[time-nuts] Ublox F9P multi-band GPS receiver
Angus
not.again at btinternet.com
Wed Jan 23 23:51:50 UTC 2019
Hi,
It doesn't look like the F9P does anything special for timing - the
timing specs given in the F9T spec sheet are 5 ns (1-sigma, clear sky,
absolute mode) and +/- 4ns jitter, but for the F9P are 30ns RMS and
60ns for 99%.
I think I want an F9T :)
Angus.
On Mon, 21 Jan 2019 09:00:33 -0500, you wrote:
>Hi
>
>Ok, so the product summary page on DigiKey very clearly shows the
>frequency coverage information. If that data sheet was on SparkFun
.
>I must have gone right past it.
>
>The equivalent F9T sheet starts out right at the top talking about correcting
>ionosphere delay to deliver better timing. One would *assume* the F9P
>does the same thing. It never seems to show up in quite the same big bold
>print
.
>
>Bob
>
>> On Jan 21, 2019, at 8:44 AM, Bob kb8tq <kb8tq at n1k.org> wrote:
>>
>> Hi
>>
>>
>>> On Jan 21, 2019, at 1:41 AM, Mark Sims <holrum at hotmail.com <mailto:holrum at hotmail.com>> wrote:
>>>
>>>> It is clearly multi-band for GPS. It is unclear from a quick read if it is multi-band for the other systems.
>>>
>>> Here's what they say it supports:
>>>
>>> 184-channel u-blox F9 engine
>>> GPS L1C/A L2C,
>>> GLO L1OF L2OF,
>>> GAL E1B/C E5b,
>>> BDS B1I B2I,
>>> QZSS L1C/A L2C
>>
>> If thats in the docs on the module, I missed it. My concern is the frequency range of the front end
>> SAWs (that are external to the chip set).
>>
>>>
>>> Here's the link to the Sparkfun device. I think it uses a u.FL antenna connector.
>>> https://www.sparkfun.com/products/15136 <https://www.sparkfun.com/products/15136>
>>
>> Yup and they arent crazy expensive compared to the module. The usual auction sites also have
>> the same sort of thing for a bit less money.
>>
>> Bob
>>
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>
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