[time-nuts] True position unlocking

[Mark Goldberg]

I am using a Motorola / Pctel 8508851k66 / 3226MSMA that is supposed to be
a 26 dB gain antenna with an HP 58515A splitter that provides +3 dB +/- 3
dB. It has a clear view of about 1/2 the sky.

Regards,

Mark


On Tue, Apr 9, 2019 at 11:06 PM Taka Kamiya <tkamiya9 at yahoo.com> wrote:

> I have a bullet type 26dB gain antenna in attic.  It goes through
> hard-line then into Symetricon 4 way splitter, and one of the port is
> connected to True Position.  My splitter has zero gain per port (ie. each
> port has exactly the same level as the input)
>
> I have on my plan to install 40dB type and do so outside.  Maybe that's a
> solution?  I didn't think about this because all other GPDSO locks just
> fine.
>
> ---------------------------------------
> (Mr.) Taka Kamiya
> I'm stuck in a wormhole....  Hello, worms!
>
>
> On Wednesday, April 10, 2019, 1:30:42 AM EDT, Mark Goldberg <
> marklgoldberg at gmail.com> wrote:
>
>
> What kind of antenna and where is it located? I have a trueposition and it
> seems to need a higher gain antenna than my other gpsdo, a modern Bodnar. I
> put it outside with an amplified splitter and it works well.
>
> When using another antenna or this one on the windowsill, it went into
> holdover fairly often.
>
> Regards,
>
> Mark
>
> On Tue, Apr 9, 2019, 6:00 PM Taka Kamiya via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
> I have a few Tru-Position boards.  This is an older older GPSDO board for
> telecom industries.  I am using this with LadyHeather.
>
> All hooked up, it locks and works; but, quite often Lady Heather shows the
> red line in graph, showing it is unlocked.  I have several GPSDO board
> here, and for all others, antenna and signal strength are just fine.
> Ambient temperatures are "human comfortable".
> I am concerned with this frequent unlock.  It happens few times a day and
> it will eventually RE-locks.
> Does anybody know what is happening?
>
> ---------------------------------------
> (Mr.) Taka Kamiya
> I'm stuck in a wormhole....  Hello, worms!
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