[time-nuts] RS232 output on a 53181A

Bob kb8tq kb8tq at n1k.org
Wed Jul 12 14:54:56 EDT 2017


There may well be multiple EEROM’s in the 53181 and 5313x counters. At least 
when I have blown up the EEPROM in them, it comes back with a error. I haven’t 
blown any up since the early 1980’s so I don’t quite remember the exact error 
message involved. Had it simply failed silently, I would have never noticed the problem.


> On Jul 12, 2017, at 10:39 AM, Angus <not.again at btinternet.com> wrote:
> Hi,
> I've just been using an Agilent 53181A, but the serial output is not
> quite what I had expected. On the 53131A's that I've used the
> placeholder character on the RS232 output is an asterisk, but with
> this unit it is a lower case 'p'. Where the 53131A sends '2,*** u',
> this 53181A send '2,ppp u'. The only references to a placeholder that
> I saw in the manuals referred to an asterisk.
> The firmware version is 4613.
> Anyway, just wondering if anyone knows if this is correct, or maybe
> it's just the EPROM starting to fail.
> Thanks,
> Angus.
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