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[LorenzoS]

hi, i want to ask you , in the gps MR-350P the 1PPS TTL output, it's always enabled or must be enabled ?
other question the 1PPS output it's available only after the gps fix ?
thanks very much

[USG_TECH9]

Hello Lorenzo,

The PPS output is always enabled.  However, you need a gps fix to access it.

[jdeitch2]

Hello Lorenzo,

The PPS output is always enabled.  However, you need a gps fix to access it.

What are the specs on the PPS signal?  Duration, voltage, etc?

Thanks,
Jim

[GS_TECH01]

The PPS Pulse is HIGH for every 1 second  and it stays for 1 microsecond. The voltage is about 2.85V.

Let me know if you have any questions.

[jdeitch2]

So it is a TTL level signal for 1 microsecond with LOW to HIGH representing the second mark correct?

The PPS Pulse is HIGH for every 1 second  and it stays for 1 microsecond. The voltage is about 2.85V.

Let me know if you have any questions.

[GS_TECH01]

According to our engineers with regards to TTL signal, 0 to +0.8 volts is defined as logic level 0 and +2.0 to +5 volts as logic level 1 for TTL input signal. On the other hand,  0 to +0.4 volts is defined as level 0 for TTL output signal.

Let us know if you have any questions.