Ok   I took out the offset, precision, and delay.  I let everything
stabilize a bit and then took 3 samples.   Here's what it came up with.

$ date && chronyc sources
Tue  9 Aug 08:54:52 EDT 2016
210 Number of sources = 5
MS Name/IP address         Stratum Poll Reach LastRx Last sample

===============================================================================
#* GPS                           0   4   377    15  +1479us[+1575us] +/-
 522us
^? clockb.ntpjs.org              0   6     0     -     +0ns[   +0ns] +/-
 0ns
^- proxmox.undeadarmy.com        2   6     7     8    -63ms[  -63ms] +/-
87ms
^- host2.kingrst.com             2   6     7     9    -72ms[  -72ms] +/-
91ms
^- clock.xmission.com            1   6     7     8    -65ms[  -65ms] +/-
41ms

irishmistii@IrishMistII:~ $ date && chronyc sources
Tue  9 Aug 08:55:00 EDT 2016
210 Number of sources = 5
MS Name/IP address         Stratum Poll Reach LastRx Last sample

===============================================================================
#* GPS                           0   4   377    12   -606us[-1568us] +/-
 422us
^? clockb.ntpjs.org              0   6     0     -     +0ns[   +0ns] +/-
 0ns
^- proxmox.undeadarmy.com        2   6     7    16    -62ms[  -63ms] +/-
87ms
^- host2.kingrst.com             2   6     7    16    -71ms[  -72ms] +/-
91ms
^- clock.xmission.com            1   6     7    16    -64ms[  -65ms] +/-
41ms

irishmistii@IrishMistII:~ $ date && chronyc sources
Tue  9 Aug 08:55:08 EDT 2016
210 Number of sources = 5
MS Name/IP address         Stratum Poll Reach LastRx Last sample

===============================================================================
#* GPS                           0   4   377    20   -606us[-1568us] +/-
 422us
^? clockb.ntpjs.org              0   6     0     -     +0ns[   +0ns] +/-
 0ns
^- proxmox.undeadarmy.com        2   6     7    24    -62ms[  -63ms] +/-
87ms
^- host2.kingrst.com             2   6     7    25    -71ms[  -72ms] +/-
91ms
^- clock.xmission.com            1   6     7    24    -64ms[  -65ms] +/-
41ms




On Tue, Aug 9, 2016 at 8:10 AM, Chris Greenman <chris.m.green...@gmail.com>
wrote:

> Thanks.  I already enabled my NTP sources and you're right, the gps is
> getting marked as bad.  I'll play with that today.
>
> Chris
>
> On Aug 9, 2016 4:42 AM, "Miroslav Lichvar" <mlich...@redhat.com> wrote:
>
>> On Mon, Aug 08, 2016 at 01:21:56PM -0400, Chris Greenman wrote:
>> > 210 Number of sources = 1
>> > MS Name/IP address         Stratum Poll Reach LastRx Last sample
>> >
>> > ============================================================
>> ===================
>> > #* GPS                           0   4   377    17   +296us[ +347us] +/-
>> >  200ms
>> >
>> >
>> > I am perfectly happy with 200ms error in time.   That more than suits my
>> > needs.
>>
>> You might want to try this with some NTP sources and see how accurate
>> is the GPS time source. From that you would adjust the offset value on
>> the refclock SHM line so the the error is reduced and the GPS source
>> is not marked as a falseticker when there are other source. I'd also
>> suggest to add "minsamples 64" to the refclock directive, so chronyd
>> doesn't try to follow short-term variations in the measured offset
>> (the error in the message based GPS time tends to be non-random).
>>
>> --
>> Miroslav Lichvar
>>
>> --
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>>
>>

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