[time-nuts] My stubborn Z3801A
Bob Camp
lists at rtty.us
Tue Jun 15 02:51:16 UTC 2010
Hi
... and Z38XX has nice things like error logs and serial transaction windows that are *very* nice for debugging problems.
Bob
On Jun 14, 2010, at 9:12 PM, Adrian wrote:
> Bob,
>
> as by the Z3801 manual, the (RS422) port (of your PC) has to match the following settings:
> Pace: None
> Baud Rate: 19200
> Parity: Odd
> Data Bits: 7/chr
> Start Bits: 1
> Stop Bits: 1
> There is no auto interface configuration mode inside the 3801. If the settings are wrong or the cable isn't correct, nuthing's gonna happen.
> When you have installed SatStat on your PC, check if the default settings are correct, and select the COM port of your PC that you have connected the cable to.
> If everything is right, select Comm Port -> Port Open. After a while, communication with the 3801 should be established, and the main form should begin to periodically update every few seconds.
> Shoot me a PM if you don't have the manual.
>
> Btw. I've now installed Ulrich's superb Z38XX that is much more versatile than the basic SatStat.
>
> Adrian
>
>
>
> Robert Benward schrieb:
>> Adrian,
>> I thought that was for the Satstat, is the 3801 auto sensing? Don't you need to send a command?
>>
>> Bob
>>
>> ----- Original Message ----- From: "Adrian" <rfnuts at arcor.de>
>> To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
>> Sent: Monday, June 14, 2010 5:29 AM
>> Subject: Re: [time-nuts] My stubborn Z3801A
>>
>>
>>> It's in the same menu where you start / stop communication, just below the 'Port Open' command.
>>>
>>> CommPort > Settings > Baud Rate
>>>
>>> Adrian
>>>
>>> Robert Benward schrieb:
>>>> The minimum voltage is +/-3 volts, I'm getting about +/-6 right now.
>>>>
>>>> How does one change the serial port speed, I don't see anything in SatStat.
>>>> Bob
>>>>
>>>>
>>>> ----- Original Message ----- From: "John Miles" <jmiles at pop.net>
>>>> To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
>>>> Sent: Sunday, June 13, 2010 8:21 PM
>>>> Subject: Re: [time-nuts] My stubborn Z3801A
>>>>
>>>>
>>>>>
>>>>>> Still to go: The RS-232 signals look fine going into the cable,
>>>>>> +/-5V, any
>>>>>> ideas why the computer won't read it? Am I missing something? I
>>>>>> tried two
>>>>>> different ports in case I screwed one up one of the ports, but no luck.
>>>>>
>>>>> Haven't been following the thread so someone may have suggested this before,
>>>>> but: try another computer, a shorter cable, or perhaps a slower baud rate.
>>>>> 5 volts is near the bottom of the range for RS232 (the signalling levels are
>>>>> supposed to be closer to +/- 15V, or at least +/- 12V).
>>>>>
>>>>> Some RS-232 gear is happy with 5V but it isn't optimal in all cases. The
>>>>> problem you mention is more likely to be either a physical or protocol-level
>>>>> mismatch than a real hardware fault.
>>>>>
>>>>> -- john, KE5FX
>>>>>
>>>>>
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>
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