Really? I thought helix antennae were poor choices because they accept
signals at low angles. In fact the article makes a point of saying it
accepts low-angled signals.
From satellites coming in at only 5 deg above the horizon, they're
prone to distortion from the atmosphere and ground obstacles. Now the
software can just refuse to use those satellites because it knows the
angles from the ephemeris data.
But as I understand it, a lot of the multipath reflections- delayed
versions of the original signal bouncing off things- often comes in at a
low angle, so the antenna rejecting the low-angled reception will help.
These signals traveled a longer path and only distort the pseudorange.
Since this is a feature of the antenna, software can't just elect to
reject these signals- and it if could, it would.
Danny
On 3/11/2014 1:10 AM, Anton Strydom wrote:
Hi Max
Have a look at the attached, this is what I started off using it with
a U-Blox 6 T receiver
Regards
Anton
On Tue, Mar 11, 2014 at 7:52 AM, mazahirp
<[email protected] <mailto:[email protected]>>
wrote:
Hi All,
Can anyone help me to buy a good antenna which can give me
accurate results.
I am using u-blox 6T as receiver and RTKLIB.
Currently I am using GILSON GPS active antenna on both the
receivers (base
and rover). I am not an expert into antennas so I wanted to know
if this
antenna is good enough? If not, which one should I go for. My
budget is
around $100.
Thanks for the help.
Cheers,
Max
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