[time-nuts] Need recommendation for GPS antenna for Oncore GPS module

Bob kb8tq kb8tq at n1k.org
Sun Nov 4 16:49:30 EST 2018


Hi

Appears to be an Italian clone of the generic timing antenna. That is only a guess and it could 
easily be something very different …. Since it’s a part made for Erickson by somebody else, 
you would need their part number to properly track it down. If it’s a custom part, even that might 
be impossible. 

Bob

> On Nov 4, 2018, at 12:57 PM, Toby Riddell <toby.riddell at prevtec.com> wrote:
> 
> I spotted this on Ebay, the price is very attractive and I saw this model
> mentioned previously in the mailing list archives:
> 
> https://www.ebay.ca/itm/Ericsson-KRE-1012082-1-GPS-Antenna-26dBi-For-HUBER-SUHNER-Bracket-84097323/272646019498?hash=item3f7af819aa:g:US8AAOSwRUhZAIhz:rk:3:pf:0&vxp=mtr
> 
> Anyone have a manual or datasheet for it? I cannot seem to find one using
> Google.
> 
> 
> On Sun, 4 Nov 2018 at 12:41, Matthew D'Asaro <medasaro at mit.edu> wrote:
> 
>> For what it is worth, I got a used HP/Symmetricom 58532a antenna off of
>> eBay for about $50. It needed a minor repair (broken internal coax) but
>> once that was done it has worked great for me. The other one I considered
>> was the 58504a but they were more expensive on the used market and didn't
>> seem as weather proof (a special weather proof cap was offered as an add-on
>> but most don't have it) so I went with the newer 58532a.
>> 
>> -Matthew D'Asaro
>> 
>>> On Nov 4, 2018, at 8:43 AM, Toby Riddell <toby.riddell at prevtec.com>
>> wrote:
>>> 
>>> Thanks Scott - I will look into getting one of those. And noted re. the
>>> roofline!
>>> 
>>>> On Sun, 4 Nov 2018 at 07:26, Scott McGrath <scmcgrath at gmail.com> wrote:
>>>> 
>>>> For timing use ideally it should be above the roofline by at least
>> several
>>>> feet otherwise satellites close to the horizon will be not be visible.
>>>> 
>>>> The generally preferred antenna is the Agilent/Keysight/Symmetricom.
>>>> 58504A antenna also any outdoor antenna made by Trimble or TrueTime as
>> long
>>>> as antenna does not use a downconverter.
>>>> 
>>>> 
>>>> 
>>>> On Nov 3, 2018, at 5:26 PM, Toby Riddell <toby.riddell at prevtec.com>
>> wrote:
>>>> 
>>>> Hi all,
>>>> 
>>>> I want to fit a GPS antenna on our house (the attic is being renovated
>> and
>>>> it just occurred to me that if I move fast I can get it done before the
>>>> walls are closed up again!)
>>>> 
>>>> I was planning on having it mounted on a south-facing wall but below the
>>>> roofline - does this sound okay for picking up satellites? It can poke
>>>> above the roofline if needed as long as the mounts are on the wall (not
>> the
>>>> top of the roof).
>>>> 
>>>> Is there a recommended antenna? I am planning on feeding it into an
>> Oncore
>>>> GPS module which will then interface to a Soekris net4501 running
>> nanoBSD
>>>> and ntpns.
>>>> 
>>>> Thanks!
>>>> 
>>>> Toby
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