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70340A options

Question asked by jfphp on Mar 19, 2009
Latest reply on Apr 17, 2009 by dhamilton

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I would like to upgrade my 70340A, of course no longer supported, to the options:
1E8 1Hz frequency resolution. I guess, after reading the manual, it is a software related option ; is it tied with the serial number and does anybody in the factory still get the unlock key ? It seems common with the 83731A.
1E1 step attenuator : I have got a 90db attenuator from a 83731A and the piece of cable coming with it is a still available part. But, how can I tell the microprocessor, there is an attenuator ? It was very easy with the 8340/1 and 8360X : you had to change by the front panel a documented cal constant in the CPU...
Thanks

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jborges3 Mar 30, 2009 1:30 PM

Hello jfphp,

Yes, unfortunately 70340A is no longer supported. The option 1E8 wasn't just a software related option, it required a different A7 YO Loop/Offset board assembly. 1E8 used 83711-60110 (also known as the 1 Hz offset synthesizer) instead of the standard 83711-60003. This hardware is no longer available.

Best regards,

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jfphp Mar 30, 2009 1:53 PM

Hello jborges3,

Thanks for the answer but what about the option 1E1 step attenuator ? How can I tell the CPU that there is an attenuator?
Thanks.

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jborges3 Mar 30, 2009 5:16 PM

Hello jfphp,

Sorry I missed the other part of your question. I do know some MMS stuff, but I'm a SA guy, and so what I know about are 71210C Spec ANs and such. Sorry, but I don't know enough about MMS sources to be of much use when it has to do with more than parts questions.

I asked some sources guys who remember this module and they remember that adding options to the 70340A wasn't a trivial thing, even back when we were set up to do it. It isn't just a simple license key or command. They told me that it was never a process that was intended to be done by customers, it involved unpublished commands and special codes that we can't distribute.

Sorry and good luck,

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dhamilton Apr 17, 2009 11:15 AM

Hello,
I can help you out. Contact me offline dhamilton at ntecusa.com.

Dave

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jborges3 Mar 30, 2009 1:30 PM
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Hello jfphp,

Yes, unfortunately 70340A is no longer supported. The option 1E8 wasn't just a software related option, it required a different A7 YO Loop/Offset board assembly. 1E8 used 83711-60110 (also known as the 1 Hz offset synthesizer) instead of the standard 83711-60003. This hardware is no longer available.

Best regards,
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jfphp Mar 30, 2009 1:53 PM
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Hello jborges3,

Thanks for the answer but what about the option 1E1 step attenuator ? How can I tell the CPU that there is an attenuator?
Thanks.
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jborges3 Mar 30, 2009 5:16 PM
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Correct Answer
Hello jfphp,

Sorry I missed the other part of your question. I do know some MMS stuff, but I'm a SA guy, and so what I know about are 71210C Spec ANs and such. Sorry, but I don't know enough about MMS sources to be of much use when it has to do with more than parts questions.

I asked some sources guys who remember this module and they remember that adding options to the 70340A wasn't a trivial thing, even back when we were set up to do it. It isn't just a simple license key or command. They told me that it was never a process that was intended to be done by customers, it involved unpublished commands and special codes that we can't distribute.

Sorry and good luck,
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dhamilton Apr 17, 2009 11:15 AM
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Hello,
I can help you out. Contact me offline dhamilton at ntecusa.com.

Dave
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