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>> ------ Original Message ------
>> From: "Sergey Kubushyn" <ksi@...>
>> To: [email protected]
>> Sent: 2/28/2020 10:13:42 PM
>> Subject: Re: [HP-Agilent-Keysight-equipment] 8510C: 8340B vs 83631B
>>
>>> On Fri, 28 Feb 2020, Jim Ford wrote:
>>>
>>> I don't know who had all that message thread screwed up (guys, _PLEASE_
>>> setup proper quoting -- it is impossible to read) but as of 8340B I can tell
>>> that the best one is instrument without _ANY_ options.
>>>
>>> Unlike 99.9999% of other measurement equipment _EVERY_ option in 8340B is
>>> "Remove something" or "Make it worse" (moving connectors to the rear falls
>>> in the latter category.)
>>>
>>> There is no options in 8340B that would've added something or made it better
>>> than basic instrument without options.
>>>
>>>> Option 007 is relaxed phase noise, page 1-10.? I guess James Bond wasn't
>>>> concerned about phase noise!? 3 dB worse across the board except is the same at
>>>> 100 kHz offset (not surprising as that's probably the PN floor), and 30 Hz offset
>>>> not specified. Thanks, Bruce. JimSent from my Verizon, Samsung Galaxy smartphone
>>>> -------- Original message --------From: Bruce <bruce@...> Date: 2/28/20?
>>>> 4:43 PM? (GMT-08:00) To: [email protected] Subject: Re:
>>>> [HP-Agilent-Keysight-equipment] 8510C: 8340B vs 83631B Some of the 8340 series
>>>> that were used with the 8510C have more phase? noise than the "normal" unit - I
>>>> think this is the Opt 5 version - be? careful and try to avoid Opt 5 if you can -
>>>> check the documentation to? be sure my mmemory is correct.Quoting Jim Ford
>>>> <james.ford@...>:> Interesting, Vladan, that the 8340/8341 synths share
>>>> circuitry with? > the 8566 spec an.? I figured the bottom part of the 8566 was
>>>> pretty? > much just a synthesized sweeper anyway.? I don't have an 8340 or? >
>>>> 8341 (yet), but there are a few of the lower frequency versions in? > one of the
>>>> labs at work, and they do look like the bottom of the? > 8566.? The sloped bottom
>>>> part of the front panel gives them away.? I? > believe the standalone synths are
>>>> 5 rack units, though, vs. 3 or 4? > for the bottom of the 8566.>> Jim>> ------
>>>> Original Message ------> From: "pianovt via Groups.Io"
>>>> <pianovt=[email protected]>> To: [email protected]> Sent:
>>>> 2/28/2020 1:20:20 PM> Subject: Re: [HP-Agilent-Keysight-equipment] 8510C: 8340B
>>>> vs 83631B>>> Here is a brief history. The 8340A was designed in parallel with? >>
>>>> the 8510A and was intended for use with it. There was no 8360? >> series back
>>>> then. With time, the 8510 A became the 8510B and at? >> some point the 8340A?
>>>> become a "B" too. The biggest difference? >> between the A and B versions of the
>>>> two instruments was the change? >> from a HP proprietary processor to the 68000.
>>>> Eventually, the 8510B? >> was reworked into the 8510C. While this was going on, a
>>>> new? >> sweeping syntehsizerseries? was released, the 8360.>>>> The 8360 series
>>>> had some models which were stripped down,? >> specifically for use with the 8510.
>>>> Stripped down means they didn't? >> have a standard front panel user interface.
>>>> They were meant to? >> interact with the 8510 via the system bus only. That kept
>>>> the cost? >> down for customers who didn't need a stand-alone sweeper or? >>
>>>> synthesizer.>>>> In the meantime, a lower cost version of the 8340 was
>>>> introduced,? >> the 8341. It was a 20 GHz synthesizer. However, if you are
>>>> willing? >> to study the differences and do some work late at night, you can? >>
>>>> probably make the 8341 do much of what the 8340 does and get it to >> work to
>>>> 26.5 GHz. The 8341 will work with the 8510 system, but I am? >> not sure which
>>>> firmware works with what.>>>> The 8340/41 is very heavy, and it has a jet engine
>>>> style cooling? >> fan. Inside, the frequency synthesis circuits are pretty much
>>>> the? >> same as what was used in the 8566 spectrum analyzer, but there is? >>
>>>> also an output section with a multiplier, leveling circuits,? >> modulation etc.,
>>>> in other words all the stuff that's needed to get? >> the signal out. The upside
>>>> is, many 8566 LO parts can be had for? >> next to nothing, so spare parts are
>>>> largely available for the? >> synthesizer portion. Documentation is also
>>>> available. Not so much? >> for the 8360. As far as I know, the alignment and
>>>> calibration? >> software for the 8360 has not been released to the general
>>>> public? >> either.>>>> Vladan>>>>
>>>
>>> ---
>>> *
>>> *? KSI@home??? KOI8 Net? < >? The impossible we do immediately.? *
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>>> *
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> *? KSI@home??? KOI8 Net? < >? The impossible we do immediately.? *
> *? Las Vegas?? NV, USA?? < >? Miracles require 24-hour notice.?? *
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