[time-nuts] Which GPS receiver?

[Reeves Paul]

Hello Murray,

The ublox LEA-5T does not have the RAW data output facility of the LEA-4T,
otherwise they are pretty much a drop-in replacement. This might be
significant in some cases (and means I won't be giving up my LEA-4T system
just yet...). I have a -5T on order and it will be interesting to compare
them (they are both the same price). Very nice reliable modules, good
documentation.

73s
Paul,  G8GJA

-----Original Message-----
From: Murray Greenman [mailto:Murray.Greenman at rakon.com]
Sent: 10 September 2008 20:57
To: df6jb at ulrich-bangert.de
Cc: time-nuts at febo.com
Subject: [time-nuts] Which GPS receiver?


Ulrich,

Living where you do, I'd suggest checking out the U-BLOX range of
modules. The model you need is the LEA-5T. The LEA-5 family is
state-of-the-art, and I believe uses an ATMEL DSP software baseband
engine (with reportedly one million correlators!)

I have two of their modules (LEA-5H and LEA-5P) here for evaluation, and
they are impressive. Unfortunately they didn't send me the timing
version!

See http://www.u-blox.com/products/lea_5t.html
and http://www.u-blox.com/products/evk_5t.html

This module has self-survey, single-satellite mode, 15ns timing accuracy
and a configurable time pulse. The easiest (and no doubt most
expensive!) way to deploy this module would be to buy the evaluation kit
EVK-5T, which comes with USB and RS232 interface, active antenna, power
supply and all the software and documentation. From my experience, the
U-BLOX PC support software is excellent.

U-BLOX are based in Switzerland, so more-or-less speak your language.

73,
Murray ZL1BPU


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