Re: Leica TCs

 Steve stated for the record...
> On Tue, 15 Jul 2003 18:01:13 +0200, "Gavin Ward" <[EMAIL PROTECTED]>
> wrote:
>
>>I know what you mean. I have a TCR703 and also a TCRA1103 on demo.
>>from Leica. Very, very nice!!
>>"
>
> I have an affection for the TC1600. Another old series I likes was the
> TC605,805,905 series which has single pointing accuracy of 5"3" and 2"
> respectively. On a large project I purchased some of each accuracy but
> was impressed by the 2" 902 precision. ,  I especially appreciated
> this series after the TC600,800 series which Leica introduced assuming
> everyone wished to use an external data logger and which, if used
> without a data logger would tear your hair out because of the poor on
> board software.- a disastrous marketing decision which was redeemed by
> the 605,805,905 series. The TC1105,3,2,1 series have taken this to an
> even higher level.
>
> The servo moter driven continous slow motion with no slow motioin
> clamp is fine instrrumentation.
>
> I'm yet to be converted by robotic 'one man' TCRAs but then again I
> haven't used one. I also usually work in economies where field
> assistants earn a lot less than the surveyor.:-)
>
> While I'm talking to the converted..:-)
>
> I had the pleasure of doing a couple of DAM monitoring jobs recently
> using a TCA2003 with every setup being a concrete pillar.
>
> Whats more it had the latest "surveillance software' loaded, which is
> an improved version of 'sets of angles' which automically does sets of
> measurements are roughly pointing to each staion just once.
>
> Wow!!! is it simple to use and accurate in its results
>
> I tossed the data into Terramodels Raw data editor and the LS
> adjustement gave error ellipses of major axes never exceeded 2mm and
> 90% where less than 1.5mm
>
> And considering it is considered' old equipment'  it is all the more
> mind boggling.. Check out  the specs on the Leica website...even
> better than a TCA1801
>
> Steve!

...just my opinion but the TCRAs are great for detailed topo surveys - I use
a TCRA1101plus and since switching to it my constant back/neck ache has
disappeared, and I get to walk the site instead of being stuck in one place!
:-)
They're also good for setting out - I recently set out all the stand
markings and taxiway markings at Bristol airport with one, & what could have
been a nightmarish job was accomplished in a few days.
Another excellent feature is the reflectorless measurement option, range
about 80-100m with a red laser, very handy for inaccessible points, house
corners, elevation surveys etc.
Talking of which, has anyone had any experience with a Cyrax scanner?