.

A plain adjustable sine wave oscillator in combination with an RF level meter may be a more accurate approach, though it may be more troublesome to put to use.

Okay, @nctnico beat me on that one ;). But I may add that some Spectrum analyzer tracking generators may not be much worse suitable for that application. So if you have got an SSA3000 (Plus) or DSA800TG series device, these may provide a suitable test signal as well.

tautech:

--- Quote from: Martin72 on July 21, 2023, 11:04:50 pm ---Hi,

I would like to buy a 1Ghz generator, but currently only to determine bandwidths of oscilloscopes, nothing else.
So I don't want to buy a new one, that would be too expensive for this one application.

Profile:

--- Quote ---Siglent SDS2504X HD, Siglent SDG2122X, Neutrik A1, Hioki 3532-50 LCR Meter, Brymen BM869s,Siglent STB-3, Siglent DF2001A, UT 210-E, Hioki 3450 Milliohm Meter, Andonstar ADSM302, several DC-Supplies and other things.
--- End quote ---

--- End quote ---
No analyzer to set a zero span and use its TG ?  :-//

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