John Miles wrote:
The unfortunate truth is that GPIB is actually a pretty flaky thing. It
seems there is always a certain amount of swing-a-dead-cat empiricism
involved with getting any complex GPIB hookup to work reliably.
I can't talk to my Tek 492AP SA unless I turn on the 8566B or the 8657A
From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] Off the wall: anyone with
experienceprogrammingHP3456A?
Date: Sat, 10 Sep 2005 23:26:57 +0200
Message-ID: <[EMAIL PROTECTED]>
> In message <[EMAIL PROTECTED]>, Magnus Danielson writes:
>
&
In message <[EMAIL PROTECTED]>, Magnus Danielson writes:
>> This is less of a problem with modern CMOS based interface chips.
>
>Actually, there you end up in another problem, you power the box through the
>protection diodes which you really must have for CMOS. So it is really not so
>much better,
From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] Off the wall: anyone with
experienceprogrammingHP3456A?
Date: Sat, 10 Sep 2005 23:16:59 +0200
Message-ID: <[EMAIL PROTECTED]>
> In message <[EMAIL PROTECTED]>, Magnus Danielson writes:
>
&
In message <[EMAIL PROTECTED]>, Magnus Danielson writes:
>Just look in the HP5370B service manual and you see that the GPIB interface is
>"passive" (i.e. TTL chips rather than LSI chip). It may not be the marvel of
>modernism.
Some of the smaller devices, like the VHF switches, the entire GPIB in
From: "John Miles" <[EMAIL PROTECTED]>
Subject: RE: [time-nuts] Off the wall: anyone with
experienceprogrammingHP3456A?
Date: Sat, 10 Sep 2005 12:20:11 -0700
Message-ID: <[EMAIL PROTECTED]>
> The unfortunate truth is that GPIB is actually a pretty flaky thing. It
In message <[EMAIL PROTECTED]>, "John Miles" writes:
>The unfortunate truth is that GPIB is actually a pretty flaky thing. It
>seems there is always a certain amount of swing-a-dead-cat empiricism
>involved with getting any complex GPIB hookup to work reliably.
>
>I can't talk to my Tek 492AP SA
; Sent: Saturday, September 10, 2005 11:24 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Off the wall: anyone with
> experienceprogrammingHP3456A?
>
>
> In message <[EMAIL PROTECTED]>, John Ackermann N8UR writes:
>
> >
