[time-nuts] Followup (still want a GPS-type NTP refclock)

Sarah White kuzetsa at gmail.com
Wed Oct 17 21:19:06 UTC 2012


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Wed, Oct 17, 2012 at 12:50 AM, Sarah White <kuzetsa at gmail.com> wrote:

((...snip...)) -- my post was long. Sorry hehe.

>> 1) iLotus M12M timing mode GPS (serial port version) 2) Aprox 10
>> meter antenna cable with apropriate connector(s) 3) active
>> antenna which can handle being 10 meters from the module 4) power
>> supply for above list, and much needed luck, all for under $100
>> US

(quote block from) Chris Albertson

> Just over $100.  the M12M is about $60 new.  If you call up and
> say you are a hobbyist and heard about it on this list. Buy a
> timing antenna on eBay for about $30 You can use 30 meters of cable
> TV wire and some N to F adaptors You can power it all with a
> salvaged power cube. Then you'd need a mast for the antenna made
> with plumbing parts and misc hardware and a box for the
> electronics.   Maybe $130 if you were carful
> 
> But if you are really worried about cost buy an older Oncore.  The
> new m12m is only slightly better then the older m12+T that sells on
> eBay for $35.  The two are nearly identical.  (See item #
> 290656401551) then see item # 270881742870 for an antenna   You'd
> be just under $100 if you went this route.
> 

Hmm ok wow. That all sounds pretty good. I'm confused about one or two
things though...

1) I'm planning to mount the antenna indoors. Will be pressed up into
the skylight here in the living room / den with cable management...

Pretty sure the landlord doesn't want an antenna mast mounted on the
roof, yard, etc...

Would be scared to attempt this anyway because I don't know how to set
up a proper array of lightning rods / grounding / surge protection / etc.

2) salvaged power "cube" ... I don't really know what that means:
typically I don't go mucking around with random electronics (salvaged
or otherwise) unless it's something I understand and have experience
with. Are there ready-made power supplies known to work with M12-type
timing GPSes? The most wiring I really want to do is get a tool with
which I can crimp some antenna cable and/or install adapters on the ends.

((Digitally Signed))
Sarah White
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