Have you looked at the serial connector with an oscilloscope? Pin 2 should
be the output data. Pin 3 is for data going into the GPS. And pin 7 is
ground. I use Z3801A systems which have a 25-pin connector. Other systems
use a 9-pin serial connector. The only difference should be the ground
which is on pin 5 for the 9-pin connector. Have you looked at:
http://www.realhamradio.com/GPS_Frequency_Standard.htm
John WA4WDL
--------------------------------------------------
From: "Robert Benward" <[email protected]>
Sent: Saturday, May 22, 2010 3:07 PM
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Subject: Re: [time-nuts] Z3805 utility, Was: AW: (no subject)
Hi All,
I hooked everything up and I still get nothing. I can't seem to establish
communications with the Z3805. I tried a null modem as well, in case the
cable (supplied) was wired with the wrong connector gender. I see a green
blinking light inside, it he left rear corner of the box. Everything is
warm, but nothing else. Any ideas?
Bob
----- Original Message -----
From: "Robert Benward" <[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Sent: Saturday, May 22, 2010 9:49 AM
Subject: Re: [time-nuts] Z3805 utility, Was: AW: (no subject)
Hi Ulrich,
Thank you for your response. I hope to try it today if I can get away
from household duties. Will I need to leave the computer hooked up, or
will it run stand alone once I set it up?
Thanks,
Bob
----- Original Message -----
From: "Ulrich Bangert" <[email protected]>
To: "'Discussion of precise time and frequency measurement'"
<[email protected]>
Sent: Saturday, May 22, 2010 5:50 AM
Subject: [time-nuts] Z3805 utility, Was: AW: (no subject)
Bob,
everything you need for the Z3805 is included in my Z38XX utility, that
has
already been mentioned. This includes sending commands to the receiver,
you
do not need another terminal program. I own a Z3805 myself and basically
I
have written the software for myself. A Z3801 manual in conjunction with
Z38XX should take you pretty far in either get it to run or otherwise
diagnose a fault.
Best regards
Ulrich Bangert
-----Ursprungliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Robert Benward
Gesendet: Samstag, 22. Mai 2010 03:15
An: [email protected]
Betreff: [time-nuts] (no subject)
Hi,
I just purchased a Z3805A at the Dayton hamfest this past
weekend. How do I
get it to work? Do I need software to run this, or can it
run stand alone.
I have turned it on, but only the power light comes on, the
GPS lock, and
more importantly, the enable light is not on. There is an
10MHz output, but
the holdover light is not on. Is there any freeware available? Any
recommendations?
Any opinions on this one:
http://cgi.ebay.com/GPS-Receiver-Program-HP-Z3801A-Z3805A-Z381
6A-58540A-/250566043297?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item3a56e666
a1
Thank you in advance.
Bob
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