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Re: DC-5.5 GHz signal generator evaluation boad


 

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Yes, there are a development board but its really expensive compared with the excellent used signal generators available. The board don¡¯t includes output leveling and attenuator. The output match is very bad as the frequency goes up as the spectral purity. Needs very good external band filters, leveled amplifier good matched and step attenuator to become an acceptable signal generator. The good phase noise specs are related to numerical controlled oscillators but the implementation derates the spectral purity a very important specification for a signal generator. ?
At this point I really prefer old school analog designs for T&M applications.?



Ing. Patricio A. Greco
Taller Aeron¨¢utico de Reparaci¨®n 1B-349
Organizaci¨®n de Mantenimiento?Aeron¨¢utico de la Defensa OMAD-001
Laboratorio de Calibraci¨®n ISO 17025?AREA: RF/MW?
Gral. Mart¨ªn Rodr¨ªguez 2159
San Miguel (1663)
Buenos Aires
T: +5411-4455-2557
F: +5411-4032-0072




On 13 Sep 2022, at 09:14, Jim Strohm <jim.strohm@...> wrote:

Hi all

I looked at the AD9166 datasheet ... and somebody else needs to build
that for me. ?And whoever builds it needs to make it as easy to use as
a 1970s sig gen like the 8640. ?Otherwise I'll keep rescuing these old
boatanchors from the junkpile until I am too old to pick them up.
After that, I guess I'll have to use my General Radio unit oscillators
with a discrete freq counter ($15 from ebay) and a level meter
(junkbox or surplus HP432).

For me, "easy to use" means designing both frequency control and power
output controls that I don't need to look at to use -- IOW, a knob for
each. ?Any engineer who designs these controls three levels deep into
a pushbutton-driven physical interface with a 3" screen is an idiot,
and I would happily fly halfway around the world to beat him senseless
with his own manufactured product.

73
Jim N6OTQ






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