I am thinking of acquiring a couple of the Jackson Labs M12M replacement receivers to use with my RTCM units. It appears that they might greatly simplify the process obtaining a GPS derived 1 PPS signal, especially for temporary / portable repeaters that require voting receivers. They are currently available for under $200 per unit, shipped.
These were designed as a retrofit for a specific earlier GPS receiver but they appear to be potentially useful to supply at least the 1 PPS signal required by the RTCM. They might also act as a frequency standard for simulcast, although they may not have the oscillator required to provide a stable frequency source in the event of loss of GPS signal.
Does it appear that these units would work? Has anyone experimented with this or similar units with the RTCM?
I am thinking of acquiring a couple of the Jackson Labs M12M replacement receivers to use with my RTCM units. It appears that they might greatly simplify the process obtaining a GPS derived 1 PPS signal, especially for temporary / portable repeaters that require voting receivers. They are currently available for under $200 per unit, shipped.
These were designed as a retrofit for a specific earlier GPS receiver but they appear to be potentially useful to supply at least the 1 PPS signal required by the RTCM. They might also act as a frequency standard for simulcast, although they may not have the oscillator required to provide a stable frequency source in the event of loss of GPS signal.
Does it appear that these units would work? Has anyone experimented with this or similar units with the RTCM?
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I've seen these work well. Cheaper at other sources. No 10mhz but
does 1pps. Ymmv..
Sam
On Oct 8, 2015 10:35, "Frederick Bray" <fwbray@mminternet.com > <mailto:fwbray@mminternet.com>> wrote:
I am thinking of acquiring a couple of the Jackson Labs M12M
replacement receivers to use with my RTCM units. It appears that
they might greatly simplify the process obtaining a GPS derived 1
PPS signal, especially for temporary / portable repeaters that
require voting receivers. They are currently available for under
$200 per unit, shipped.
These were designed as a retrofit for a specific earlier GPS
receiver but they appear to be potentially useful to supply at
least the 1 PPS signal required by the RTCM. They might also act
as a frequency standard for simulcast, although they may not have
the oscillator required to provide a stable frequency source in
the event of loss of GPS signal.
Does it appear that these units would work? Has anyone
experimented with this or similar units with the RTCM?
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On Oct 8, 2015 10:35, "Frederick Bray" > <fwbray@mminternet.com > > wrote:
I am
thinking of acquiring a couple of the Jackson Labs M12M
replacement receivers to use with my RTCM units. It appears
that they might greatly simplify the process obtaining a GPS
derived 1 PPS signal, especially for temporary / portable
repeaters that require voting receivers. They are currently
available for under $200 per unit, shipped.
[http://www.jackson-labs.com/assets/uploads/main/M12M_replacement_Specsheet.pdf](http://www.jackson-labs.com/assets/uploads/main/M12M_replacement_Specsheet.pdf)
[http://www.jackson-labs.com/assets/uploads/main/M12M_replacement_UserManual.pdf](http://www.jackson-labs.com/assets/uploads/main/M12M_replacement_UserManual.pdf)
These were designed as a retrofit for a specific earlier GPS
receiver but they appear to be potentially useful to supply at
least the 1 PPS signal required by the RTCM. They might also
act as a frequency standard for simulcast, although they may
not have the oscillator required to provide a stable frequency
source in the event of loss of GPS signal.
Does it appear that these units would work? Has anyone
experimented with this or similar units with the RTCM?
Thanks.
KE6CD
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