[LinuxPPS] Refclock for Rodolpho

[Remco dB]

Hal, 

Send me one of your UT+'s and the MCX - BNC pigtail (although is not really 
necessary, I have enough teflon coax and female BNC-cable chassis 
connectors). I have a case, RS232-iface (is very simple) and will acquire an 
antenna, and ship it to Rodolfo as a tested (and thus working) setup. 

I just made a system for somebody else this way. 

Remco




On Monday 05 January 2009 23:32:15 Hal V. Engel wrote:
> As most of you know Rodolpho does not have a reference clock to use for
> testing.  In November I acquired some additional Oncore UT+ modules (ebay
> for $15 each plus shipping which totaled about $18 each) and I sent an
> email to Rodolpho offering to build him a reference clock from one of these
> units. However I could not supply him with an antenna or serial cable for
> the unit. With all of the components involved (Oncore, TTL to RS232
> converter, wire, ply wood for the box, connectors ...) it costs me about
> $40 to build one of these not including my labor.
>
> He replied that he was interested but did not have an antenna although he
> did have a serial cable.  Because he did not have an antenna he could not
> accept the unit at that time.  The unit I was working on for Rodolpho is
> now connected to my step son's computer and is working nicely.
>
> I have more modules and a supply of most of the components and materials
> needed to build another unit.  And I will be putting together another
> refclock over the next week or so.  Again if Rodolpho wants this unit it is
> his but if not it will be a spare unit for me.  However he still needs an
> antenna to be able to use it.  If anyone here has an antenna that will work
> that they would like to donate to Rodolpho please let it be known since I
> would like to get Rodolpho a working reference clock at some point.
>
> The Oncore needs an amplified antenna with an MCX connector but I can also
> put an MCX to BNC pigtail on the refclock's rear panel if that is what
> someone has.  Actually using the BNC connector would be preferred since
> this would also create a build in strain relief since the connector would
> be anchored to the rear panel.   The gain at the receiver connector needs
> to be between 10db and 33db according to the Oncore manual.  Almost any
> amplified antenna with the right connector should work even one of those
> patch antennas if it can be placed near a south facing window or, better
> still, outside with a clear view of the south sky.
>
> Hal
>
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