[time-nuts] [Fwd: Re: Simulating LORAN-A GRI Timing Generator]

2011-01-08 Thread J. Forster
Pondering some more on this, doing some calculations (spread-sheets) the actual scheme emerge... the range of 0 to 7 is not selected by accident. The base pulse repetition rate is 30 ms, 40 ms and 50 ms. The pulse repetition rate modifiers modifies the repetition rate by -100 us per step. It

Re: [time-nuts] [Fwd: Re: Simulating LORAN-A GRI Timing Generator]

2011-01-08 Thread paul swed
Well I might be crazy but this seems perhaps easy since reading the link provided. The slaves listened to the master and provided a pulse. So for at least a rate 1 chip could do the job. Essentially the master pulse and then a delay to the slave position. If I am interpreting the info correct the

Re: [time-nuts] [Fwd: Re: Simulating LORAN-A GRI Timing Generator]

2011-01-08 Thread Magnus Danielson
John, On 08/01/11 16:08, J. Forster wrote: Pondering some more on this, doing some calculations (spread-sheets) the actual scheme emerge... the range of 0 to 7 is not selected by accident. I had essentially the same spread sheet... However, how would you be able to achieve simplicity of

Re: [time-nuts] [Fwd: Re: Simulating LORAN-A GRI Timing Generator]

2011-01-08 Thread paul swed
So if I read the excel correctly you only actually need 1 system. Say H0 is the master then the delays for H1-X is how far away from the master the pulse would be. More importantly you would only need 2 other of the Hs to create a navigational fix. Is this a correct interpretation? Have to go dig

Re: [time-nuts] [Fwd: Re: Simulating LORAN-A GRI Timing Generator]

2011-01-08 Thread J. Forster
John, On 08/01/11 16:08, J. Forster wrote: Pondering some more on this, doing some calculations (spread-sheets) the actual scheme emerge... the range of 0 to 7 is not selected by accident. I had essentially the same spread sheet... However, how would you be able to achieve simplicity of

Re: [time-nuts] [Fwd: Re: Simulating LORAN-A GRI Timing Generator]

2011-01-08 Thread J. Forster
My belief is, if you were looking at the H0 Master, and H0 has two Slaves, the two TDs (one to each slave) is sufficient to give you a position fix. LORAN-A stations were closer together than LORAN-C (maybe 600 mi). Nothing I have read to date indicated there were more than 2 Slaves per Master.