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Re: Frequency range of HP 5352B frequency counter

 

On Wed, 25 May 2022 at 16:49, Lothar baier <Lothar@...> wrote:

As to my knowledge option 005 was never covered by the regular service manual ,? back in my tucker days I remember seeing a addendum that was published to be added to the service guide that covered the part# for the sub panel , dress panel , connector and cable assy as well as the specs.

Also note that the 46GHz is not a hard spec , it merely means that the unit meets a published spec for sensitivity at this point , it more than likely will work at 47 or higher but the sensitivity will be crappy


The unit I bought arrived at my friends, but the higher frequency input was non-functional. Luckily the seller had another, which functioned okay. But there seems to be a hard limit at 43 GHz. I think it worked at 43, but not at 43.01, suggesting there's some software stopping it from going higher in frequency, and it's not limited to the connector.?

The unit was working down to a power of -24 dBm at 43 GHz, so well within the specification of -15 dBm?@ 40 GHz.? It worked with an input of 12 mV RMS on the lower frequency range, which is much better than the 25 mV RMS specification. That's not bad for a ?200 (around $250) frequency counter.

But I don't think without some changes outside the connector, will this count above 43 GHz - there seems to be some software limit there.

Dave
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