[time-nuts] timelab

Don Latham djl at montana.com
Thu Jul 5 04:37:05 UTC 2012


Thanks, John. When I did the 1sec pulse start vs next 10 MHz crossing
trick, I got very reliable behavior. When I tried the start on 10 MHz
stop on 100 ft RG58 delay, I got communication loss. You've given the
symptom and cause exactly.
I can set the data rate in the sample text box in the acquire window
until I get bad behavior, and I see that using the auto set feature can
get unstable.
Would it be better to use the sample rate on the 5370 to control?
Thanks VERY much for giving us use of your program!
Don

John Miles
> Hi, Don --
>
> You can view all of the measurement types (ADEV, MDEV, HDEV, TDEV, phase
> difference, frequency difference) regardless of whether you are
> acquiring TI
> or frequency data from the 5370.  The performance floor will be somewhat
> better in TI mode, and long-term frequency chart readings will be more
> accurate, but that's it.
>
> It can be tricky to get reliable operation out of the GPIB-Ethernet
> adapter
> unless you use a relatively low data rate from the 5370.  If data comes
> in
> too fast, the adapter can lock up until the next power cycle.  And/or it
> will be necessary to power-cycle the counter, as you noticed.
>
> -- john, KE5FX
> www.miles.io
>
>> -----Original Message-----
>> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]
>> On
>> Behalf Of Don Latham
>> Sent: Wednesday, July 04, 2012 4:32 PM
>> To: time nuts
>> Subject: Re: [time-nuts] timelab
>>
>> Got it going---doesn't take adev data in frequency mode but time
>> interval working fine.
>> Don
>>
>>
>>
>> --
>> "Neither the voice of authority nor the weight of reason and argument
>> are as significant as experiment, for thence comes quiet to the mind."
>> R. Bacon
>> "If you don't know what it is, don't poke it."
>> Ghost in the Shell
>>
>>
>> Dr. Don Latham AJ7LL
>> Six Mile Systems LLP
>> 17850 Six Mile Road
>> POB 134
>> Huson, MT, 59846
>> VOX 406-626-4304
>> www.lightningforensics.com
>> www.sixmilesystems.com
>>
>>
>>
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>
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-- 
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
R. Bacon
"If you don't know what it is, don't poke it."
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com





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