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Re: Frequency range of HP 5352B frequency counter

 

On Wed, 25 May 2022 at 06:34, Lothar baier <Lothar@...> wrote:

It depends ,? the 46GHz option changed the input connector , the regular 5352 just as the 5351 used a 3.5mm male connector which will work to 40GHz with degraded specs which doesn¡¯t matter for a counter ,? the 46GHz option used a 2.4mm male NMD connector which is good to 50GHz ,


As far as I can see from the manual, the input connector on the 46 GHz option is 3.5 mm, not 2.4 mm, which does surprise me.?

I bought the counter from eBay and had it delivered to a friend who had a 50 GHz signal generator. He found that the high frequency input is kaput, but luckily the seller has a couple more counters, so hopefully one of the 3 will work.?

I reckon the also changed the cable assy as the 0.141 cable used already has a bunch of loss at 40GHz so using a 0.085 cable would have been a sensible choice .



I also know that initially HP used factory selected samplers for the 52 and 52 with 46GHz option so the 52 samplers had a different part#? , later on they scrapped the concept of having different part numbers and then just sold one part !


Do you know at what S/N that was stopped? It would be nice if the S/N of the unit I may get was new enough that it would be suitable.

Do you know if a 46 GHz one is likely to work at 47 GHz? There¡¯s nothing of interest for me between 40 and 46 GHz, but there¡¯s an amateur band in the UK covering 47-47.2 GHz. Although I have no immediate plans to work at 47 GHz, if the counter is likely to work there, it would provide an incentive to upgrade.?

Dave
--
Dr. David Kirkby,
Kirkby Microwave Ltd,
drkirkby@...

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