[time-nuts] Looking for 468-DC GOES receiver info

Mike Feher mfeher at eozinc.com
Thu Feb 17 15:29:55 EST 2005


Tom -

If you remember I wrote to you about problems with my GOES 468DC problems
some months ago stating I lost lock. Well, after a few days it came back on.
Since then it has still been intermittent on the East bird. At one point
about a week ago I totally lost it long enough that the display went blank.
So, for a few days all there was were the blinking LEDs. Then, it
re-acquired, came up with the proper day and time and has been running ever
since. So, for now at least, it still seems to be working for me. Regards -
Mike

 
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
 
 

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Tom Van Baak
Sent: Thursday, February 17, 2005 8:42 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Looking for 468-DC GOES receiver info

Hi Kevin,

I can send you a 468-DC manual but you may have
missed the announcement that after 30 years the
GOES timecode was turned off. So you can still get
RF lock and the 100 Hz subcode is there there but
the NIST timecode portion of the timecode is no
longer present.

http://www.boulder.nist.gov/timefreq/service/goesnotice.htm

If you're getting a UTC time out of yours let me know
(and East or West?); mine went off the air on Jan 1
and they're still dead.

/tvb

----- Original Message -----
From: <kevin-usenet at horizon.com>
To: <time-nuts at febo.com>
Sent: Wednesday, February 16, 2005 21:53
Subject: [time-nuts] Looking for 468-DC GOES receiver info


> I was just fiddling with a 468-DC GOES receiver that had been knocked
> out of alignment by last summer's hurricanes.  Thanks to TVB for
> http://www.leapsecond.com/museum/468-dc/theory.htm
> which helped immensely (particularly the bit about TP2 and the unlock
LED).
>
> I know GOES time is now in legacy mode with only +/-1 ms accuracy,
> but I thought it would be fun to hook it up to an NTP server anyway.
>
> I have satellite lock, time displayed, and 1 PPS and 1 kHz coming out the
> back.  However, I don't see anything on the IRIG output or the serial
port.
> (And the EXT OSC input is a mystery.)
>
> Looking at the NTP driver, I tried connecting at 9600 8N1 and sending
> various letters, but no response.  (The port probed as DTE, so I used
> a crossover cable.)
>
> Does anyone have any use or debugging information or manuals?
>
> Thanks!
>
> _______________________________________________
> time-nuts mailing list
> time-nuts at febo.com
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>



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