Author Topic: HP 53132A pre-scaler choices  (Read 161 times)

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Offline tkamiya

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HP 53132A pre-scaler choices
« on: September 06, 2019, 06:30:15 pm »
I am looking to add a 3GHz pre-scaler to newly acquired HP53132A.  Looking around, I see plenty of clones from China available.  There seem to be two types.  One appears to be a direct clone of HP version with chain of MMIC amplifier, and the other is much simpler design with just two chips.  Does anyone have experience with one or the other?  How are they different?  Additionally, are there experiences on 10GHz versions?

https://www.ebay.com/itm/Compatible-53131A-53132A-53181A-Option-030-3GHz-Frequency-Counter-F-HP-Agilent/113409537838?hash=item1a67bc372e:g:U2YAAOSwyUFb~9hp

https://www.ebay.com/itm/Compatible-53131-53132-53181-Frequency-counter-OPT-030-3G-option/111841071891?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D40719%26meid%3Ddbbc44bea73d4a5c879da34c95f2ee23%26pid%3D100005%26rk%3D3%26rkt%3D12%26mehot%3Dag%26sd%3D181866472102%26itm%3D111841071891%26pmt%3D1%26noa%3D0%26pg%3D2047675&_trksid=p2047675.c100005.m1851
 


Offline jadew

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Re: HP 53132A pre-scaler choices
« Reply #2 on: September 06, 2019, 06:47:51 pm »
Hey,

Also take a look at these ones: https://cojotech.com/

I'm making them.

Cheers
 

Offline tkamiya

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Re: HP 53132A pre-scaler choices
« Reply #3 on: September 06, 2019, 07:08:48 pm »
Very nicely made!  I guess 12GHz version is still in works?

How come 8GHz version is limited to 5GHz on 53132a?
 

Offline jadew

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Re: HP 53132A pre-scaler choices
« Reply #4 on: September 06, 2019, 07:16:35 pm »
Indeed, I was actually working on the 12 GHz board when I saw this topic.

The 5 GHz counters were originally using the original 12.4 GHz boards, but were limited in software. The same thing applies for the 1.5 GHz counters - they were using the 3 GHz prescalers, but were limited in software.

In fact, even the 12.4 GHz ones are limited. I'm sure I wrote the maximum value down, but I don't have it available at this very moment (might be 12.(9) GHz).
 


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