[time-nuts] Questions about Austron 5000 Loran C receiver

[paul swed]

An additional thought.
The third cycle is not the thing you would see on a scope looking at the
raw signal. The rcvr determines when the signal has risen above 0. That may
be 1 to 2 really small cycles. Its from that point its the 3rd crossing.
Normally there is a gate out signal thats useful to trigger the scope with.
Regards
Paul



On Sat, Apr 13, 2013 at 10:55 AM, paul swed <paulswedb at gmail.com> wrote:

> Its a master timing rcvr from the simple research I have done. Must be
> fallout from the US LORAN C shut down. Anyhow The whole signal spec is here.
> http://www.navcen.uscg.gov/?pageName=loranSignalSpec
> Its a 8 MB zip
> I have done the 2000 procedure and it is complicated to say the least.
> Given the vintage of the 5000 it might be the same. But that was quite a
> while ago.
> Are you in the US?
> Regards
> Paul
>
>
> On Sat, Apr 13, 2013 at 9:21 AM, Rob Kimberley <
> robkimberley at btinternet.com> wrote:
>
>> Hi,
>>
>> I don't know this model from Austron, but you could try asking fellow Time
>> Nuts if anyone has a manual for the 5000 which should include the full
>> calibration procedure.
>>
>> I know on the Austron 2000C the calibration procedure was quite a long to
>> set it up correctly. I'm sure that the 5000 will be similar.
>>
>> Rob
>>
>> -----Original Message-----
>> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
>> Behalf Of mehdi
>> Sent: 13 April 2013 13:08
>> To: time-nuts at febo.com
>> Subject: Re: [time-nuts] Questions about Austron 5000 Loran C receiver
>>
>>
>> > >hi dears
>> i'm newer here.
>> i have some questions about loran-c receiver.can you help me?
>> i want to know how can i find third zero crossing in loran-c receiver?
>> i find third zero cross by peterson 's method from this paper:
>> Analysis of Noise and Cycle Selection in a Loran Receiver but due to
>> Gausian
>> noise,when i find third zero cross,it is not correct and it is before or
>> after correct third zero cross.i want to know how can i track and correct
>> third zero cross?(in other words what is acquisition in loran-c receivers
>> and how can i do?) have you any matlab code or papers or thesis for this
>> problems?
>> pleassssssssssssse help me?
>> :(
>> thanks a lot
>>
>> >
>> >
>>
>>
>>
>>
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>