[time-nuts] Z3805, Port 2
BD Systems Inc.
bdsysco at yahoo.com
Thu Apr 4 17:35:24 EDT 2013
See below:Broadcast (Continuous Output) Mode:
The Serial Port (Port 2) interface is used by
the GPS Receiverto broadcast
the time of day and abbreviated status once every two seconds on the even
second. The length of the transmission is 16 bytes and is partially decoded
below (The data is shown in Hex):
00 09 01 07 03
01 04 04 00 02 03 01 03 00 00 0D
All numerical data is transmitted as a single
byte per digit, i.e. digit 9 is transmitted as 09 Hex.
Bytes 1-2 are two least significant digits of
the Year (00 09) 2009.
Bytes 3-5 are the numerical Day of the Year
(01 07 03) or day 173 (June 22).
Bytes 6-7 are the Hour (01 04), hour 14 or 2
PM.
Bytes 8-9 are the Minute (04 00), minute
40.
Bytes 10-11 are the Second (02 03), second
23.
Bytes 12-13 are the Accumulated Leap Seconds
(01 03), 13 leap seconds.
Bytes 14-15 SmartClock Mode or
Status:
01 00: Power-Up Mode
10 00 Holdover Mode
00 00 GPS Lock Mode
Byte 16 is a Carriage Return (0D).
Under the example above, the Date and Time is
June 22, 2009 (day 173) at 14:40:23, and no Holdover.
On the Port
2serial interface, the serial port parameters are
fixed at 9600, N, 8, 1and
cannot be changed. Although the Port 2connector is wired for Receive Data (pin
3) it does not appear that the GPS Receiverwill accept any commands.
All commands must be issued over the Port
1serial interface connector.
Chuck Zabilski
BD Systems, Inc.
________________________________
From: "time-nuts-request at febo.com" <time-nuts-request at febo.com>
To: time-nuts at febo.com
Sent: Thursday, April 4, 2013 10:00 AM
Subject: time-nuts Digest, Vol 105, Issue 10
Send time-nuts mailing list submissions to
time-nuts at febo.com
To subscribe or unsubscribe via the World Wide Web, visit
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
or, via email, send a message with subject or body 'help' to
time-nuts-request at febo.com
You can reach the person managing the list at
time-nuts-owner at febo.com
When replying, please edit your Subject line so it is more specific
than "Re: Contents of time-nuts digest..."
Today's Topics:
1. Re: Z3805A Port 2. (Herbert Poetzl)
2. Re: Z3805A Port 2. (Jim Lux)
----------------------------------------------------------------------
Message: 1
Date: Thu, 4 Apr 2013 16:52:14 +0200
From: Herbert Poetzl <herbert at 13thfloor.at>
To: Discussion of precise time and frequency measurement
<time-nuts at febo.com>
Subject: Re: [time-nuts] Z3805A Port 2.
Message-ID: <20130404145214.GD8336 at MAIL.13thfloor.at>
Content-Type: text/plain; charset=us-ascii
On Thu, Apr 04, 2013 at 02:32:09PM +0000, Mark C. Stephens wrote:
> I wanted to have a look at what the Z3805A puts out on Port 2.
> I can see the LEDS flickering on the BOB so its saying something.
> I connected up a terminal program set to 96008N1 and it seems there is nothing.
> So I plugged the cable into port one to check the settings:
> scpi > syst:comm:ser2:pace?
> NONE
> scpi > syst:comm:ser2:baud?
> +9600
> scpi > syst:comm:ser2:parity?
> NONE
> scpi > syst:comm:ser2:bits?
> +8
> scpi > syst:comm:ser2:sbits?
> +1
> So Serial 2 is definitely 96008N1.
> Nothing displays on the terminal program so I used a serial
> port monitor program and I see this recurring data:
> 01 03 00 09 04 01 04 02 08 02 06 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 02 08 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 03 00 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 03 02 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 03 04 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 03 06 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 03 08 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 04 00 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 04 02 01 06 00 00 0D
> 01 03 00 09 04 01 04 02 08 04 04 01 06 00 00 0D
1 3 0 9 4 1 4 2 8 4 4 = 1309412844
> I can see its transmitting the even second time but what format
> is this and how can I use it?
$ date +"%s" # unix time (seconds since Jan, 1st, 1970)
1365086814
so, my guess is, it is seconds since some point in
time in decimal.
HTH,
Herbert
> Mark
> Vk2hmc
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
------------------------------
Message: 2
Date: Thu, 04 Apr 2013 08:28:58 -0700
From: Jim Lux <jimlux at earthlink.net>
To: time-nuts at febo.com
Subject: Re: [time-nuts] Z3805A Port 2.
Message-ID: <515D9C3A.6040907 at earthlink.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 4/4/13 7:52 AM, Herbert Poetzl wrote:
> On Thu, Apr 04, 2013 at 02:32:09PM +0000, Mark C. Stephens wrote:
>> I wanted to have a look at what the Z3805A puts out on Port 2.
>
>> I can see the LEDS flickering on the BOB so its saying something.
>> I connected up a terminal program set to 96008N1 and it seems there is nothing.
>> So I plugged the cable into port one to check the settings:
>> scpi > syst:comm:ser2:pace?
>> NONE
>> scpi > syst:comm:ser2:baud?
>> +9600
>> scpi > syst:comm:ser2:parity?
>> NONE
>> scpi > syst:comm:ser2:bits?
>> +8
>> scpi > syst:comm:ser2:sbits?
>> +1
>> So Serial 2 is definitely 96008N1.
>
>> Nothing displays on the terminal program so I used a serial
>> port monitor program and I see this recurring data:
>
>> 01 03 00 09 04 01 04 02 08 02 06 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 02 08 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 03 00 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 03 02 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 03 04 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 03 06 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 03 08 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 04 00 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 04 02 01 06 00 00 0D
>> 01 03 00 09 04 01 04 02 08 04 04 01 06 00 00 0D
>
> 1 3 0 9 4 1 4 2 8 4 4 = 1309412844
>
>> I can see its transmitting the even second time but what format
>> is this and how can I use it?
>
> $ date +"%s" # unix time (seconds since Jan, 1st, 1970)
> 1365086814
>
> so, my guess is, it is seconds since some point in
> time in decimal.
>
perhaps since week 0 (6 Jan 1980)
------------------------------
_______________________________________________
time-nuts mailing list
time-nuts at febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
End of time-nuts Digest, Vol 105, Issue 10
******************************************
More information about the time-nuts
mailing list